CN109678606B

CN109678606B - Set fertilizer for preventing large and small years caused by delayed fruit picking of honey pomelos

Info

Publication number: CN109678606B
Application number: CN201910119581.3A
Authority: CN
Inventors: 孔庆波; 张青; 栗方亮
Original assignee: Institute of Soil and Fertilizer Fujian Academy of Agricultural Sciences
Current assignee: Institute of Soil and Fertilizer Fujian Academy of Agricultural Sciences
Priority date: 2019-02-18
Filing date: 2019-02-18
Publication date: 2021-12-07
Anticipated expiration: 2039-02-18
Also published as: CN109678606A

Abstract

The invention belongs to the technical field of fertilizers, and particularly relates to a package fertilizer for preventing large and small years caused by delayed fruit picking of honey pomelos. The invention provides a set of fertilizer for promoting the flower bud differentiation of honey pomelos, which has simple components, low cost and good effect: the compound fertilizer comprises a lunar seed fertilizer set fertilizer and a flower and fruit retention fertilizer set fertilizer, wherein the lunar seed fertilizer set fertilizer is used for supplementing nutrition and promoting flower bud differentiation and comprises a root fertilizer and a leaf fertilizer, and the flower and fruit retention fertilizer set fertilizer is used for improving the quality of flowers and fruits and comprises the root fertilizer and the leaf fertilizer. The set of fertilizer can promote nutrition supplement of fruit trees, is beneficial to flower bud differentiation, prevents flower and fruit dropping, promotes growth of fruit trees in the next year and avoids yield reduction.

Description

Set fertilizer for preventing large and small years caused by delayed fruit picking of honey pomelos

Technical Field

The invention belongs to the technical field of fertilizers, and particularly relates to a package fertilizer for preventing large and small years caused by delayed fruit picking of honey pomelos.

Background

The fruit trees are a difficult problem to be generally faced by fruit growers in large and small years, under the drive of some sudden weather and economic benefits, especially in the early low-price period, the fruit growers often choose to pick at a waiting price, so that the fruit bearing time of the fruit trees is prolonged, the fruit trees grown in the years after delayed picking have long fruit bearing time, certain burden is additionally added to the trees, and the nutrition consumption of the trees is higher. At this time, the growth and development of the fruit consumes so much nutrients that there are not enough nutrients for flower bud formation, resulting in suppression of flower bud formation. Secondly, developing seeds in the fruit produce hormones that inhibit flower bud inoculation, primarily gibberellins, which are also one of the causes of growth and development. The fruit trees form new branches, flowers and fruits from leaf buds and flower buds every year, and the proportion relation between the flower buds and the leaf buds formed every year is one of the main factors for determining the fruit yield. Therefore, after flower bud differentiation, the fruit tree is easy to have insufficient nutrient supply during the vigorous period of the flowers and fruits, so that the conditions of unfavorable fruit growth, such as flower bud quality, pollination fertilization quality reduction, and abnormal growth of flower organs, still occur in large and small years, and the nutrient supply of the flowers and fruits of the fruit tree after flowering is very important.

Patent CN104177169A discloses a compound fertilizer for preventing pear trees from bearing fruits in big or small years and an application method thereof, according to the characteristic that the pear trees have storage nutrition and different fertilizer demand amounts in each growth period, the nutrient demand and application method in the pear tree planting process are reasonably planned, the nutrient supply of the pear trees in the current year is fully met, the nutrient storage capacity of the pear trees is promoted, and the basic nutrient supply is provided for flowering fruits in the next year, so that the phenomenon of bearing fruits in big or small years is avoided, the obtained fruits are uniform in size, sufficient in moisture, delicious and rich in juice, the fruit yield is greatly improved compared with the traditional fertilizer application, but the method has harsh conditions, high cultivation cost and high consumption of manpower and material resources. Patent CN107041196A discloses a fertilizing method for solving the problem of big and small years of golden locust: (1) after the golden pagoda tree leaves fall in winter, retracting and trimming branches of the golden pagoda tree to be 10cm-30cm long, continuing to expand pits and apply fertilizer, performing root breaking treatment around plants, digging an annular ditch, and uniformly mixing the fertilizer A and soil and applying the fertilizer A into the ditch; (2) after spring young shoots sprout, when the young shoots of the golden pagoda bud are less than or equal to 5cm long, fertilizer B is sprayed on the leaves of the golden pagoda tree, when the young shoots are 15-25cm long, fertilizer C is sprayed on the leaves of the golden pagoda tree, and when the young shoots are 25-40cm long, fertilizer D is sprayed on the leaves of the golden pagoda tree, the golden pagoda tree is obtained.

The invention mainly introduces Fujian peaceful honey pomelo trees in the south of the Yangtze river, and the area has wide regions, complex terrain and warm and humid climate and is suitable for the growth of honey pomelo. Before the bud morphological differentiation initial stage of the honey pomelo fruit tree and after blooming, the nutrient requirements of the fruit tree are extremely important; the traditional fertilizer application of fruit growers is insufficient for nutrition supply of fruit trees, and the nutrient content is not reasonably adjusted, so that the invention aims to solve the problem of big and small years caused by late fruit picking of the fruit trees, and the key points are the lunar fertilizer after fruit picking and flower and fruit retention in the flowering period; the flower bud differentiation is closely related to the production practice, and the research on the flower bud differentiation mechanism of the fruit trees is closely related to the overcoming of fruit tree fruiting in large and small years, the improvement of fruit quality and the early fruiting of young trees. Therefore, the invention aims to provide a set of water-soluble set fertilizer which can promote flower bud differentiation, protect flowers and fruits, improve the yield of honey pomelos and avoid the need of large and small years caused by late fruit picking.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a honey pomelo set fertilizer for preventing the honey pomelo from being picked late for the old and the young, which can promote the nutrition supplement of the fruit trees, is beneficial to flower bud differentiation, prevents flower and fruit dropping, promotes the growth of the fruit trees in the next year and avoids the reduction of yield.

In order to solve the problems, the invention provides a set of fertilizer for promoting the flower bud differentiation of honey pomelos, which has simple components, low cost and good effect: the monthly organic fertilizer package fertilizer is used for supplementing nutrition and promoting flower bud differentiation, consists of a root fertilizer and a leaf fertilizer, and consists of the root fertilizer and the leaf fertilizer for improving the quality of flowers and fruits.

The fertilizer for the roots of the lunar manure for supplementing nutrition and promoting flower bud differentiation comprises the following active ingredients in parts by weight: 12-15 parts of urea, 30-32 parts of monoammonium phosphate, 25-27 parts of bone meal, 14-15 parts of monopotassium phosphate, 0.2-0.3 part of boric acid, 0.9-1.1 part of microelement iron manganese zinc copper chelate, 1.2 parts of magnesium nitrate, 6 parts of chitin and 2 parts of humic acid.

Wherein the humic acid is any one of fulvic acid or biochemical fulvic acid; the microelement iron manganese zinc copper chelate is EDTA chelated fertilizer.

The preparation method of the root fertilizer of the lunar manure adopts an equivalent incremental mixing method: weighing the raw materials in proportion for later use; mixing boric acid and trace elements of iron, manganese, zinc and copper chelate uniformly, sequentially adding magnesium nitrate, humic acid, chitin, monopotassium phosphate, urea and bone meal, mixing uniformly, finally adding monoammonium phosphate, mixing uniformly to obtain a mixture with consistent color, grinding, sieving by a 200-mesh sieve, weighing and bagging to obtain a finished product.

The lunar manure foliar fertilizer for supplementing nutrition and promoting flower bud differentiation comprises the following active ingredients in parts by weight: 14-16 parts of monopotassium phosphate, 20-40 parts of amino acid, 15-25 parts of sugar, 1-5 parts of urea, 0.9-1.1 parts of microelement iron-manganese-zinc-copper chelate, 0.9-1.1 parts of sodium molybdate, 3-20 parts of auxiliary agent and 0.2 parts of uniconazole.

The amino acid is one or more of proline, glutamic acid and polyaspartic acid; the sugar is one or two of sucrose and glucose; uniconazole is a growth inhibitor with a dual action: causing the growth of young shoots and causing the accumulation of cytokinins. Cytokinin has obvious effect of promoting the formation of flower buds. In addition, the plant growth retardant also has the effects of delaying plant growth, inhibiting stem elongation, shortening internodes, promoting plant tillering, increasing plant stress resistance, improving yield and the like.

The auxiliary agent comprises: dispersing agent, wetting agent, osmotic diffusion agent and preservative; the weight ratio of the dispersing agent, the wetting agent, the penetrating and diffusing agent and the preservative is 3:3:8: 1. The addition of the dispersing agent and the preservative can increase the liquid stability of the water-soluble fertilizer, so that liquid precipitation is avoided, and the storage time is longer; the wetting agent and the penetration diffusion agent are added, so that when the fertilizer is sprayed, the wetting, penetration and diffusion performances of liquid drops on the leaves are enhanced, and the utilization rate of the fertilizer is improved.

The preparation method of the lunar manure foliar fertilizer comprises the following steps: dissolving amino acid and sugar in 10-20 parts of water, stirring, shaking, and making into mother liquor with pH of 2-5; adding a pH regulator at the normal temperature of 15-35 ℃, regulating the pH of mother liquor to 6-10, adding EDTA chelated iron, manganese, zinc and copper, continuously stirring and shaking uniformly, adding urea, stirring for 1-2h, adding monopotassium phosphate, stirring and shaking uniformly, adding sodium molybdate, stirring for 0.2h, adding other residual components, finally adding an auxiliary agent, stirring for 0.1-2h, filtering, and forming a product.

The fertilization method of the lunar seed fertilizer set meal fertilizer comprises the following steps: after fruit picking is finished (about 11 months), most of nutrition of tree bodies is taken away by the fruit trees, and at the moment, the temperature is low, the phosphorus is not absorbed well by the fruit trees, so that a large amount of nutrition needs to be supplemented, and particularly, the phosphorus element needs to be increased. Therefore, the reagent of the invention is rich in phosphorus in the root fertilizer of the lunar seed fertilizer; and (3) performing hole application on the honey pomelo fruit tree by using the root fertilizer of the lunar seed fertilizer, digging a strip-shaped fertilizer application belt with the depth of about 5-10cm at a position 2-3 inches away from the root of the honey pomelo fruit tree, and covering soil after fertilizer application. And (4) spraying a leaf fertilizer of the lunar rover fertilizer the next day after the lunar rover fertilizer is applied, and spraying the whole plant, wherein the amount of the sprayed fertilizer is preferably that water drops are generated by spraying, and the purpose is to promote flower buds to differentiate and absorb nutrition. The lunar manure foliar fertilizer needs to be diluted by 300-500 times with water and then sprayed; spraying for 2-4 times every 8-10 days.

Auxiliary measures are matched:

(1) pinching: the top of the new germinated branch is removed, the operation is preferably carried out in the morning, and the side branch core picking serving as the auxiliary cultivation branch is reserved, so that the standard that the illumination among plants is not influenced and the planned leaf number is reached is taken as a standard. And (3) pinching, wherein the pinching is carried out 7-10 days before the capping of the young shoots, and at the moment, the honey pomelo fruit trees are still in the full bearing stage, so that the branching is promoted early, and the effect of forming axillary buds is not great late.

(2) Ring cutting the control tip: accurately controlling the flower bud differentiation of honey pomelos: the girdling is mainly performed on a trunk, a main branch or other big branches by adopting spiral girdling, the pitch is adjusted according to the age of the tree, the girdling is performed after the end tip is aged, and when the beginning of the winter tip is discovered in the middle and late 1 month, a circle of girdling is performed on the trunk and branch of the tree body, and the depth reaches xylem. The effect of girdling is to prevent the photosynthetic products on the overground part from being transported to the root in a short time and reduce the nutrition supply of the root system, thereby inhibiting the root group from absorbing water and fertilizer and achieving the effects of inhibiting the growth of the branch tips and controlling the winter tips. The effect of the girdling treatment promotes the physiological and biochemical property of flower buds and the formation of inflorescence primordium, and changes the level balance of endogenous hormones, thereby promoting the flower formation of honey pomelos, and improving the flower formation rate of branches at the last stage and the fruit setting rate of female flowers. The blooming time can be delayed for 15-20 days by one girdling, and the girdling is suitable for light and not heavy.

(3) And (3) winter pruning: during winter pruning, fruit branches are kept as much as possible (preferably, the fruit branches are not pruned but are pruned before flowers) to protect and utilize the formed and growing flower buds, so that the flower buds are not too small in the next year. The fruit and flower bud of the perennial tree are one of the main contradictions, namely, the competition of nutrient components. The fruit branches are pruned, and the aim is to ensure that the fruit branches can be fully irradiated by sunlight, strong light can inhibit the synthesis of auxin in young shoots, and stronger ultraviolet light can also passivate and decompose the auxin, so that the flower-promoting hormone is dominant, and the formation of flower buds is promoted. The drop of the branch, the twisting of the branch and the twisting of the tip are also beneficial to the formation of flower buds. In addition, after the fruit picking is finished and the autumn tips are fully aged, the root cutting, the root exposing and the root drying are carried out by combining with fertilization.

(4) And (3) cleaning the garden twice after picking the fruits and before the flower germination period, wherein the medicament used for cleaning the garden is 300 times of the 29 percent lime sulfur mixture water agent 100-.

The invention also provides a set of fertilizer for preserving flowers and fruits of honey pomelos, which has simple components, low cost and good effect and is suitable for being applied in the flower and fruit period.

A flower and fruit retention root fertilizer for improving the quality of flowers and fruits comprises the following active ingredients in parts by weight: 20-30 parts of urea, 30-32 parts of monoammonium phosphate, 15-20 parts of bone meal, 14-15 parts of monopotassium phosphate, 0.9-1.1 parts of microelement iron-manganese-zinc-copper chelate, 1.2 parts of magnesium nitrate and 6 parts of chitin.

The preparation method of the flower and fruit retention root fertilizer adopts an equivalent incremental mixing method, and raw materials are weighed according to the weight percentage of each effective component for later use; firstly, uniformly mixing all trace elements, then sequentially adding magnesium nitrate, chitin, potassium dihydrogen phosphate, urea and bone meal, uniformly mixing, finally adding monoammonium phosphate, uniformly mixing to obtain a mixture with consistent color, grinding, sieving by a 200-mesh sieve, weighing and bagging to obtain a finished product.

The flower and fruit retention foliar fertilizer for improving the quality of flowers and fruits comprises the following active ingredients in parts by weight: 14-16 parts of monopotassium phosphate, 20-40 parts of amino acid, 15-25 parts of sugar, 5-10 parts of urea, 0.9-1.1 parts of microelement iron-manganese-zinc-copper chelate, 0.9-1.1 parts of sodium molybdate, 3-20 parts of auxiliary agent and 0.1 part of gibberellin.

The gibberellin is a plant growth regulator with high physiological activity, can remarkably promote the growth of plant stems and leaves, can balance nutrition if being sprayed in a growth period, is beneficial to the growth vigor of crops, can protect flowers and fruits and can also enable the fruits to be enlarged and have a fruit beautifying effect if being sprayed in a flowering period; the auxiliary agent, amino acid and sugar in the reagent are all the same as those used in the lunar seed manure leaf surface fertilizer.

The preparation method of the flower and fruit retention foliar fertilizer comprises the following steps: dissolving corresponding amino acid and saccharide in 10-20 parts of water, stirring, shaking to obtain mother liquor with pH of 2-5; adding a pH regulator at the normal temperature of 15-3 ℃, regulating the pH of mother liquor to 6-10, adding EDTA chelated iron, manganese, zinc and copper, continuously stirring and shaking uniformly, adding urea, stirring for 1-2h, adding monopotassium phosphate, stirring and shaking uniformly, adding sodium molybdate, stirring for 0.2h, adding other residual components, finally adding an auxiliary agent, stirring for 0.1-2h, filtering, and forming a product.

The fertilizing method comprises the following steps: after the honey pomelo fruit trees bloom, applying a flower and fruit protecting root fertilizer to the fruit trees, performing hole application to the honey pomelo fruit trees, digging a strip-shaped fertilizer applying belt with the depth of about 5-10cm at a position 2-3 inches away from the roots of the honey pomelo fruit trees, and covering soil after applying the fertilizer. Spraying flower and fruit protecting foliar fertilizer every other day, spraying the whole plant with the optimal dosage of generating water drops, and spraying for 2-4 times every 8-10 days. The flower and fruit retention foliar fertilizer needs to be diluted by 300 times and 500 times, the fruit retention is not emphasized in the first physiological fruit drop period, and the foliar fertilizer can be sprayed for 1 to 2 times to supplement trace elements.

Auxiliary measures are matched: there are two kinds of conditions for the fruit tree in the young, and the flower and fruit protection measures selected in different conditions are different:

has the advantages that: the invention provides a method for preventing the growth of large and small years caused by delayed fruit picking of fruit trees and promoting the germination, differentiation, flower retention and fruit retention of honey pomelos.

Detailed Description

The present invention will be further described in detail with reference to the following specific examples, which are not intended to limit the invention in any manner.

Example one

A set of fertilizers for preventing large and small years caused by delayed fruit picking of honey pomelos: the compound fertilizer comprises a lunar seed fertilizer set fertilizer and a flower and fruit retention fertilizer set fertilizer, wherein the lunar seed fertilizer set fertilizer is used for supplementing nutrition and promoting flower bud differentiation and consists of a root fertilizer and a leaf fertilizer.

The fertilizer for the roots of the lunar manure for supplementing nutrition and promoting flower bud differentiation comprises the following active ingredients in parts by weight:

urea	15
		Monoammonium phosphate	32.5
Bone meal	27
		Potassium dihydrogen phosphate	15
EDTA-Fe	0.25
		EDTA-Mn	0.25
EDTA-Zn	0.25
		EDTA-Cu	0.25
Magnesium nitrate	1.2
		Chitin	6
Boric acid	0.3
		Humic acid	2

The specific preparation method of the root fertilizer of the lunar manure comprises the following steps:

weighing the raw materials in proportion for later use; mixing boric acid and trace elements of iron, manganese, zinc and copper chelate uniformly, sequentially adding magnesium nitrate, humic acid, chitin, monopotassium phosphate, urea and bone meal, mixing uniformly, finally adding monoammonium phosphate, mixing uniformly to obtain a mixture with consistent color, grinding, sieving by a 200-mesh sieve, weighing and bagging to obtain a finished product.

The lunar manure foliar fertilizer for supplementing nutrition and promoting flower bud differentiation comprises the following active ingredients in parts by weight:

the specific preparation method of the lunar manure foliar fertilizer comprises the following steps:

the preparation method of the lunar manure foliar fertilizer comprises the following steps: dissolving glutamic acid, proline and sucrose in 25.9 parts of water, stirring, shaking up, and preparing into mother liquor with pH of 2-5; adding a pH regulator at the normal temperature of 15-35 ℃, regulating the pH of mother liquor to 6-10, adding EDTA chelated iron, manganese, zinc and copper, continuously stirring and shaking up, adding urea, stirring for 1-2h, adding monopotassium phosphate, stirring and shaking up, adding sodium molybdate, stirring for 0.2h, adding other residual components, finally adding a dispersant, a wetting agent, a diffusion penetrating agent and a preservative, stirring for 0.1-2h, filtering, and forming a product.

The fertilization method of the lunar seed fertilizer set meal fertilizer comprises the following steps: after fruit picking is finished (about 11 months), most of nutrition of tree bodies is taken away by the fruit trees, and at the moment, the temperature is low, the phosphorus is not absorbed well by the fruit trees, so that a large amount of nutrition needs to be supplemented, and particularly, the phosphorus element needs to be increased. The content of phosphorus in the root fertilizer of the reagent of the invention is more; performing hole application on the honey pomelo fruit tree by using the root fertilizer of the lunar seed fertilizer, digging a strip-shaped fertilizer application belt with the depth of about 5-10cm at a position 2-3 inches away from the root of the honey pomelo fruit tree, and covering soil after fertilizer application. And (4) spraying a leaf fertilizer of the lunar rover fertilizer the next day after the lunar rover fertilizer is applied, and spraying the whole plant, wherein the amount of the sprayed fertilizer is preferably that water drops are generated by spraying, and the purpose is to promote flower buds to differentiate and absorb nutrition. The lunar manure foliar fertilizer is diluted by 500 times with water and then sprayed; spraying for 2-4 times every 8-10 days.

Auxiliary measures are matched:

(2) Ring cutting the control tip: accurately controlling the flower bud differentiation of honey pomelos: the girdling is mainly performed on a trunk, a main branch or other big branches, spiral girdling is adopted, the pitch is adjusted according to the age of the tree, the girdling is performed after the end tip is aged, and a circle of girdling is performed on the trunk branches of the tree body in the middle and late 1 month when the beginning of the winter tip is discovered, so that the depth reaches xylem. The effect of girdling is to prevent the photosynthetic products on the overground part from being transported to the root in a short time and reduce the nutrition supply of the root system, thereby inhibiting the root group from absorbing water and fertilizer and achieving the effects of inhibiting the growth of the branch tips and controlling the winter tips. The effect of the girdling treatment promotes the physiological and biochemical property of flower buds and the formation of inflorescence primordium, and changes the level balance of endogenous hormones, thereby promoting the flower formation of honey pomelos, and improving the flower formation rate of branches at the last stage and the fruit setting rate of female flowers. The blooming time can be delayed for 15-20 days by one girdling, and the girdling is suitable for light and not heavy.

(3) And (3) winter pruning: during winter pruning, fruit branches (preferably, pruning is not conducted but just before flowers) are preserved and utilized to protect and utilize flower buds which are formed and are formed, so that the flower buds are not too small in the next year. The fruit and flower bud of the perennial tree are one of the main contradictions, namely, the competition of nutrient components. The fruit branches are pruned, and the aim is to ensure that the fruit branches can be fully irradiated by sunlight, strong light can inhibit the synthesis of auxin in young shoots, and stronger ultraviolet light can also passivate and decompose the auxin, so that the flower-promoting hormone is dominant, and the formation of flower buds is promoted. The drop of the branch, the twisting of the branch and the twisting of the tip are also beneficial to the formation of flower buds. In addition, after the fruit picking is finished and the autumn tips are fully aged, the root cutting, the root exposing and the root drying are carried out by combining with fertilization.

The flower and fruit retention fertilizer set is used for improving the quality of flowers and fruits and consists of root fertilization and leaf fertilization.

A flower and fruit retention fertilizer root fertilizer comprises the following active ingredients in parts by weight:

urea	26.8
		Monoammonium phosphate	32
Bone meal	18
		Potassium dihydrogen phosphate	15
EDTA-Fe	0.25
		EDTA-Mn	0.25
EDTA-Zn	0.25
		EDTA-Cu	0.25
Magnesium nitrate	1.2
		Chitin	6

The specific preparation method of the flower and fruit retention fertilizer root fertilizer comprises the following steps:

weighing the raw materials according to the weight percentage of the active ingredients for later use; firstly, uniformly mixing all trace elements, then sequentially adding magnesium nitrate, chitin, potassium dihydrogen phosphate, urea and bone meal, uniformly mixing, finally adding monoammonium phosphate, uniformly mixing to obtain a mixture with consistent color, grinding, sieving by a 200-mesh sieve, weighing and bagging to obtain a finished product.

A leaf fertilizer for flower and fruit retention is prepared from the following active ingredients in parts by weight:

the specific preparation method of the flower and fruit retention fertilizer foliar fertilizer comprises the following steps:

dissolving corresponding proline, glutamic acid and sucrose in 22 parts of water, stirring, shaking up, and preparing into mother liquor with pH of 2-5; adding a pH regulator at the normal temperature of 15-35 ℃, regulating the pH of mother liquor to 6-10, adding EDTA chelated iron, manganese, zinc and copper, continuously stirring and shaking uniformly, adding urea, stirring for 1-2h, adding monopotassium phosphate, stirring and shaking uniformly, adding sodium molybdate, stirring for 0.2h, adding other residual components, finally adding an auxiliary agent, stirring for 0.1-2h, filtering, and forming a product.

The fertilizing method comprises the following steps: after the honey pomelo fruit tree blooms, applying flower and fruit protecting root fertilizer to the fruit tree, performing hole application to the honey pomelo fruit tree, digging a strip-shaped fertilizer applying belt with the depth of about 5-10cm at a position 2-3 inches away from the root of the honey pomelo fruit tree, and covering soil after fertilizer application. Spraying flower and fruit protecting foliar fertilizer every other day, spraying the whole plant with the optimal dosage of generating water drops, and spraying for 2-4 times every 8-10 days. The flower and fruit retention foliar fertilizer needs to be diluted by 300 times and 500 times, the fruit retention is not emphasized in the first physiological fruit drop period, and the foliar fertilizer can be sprayed for 1 to 2 times to supplement trace elements.

Example two

potassium dihydrogen phosphate	16
		Proline	23
Sucrose	16
		Urea	4
Sodium molybdate	0.9
		EDTA-Fe	0.25
EDTA-Mn	0.25
		EDTA-Zn	0.25
EDTA-Cu	0.25
		Uniconazole	0.2
Dispersing agent	3
		Wetting agent	3
Osmotic diffusion agent	8
		Preservative	1
Water (W)	25.9

The fertilization method of the lunar seed fertilizer set meal fertilizer comprises the following steps: after fruit picking is finished (about 11 months), most of nutrition of the tree body is taken away by the fruit trees, and at the moment, the temperature is low, the phosphorus is not absorbed well by the fruit trees, so that a large amount of nutrition needs to be supplemented, and meanwhile, the phosphorus element needs to be increased. The content of phosphorus in the root fertilizer of the reagent of the invention is more; performing hole application on the honey pomelo fruit tree by using the root fertilizer of the lunar seed fertilizer, digging a strip-shaped fertilizer application belt with the depth of about 5-10cm at a position 2-3 inches away from the root of the honey pomelo fruit tree, and covering soil after fertilizer application. And (4) spraying a leaf fertilizer of the lunar rover fertilizer the next day after the lunar rover fertilizer is applied, and spraying the whole plant, wherein the amount of the sprayed fertilizer is preferably that water drops are generated by spraying, and the purpose is to promote flower buds to differentiate and absorb nutrition. The lunar manure foliar fertilizer needs to be diluted by 500 times by water and then sprayed; spraying for 2-4 times every 8-10 days.

urea	27.8
		Monoammonium phosphate	31
Bone meal	19
		Potassium dihydrogen phosphate	14
EDTA-Fe	0.25
		EDTA-Mn	0.25
EDTA-Zn	0.25
		EDTA-Cu	0.25
Magnesium nitrate	1.2
		Chitin	6

potassium dihydrogen phosphate	16
		Proline	21
Sucrose	18
		Urea	6
Sodium molybdate	0.9
		EDTA-Fe	0.25
EDTA-Mn	0.25
		EDTA-Zn	0.25
EDTA-Cu	0.25
		Gibberellins	0.1
Dispersing agent	3
		Wetting agent	3
Osmotic diffusion agent	8
		Preservative	1
Water (W)	22

The fertilizing method comprises the following steps: after the honey pomelo fruit tree blooms, applying flower and fruit protecting root fertilizer to the fruit tree, performing hole application to the honey pomelo fruit tree, digging a strip-shaped fertilizer applying belt with the depth of about 5-10cm at a distance of 2-3 inches from the root of the honey pomelo fruit tree, and covering soil after fertilizer application. Spraying flower and fruit protecting foliar fertilizer every other day, spraying the whole plant with the optimal dosage of generating water drops, and spraying for 2-4 times every 8-10 days. The flower and fruit retention foliar fertilizer needs to be diluted by 300 times and 500 times, the fruit retention is not emphasized in the first physiological fruit drop period, and the foliar fertilizer can be sprayed for 1 to 2 times to supplement trace elements.

EXAMPLE III

potassium dihydrogen phosphate	15
		Glutamic acid	22
Sucrose	17
		Urea	3
Sodium molybdate	0.9
		EDTA-Fe	0.25
EDTA-Mn	0.25
		EDTA-Zn	0.25
EDTA-Cu	0.25
		Uniconazole	0.2
Dispersing agent	4
		Wetting agent	4
Osmotic diffusion agent	6
		Preservative	1
Water (W)	25.9

The fertilization method of the lunar seed fertilizer set meal fertilizer comprises the following steps: after fruit picking is finished (about 11 months), most of nutrition of tree bodies is taken away by the fruit trees, and at the moment, the temperature is low, the phosphorus is not absorbed well by the fruit trees, so that a large amount of nutrition needs to be supplemented, and particularly, the phosphorus element needs to be increased. The content of phosphorus in the root fertilizer of the reagent of the invention is more; performing hole application on the honey pomelo fruit tree by using the root fertilizer of the lunar seed fertilizer, digging a strip-shaped fertilizer application belt with the depth of about 5-10cm at a position 2-3 inches away from the root of the honey pomelo fruit tree, and covering soil after fertilizer application. And (4) spraying a leaf fertilizer of the lunar rover fertilizer the next day after the lunar rover fertilizer is applied, and spraying the whole plant, wherein the amount of the sprayed fertilizer is preferably that water drops are generated by spraying, and the purpose is to promote flower buds to differentiate and absorb nutrition. The lunar manure foliar fertilizer needs to be diluted by 500 times by water and then sprayed; spraying for 2-4 times every 8-10 days.

potassium dihydrogen phosphate	15
		Glutamic acid	22
Sucrose	17
		Urea	7
Sodium molybdate	0.9
		EDTA-Fe	0.25
EDTA-Mn	0.25
		EDTA-Zn	0.25
EDTA-Cu	0.25
		Gibberellins	0.1
Dispersing agent	4
		Wetting agent	4
Osmotic diffusion agent	6
		Preservative	1
Water (W)	22

Considering the influence of the altitude of a honey pomelo growing region on the phenomena of orchard growth in big and small years, the method respectively performs tests on a Zhangzhou city, a Zhangzhou village, a Zhenyuan village, a Mixi pomelo production garden with the altitude of about 420m, a Zhangzhou city, a Zhenzhou village, a Mitsun village and a Shancun honey pomelo production garden with the altitude of about 60m, and then the recovery condition of the Mitsu pomelo after the application of the set fertilizer is tracked, so that the superiority and the basis worth of wide popularization of the scheme are verified.

Example four

Application of package fertilizer for preventing large and small years caused by delayed fruit picking of honey pomelos

(1) General description of the test site

2015 + 2017 positioning test is carried out in Zhengguan village (N24 degrees, 40 '18.94', E117 degrees, 11 '09.24') of Zhangzhou city and Xizhai Zhengguan village (N24 degrees, 40 degrees, 18.94 ', E117 degrees, 11 degrees, 09.24'), the elevation is 420m, the test belongs to a south subtropical season zone, the precipitation is 1724 mm in three years, and the temperature is 21.3 ℃ in three years. Before the application of the set of meal fertilizers for preventing the years and the years caused by the delayed fruit collection of the honey pomelo, the year and the year phenomenon of the You xi pomelo in the area is obvious, and the historical rule is obvious (see the change of the flowering number and the yield in 12012 and 2014). The basic soil properties are shown in Table 2.

The honey pomelo is red heart honey pomelo variety, and the large and small plant heights are basically consistent.

TABLE 12012 flowering and yield changes in 2014

TABLE 2 testing of the main physicochemical properties of the soil

(2) Design of experiments

And adopting a field plot contrast test.

The test is repeated for 3 times by 2 treatments, 8 plants are planted in each treatment cell, the planting distance is 4.2 multiplied by 3.8m, 40 plants per mu, and random block arrangement is adopted.

Control group: habitual fertilization treatment: the mass ratio of nitrogen to phosphorus pentoxide to potassium oxide is 1:2:1 in 11-12 months, and the formula is that 100 kg of fertilizer consists of 43.5 kg of 15-15-15 sulfur-based compound fertilizer, 54 kg of calcium superphosphate, 0.5 kg of borax, 1.25 kg of zinc sulfate, 0.75 kg of magnesium sulfate and 11.1 kg of potash magnesium sulphate fertilizer; the mass ratio of nitrogen to phosphorus pentoxide to potassium oxide is 2:1:1 in the application of 2-3 months, the formula is that 100 kg of fertilizer is composed of 25 kg of urea and 75 kg of 15-15-15 sulfur-based compound fertilizer; the young fruit fertilizer is applied for the 1 st time in 4-5 months, the mass ratio of the applied nitrogen, phosphorus pentoxide and potassium oxide is 1:1:1, and 100 kilograms of fertilizer is prepared from 15-15-15 sulfur-based compound fertilizer; the fruit-strengthening fertilizer is applied for the 1 st time in 6-7 months, the mass ratio of the applied nitrogen, phosphorus pentoxide and potassium oxide is 1:1:1, the formula is that 100 kg of fertilizer consists of 88.9 kg of 15-15 sulfur-based compound fertilizer and 11.1 kg of potash magnesium sulphate fertilizer; the fertilizer is applied for the 2 nd time in 8 months, the mass ratio of the applied nitrogen, the phosphorus pentoxide and the potassium oxide is 1:1:1, the formula is that 100 kg of the fertilizer consists of 92.3 kg of 15-15-15 sulfur-based compound fertilizer and 7.7 kg of potassium magnesium sulfate fertilizer;

test groups:

treatment 1: the fertilizer application management is the same as that of a control group from 11-12 months to 2-3 months of the next year, and after 4 months, the package fertilizer for preventing the large and small years caused by the delayed fruit picking of the honey pomelos in the embodiment 1 of the invention is adopted, and the fertilizer dosage is based on the mass fraction of a single plant.

And (3) treatment 2: the fertilizer application management is the same as that of a control group from 11-12 months to 2-3 months of the next year, and after 4 months, the package fertilizer for preventing the large and small years caused by the delayed fruit picking of the honey pomelos in the embodiment 2 of the invention is adopted, and the fertilizer dosage is based on the mass fraction of a single plant.

And (3) treatment: the fertilizer application management is the same as that of a control group from 11-12 months to 2-3 months of the next year, and after 4 months, the package fertilizer for preventing the large and small years caused by the delayed fruit picking of the honey pomelos in the embodiment 3 of the invention is adopted, and the fertilizer dosage is based on the mass fraction of a single plant.

The specific fertilization method comprises the following steps:

the fertilization method of the lunar seed fertilizer set meal fertilizer comprises the following steps: after fruit picking is finished (about 11 months), hole application is carried out on the honey pomelo fruit trees by using the root fertilizer of the monthly manure, a strip-shaped fertilizer applying belt with the depth of about 8cm is dug at a position 2-3 inches away from the roots of the honey pomelo fruit trees, and soil is covered after fertilizer application. And (4) spraying a leaf fertilizer of the lunar rover fertilizer the next day after the lunar rover fertilizer is applied, and spraying the whole plant, wherein the amount of the sprayed fertilizer is preferably that water drops are generated by spraying, and the purpose is to promote flower buds to differentiate and absorb nutrition. The lunar manure foliar fertilizer needs to be diluted by 500 times with water and then sprayed; spraying every 10 days for 4 times.

The flower and fruit retention fertilizer set fertilizer application method comprises the following steps: after the honey pomelo fruit tree blooms, applying flower and fruit protecting root fertilizer to the fruit tree, performing hole application to the honey pomelo fruit tree, digging a strip-shaped fertilizer applying belt with the depth of about 8cm at a distance of 2-3 inches from the root of the honey pomelo fruit tree, and covering soil after applying the fertilizer. Spraying flower and fruit protecting foliar fertilizer every other day, spraying the whole plant, wherein the usage amount is preferably water drops generated by spraying, and spraying for 4 times every 10 days. The flower and fruit retention foliar fertilizer is diluted by 500 times, the fruit retention is not emphasized in the first physiological fruit drop period, and the foliar fertilizer can be sprayed for 2 times to supplement trace elements.

Auxiliary measures are matched:

(1) pinching: the top of the new germinated branch is removed, the operation is preferably carried out in the morning, and the side branch core picking serving as the auxiliary cultivation branch is reserved, so that the standard that the illumination among plants is not influenced and the planned leaf number is reached is taken as a standard. The pinching is carried out 10 days before the new shoots are capped, and at the moment, the honey pomelo fruit trees are still in the full bearing stage, so that the effect of promoting the branching is early and the effect of forming axillary buds is not large.

(4) And (3) cleaning the garden twice after picking fruits and before the flower germination period, wherein the medicament used for cleaning the garden is 300 times of 29 percent of lime sulfur aqua.

The control group and the test group are fertilized according to the method, and other fertilization management measures are consistent with the conventional management of local farmers. And (4) counting the average flowering number in the flowering period, counting the average young fruit number in the young fruit period, and counting the average yield in the harvesting period.

Analysis of results

1. Effect of different treatments on the number of flowering in flowering time

TABLE 3 Effect of different treatments on the number of flowering in flowering phase

And (3) injecting the early-stage florescence of the stable-yield year: 1000, 200 in the middle and 90 in the later stage.

As can be seen from Table 3, when the set of meal fertilizer disclosed by the invention is applied and treated according to the fertilizing method disclosed by the invention, compared with the conventional fertilizer, in 2015, the blooming number in the early flowering stage is increased by 43.17% -46.41%, the blooming number in the middle flowering stage is increased by 16.00% -16.49%, and the blooming number in the later flowering stage is increased by 25.26% -24.38%; 2016 is a full year, and compared with the conventional fertilization, the number of blossoms at the early stage of the blooming is increased by-3.58% -2.06%, the number of blossoms at the middle stage of the blooming is increased by 2.22% -3.13%, and the number of blossoms at the later stage of the blooming is increased by 22.3% -3.08%; in 2017, compared with conventional fertilization, the number of blossoms in the early flowering stage is increased by 9.26-9.77%, the number of blossoms in the middle flowering stage is increased by 17.98-19.89%, and the number of blossoms in the later flowering stage is increased by 19.01-21.04%. Therefore, according to the formula of the combo and the fertilizing method disclosed by the invention, the flower bud differentiation can be promoted, and the flowering number of the honey pomelos in the flowering period is increased.

2. Influence of different treatments on agronomic traits of honey pomelos

TABLE 4 influence of different treatments on the agronomic performance of honey pomelos

As can be seen from Table 4, the set of the fertilizer disclosed by the invention is applied and treated according to the fertilizing method disclosed by the invention, and in 2015, the amount of the results is 1.53-1.60 times that of the results of conventional fertilizing treatment; in 2016, the number of the achievements is 1.06-1.11 times that of the achievements of conventional fertilization; in 2017, the number of achievements is 1.42-1.59 times that of conventional fertilization, and therefore according to the set formula and the fertilization method disclosed by the invention, flower and fruit retention can be promoted, and the number of achievements of honey pomelos is increased.

3. Effect of different treatments on yield

TABLE 5 Effect of different treatments on yield

As can be seen from Table 5, compared with conventional fertilization, the honey pomelo is increased by 44.8% -46.3% in 2015 by applying the package fertilizer disclosed by the invention and treating the package fertilizer according to the fertilization method disclosed by the invention; the amplification of 2016 year honey pomelo is increased by-0.8% -1.0%; the yield of honey pomelo in 2017 is increased by 47.2-49.9%. The package formula and the fertilizing method disclosed by the invention improve the yield of the young and avoid the young and the young caused by late fruit picking.

Comparative example

1. Materials and methods

(1) General description of the test site

The experiment is carried out in Yangzhou city and prefecture of south Shengzhen mountain village (N24 degrees 44 '66.41', E117 degrees 49 '46.59') with Mixi pomelo base, the altitude is 60m, the Yangzhou mountain area belongs to the tropical monsoon region of south Asia, the precipitation is 1724 mm in three years, and the temperature is 21.3 ℃ in three years. The test field is brick red soil, and the honey pomelos for trial use are red heart honey pomelos varieties, and the large and small plant heights are basically consistent. The test shows that the soil granulation character alkaline hydrolysis nitrogen is 158.6mg/kg, the available phosphorus is 77.6mg/kg, the quick-acting potassium is 132.1mg/kg, the organic matter is 24.3g/kg, and the pH value is 5.13.

(2) Design of experiments

And adopting a field plot contrast test.

test groups:

The specific fertilization method comprises the following steps:

the fertilization method of the lunar seed fertilizer set meal fertilizer comprises the following steps: after fruit picking is finished (about 11 months), hole application is carried out on the honey pomelo fruit trees by using the root fertilizer of the monthly manure, a strip-shaped fertilizer applying belt with the depth of about 10cm is dug at a distance of 2-3 inches from the roots of the honey pomelo fruit trees, and soil is covered after fertilizer application. And (4) spraying a leaf fertilizer of the lunar rover fertilizer the next day after the lunar rover fertilizer is applied, and spraying the whole plant, wherein the amount of the sprayed fertilizer is preferably that water drops are generated by spraying, and the purpose is to promote flower buds to differentiate and absorb nutrition. The lunar manure foliar fertilizer needs to be diluted by 500 times with water and then sprayed; spraying every 10 days for 4 times.

The flower and fruit retention fertilizer set fertilizer application method comprises the following steps: after the honey pomelo fruit tree blooms, applying flower and fruit protecting root fertilizer to the fruit tree, performing hole application to the honey pomelo fruit tree, digging a strip-shaped fertilizer applying belt with the depth of about 10cm at a distance of 2-3 inches from the root of the honey pomelo fruit tree, and covering soil after applying the fertilizer. Spraying flower and fruit protecting foliar fertilizer every other day, spraying the whole plant, wherein the usage amount is preferably water drops generated by spraying, and spraying for 4 times every 10 days. The flower and fruit retention foliar fertilizer is diluted by 500 times, the fruit retention is not emphasized in the first physiological fruit drop period, and the foliar fertilizer can be sprayed for 2 times to supplement trace elements.

Auxiliary measures are matched:

Analysis of results

1. Effect of different treatments on the number of flowering in flowering time

TABLE 6 Effect of different treatments on the number of flowering in flowering phase

Fengnian flower prophase: 1000, 200 in the middle and 90 in the later stage.

As can be seen from Table 6, when the set of meal fertilizer disclosed by the invention is applied and treated according to the fertilizing method disclosed by the invention, compared with the conventional fertilizer, in 2015, the blooming number in the early flowering stage is increased by 43.11-46.44%, the blooming number in the middle flowering stage is increased by 16.10-16.50%, and the blooming number in the later flowering stage is increased by 25.26-24.38%; 2016 is a full year, and compared with the conventional fertilization, the blooming number at the early stage of the flowering is increased by-3.44% -2.02%, the blooming number at the middle stage of the flowering is increased by 2.25% -3.58%, and the blooming number at the later stage of the flowering is increased by 22.3% -3.08%; in 2017, compared with conventional fertilization, the number of blossoms in the early flowering stage is increased by 9.44% -9.72%, the number of blossoms in the middle flowering stage is increased by 17.90% -19.85%, and the number of blossoms in the later flowering stage is increased by 19.04% -21.86%. Therefore, according to the formula of the combo and the fertilizing method disclosed by the invention, the flower bud differentiation can be promoted, and the flowering number of the honey pomelos in the flowering period is increased.

2. Influence of different treatments on agronomic traits of honey pomelos

TABLE 7 influence of different treatments on the agronomic performance of honey pomelos

As can be seen from Table 7, the set of the fertilizer disclosed by the invention is applied and treated according to the fertilizing method disclosed by the invention, and in 2015, the amount of the results is 1.53-1.58 times that of the results of conventional fertilizing treatment; in 2016, the number of achievements is 1.05-1.12 times that of conventional fertilization; in 2017, the number of achievements is 1.44-1.55 times of that of conventional fertilization, and therefore according to the set formula and the fertilization method disclosed by the invention, flower and fruit retention can be promoted, and the number of achievements of honey pomelos is increased.

3. Effect of different treatments on yield

TABLE 8 Effect of different treatments on yield

As can be seen from Table 8, compared with conventional fertilization, the honey pomelo is increased by 45.8% -46.8% in 2015 by applying the package fertilizer disclosed by the invention and treating the package fertilizer according to the fertilization method disclosed by the invention; the amplification of the honey pomelo in 2016 is increased by-0.5 to 1.0 percent; the yield of honey pomelo in 2017 is increased by 45.2-49.2%. The package formula and the fertilizing method disclosed by the invention improve the yield of the young and avoid the young and the young caused by late fruit picking.

According to the experimental effects of the fourth embodiment and the comparative example, the set of fertilizer disclosed by the invention is applied and treated according to the fertilizing method disclosed by the invention, so that the effects of preventing and improving the phenomenon of big and small years caused by late fruit picking of honey pomelos are good, the yield reduction of honey pomelos is prevented, and the honey pomelos are suitable for different altitudes.

The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.

Claims

1. A method for applying a package fertilizer for preventing the young and old fruit harvest of honey pomelos in a delayed manner is characterized by comprising the following steps: the set of fertilizer comprises a confinement fertilizer set and a flower and fruit retention fertilizer set; the monthly-supply fertilizer is composed of root fertilizer and foliar fertilizer; the flower and fruit protecting fertilizer set is composed of root fertilizer and leaf fertilizer; the root fertilizer for the lunar rover fertilizer comprises the following active ingredients in parts by weight: 12-15 parts of urea, 30-32 parts of monoammonium phosphate, 25-27 parts of bone meal, 14-15 parts of monopotassium phosphate, 0.2-0.3 part of boric acid, 0.9-1.1 part of microelement iron manganese zinc copper chelate, 1.2 parts of magnesium nitrate, 6 parts of chitin and 2 parts of humic acid; the foliar fertilizer for the lunar rover fertilizer comprises the following active ingredients in parts by weight: 14-16 parts of monopotassium phosphate, 20-40 parts of amino acid, 15-25 parts of sugar, 1-5 parts of urea, 0.9-1.1 parts of microelement iron-manganese-zinc-copper chelate, 0.9-1.1 parts of sodium molybdate, 3-20 parts of auxiliary agent and 0.2 part of uniconazole; the root fertilizer for flower and fruit retention comprises the following active ingredients in parts by weight: 20-30 parts of urea, 30-32 parts of monoammonium phosphate, 15-20 parts of bone meal, 14-15 parts of monopotassium phosphate, 0.9-1.1 parts of microelement iron-manganese-zinc-copper chelate, 1.2 parts of magnesium nitrate and 6 parts of chitin; the active ingredients of the foliar fertilizer for flower and fruit retention comprise the following components in parts by weight: 14-16 parts of monopotassium phosphate, 20-40 parts of amino acid, 15-25 parts of sugar, 5-10 parts of urea, 0.9-1.1 parts of microelement iron-manganese-zinc-copper chelate, 0.9-1.1 parts of sodium molybdate, 3-20 parts of auxiliary agent and 0.1 part of gibberellin;

the fertilization method of the lunar fertilizer package fertilizer comprises the following steps: after fruit picking, performing hole application on the honey pomelo fruit trees by using the root fertilizer of the lunar fertilizer, digging a strip-shaped fertilization zone with the depth of 5-10cm at a distance of two inches and three inches away from the roots of the honey pomelo fruit trees, covering soil after fertilization, spraying the foliar fertilizer of the lunar fertilizer the next day after the lunar fertilizer application, and spraying the whole plant, wherein the usage amount is that water drops are sprayed, so that the differentiation and the absorption of nutrition of flower buds are promoted, and the foliar fertilizer is used for diluting the foliar fertilizer by 500 times by using water and then spraying; spraying for 2-4 times every 8-10 days;

the fertilizer application method of the flower and fruit retention fertilizer set comprises the following steps: after the honey pomelo fruit trees bloom, applying a flower and fruit retention root fertilizer to the fruit trees, performing hole application to the honey pomelo fruit trees, digging a strip-shaped fertilization zone with the depth of 5-10cm at a distance of two inches and three inches away from the roots of the honey pomelo fruit trees, covering soil after fertilization, spraying a flower and fruit retention foliar fertilizer every other day, spraying the whole plant with the amount of the flower and fruit retention foliar fertilizer which is preferably sprayed to generate water drops, spraying the flower and fruit retention foliar fertilizer for 2-4 times every 8-10 days, using the flower and fruit retention foliar fertilizer to dilute the leaf fertilizer by 300 times with water firstly, not emphasizing fruit retention in the first physiological fruit drop period, and spraying the foliar fertilizer for 1-2 times.

2. The method for applying the package fertilizer for preventing the young and old years caused by the delayed fruit harvest of the honey pomelos according to claim 1, which is characterized in that: the humic acid is any one of fulvic acid or biochemical fulvic acid; the trace element iron-manganese-zinc-copper chelates are EDTA chelated fertilizers.

3. The method for applying the package fertilizer for preventing the young and old years caused by the delayed fruit harvest of the honey pomelos according to claim 1, which is characterized in that: the preparation method of the root fertilizer of the lunar seed fertilizer adopts an equivalent incremental mixing method: weighing the raw materials in proportion for later use; mixing boric acid and trace elements of iron, manganese, zinc and copper chelates uniformly, then sequentially adding magnesium nitrate, humic acid, chitin, potassium dihydrogen phosphate, urea and bone meal to mix uniformly, finally adding monoammonium phosphate to mix uniformly to obtain a mixture with consistent color, grinding, sieving by a 200-mesh sieve, weighing and bagging to obtain a finished product.

4. The method for applying the package fertilizer for preventing the young and old years caused by the delayed fruit harvest of the honey pomelos according to claim 1, which is characterized in that: the amino acid is one or more of proline, glutamic acid and polyaspartic acid; the sugar is one or two of sucrose and glucose; the auxiliary agent comprises: dispersing agent, wetting agent, osmotic diffusion agent and preservative; the weight ratio of the dispersing agent, the wetting agent, the penetrating and diffusing agent and the preservative is 3:3:8: 1.

5. The method for applying the package fertilizer for preventing the young and old years caused by the delayed fruit harvest of the honey pomelos according to claim 1, which is characterized in that: the preparation method of the lunar manure foliar fertilizer comprises the following steps: dissolving amino acid and sugar in 10-20 parts of water, stirring, shaking, and making into mother liquor with pH of 2-5; adding a pH regulator at the normal temperature of 15-35 ℃, regulating the pH of mother liquor to 6-10, adding a trace element iron-manganese-zinc-copper chelate, continuously stirring and shaking uniformly, adding urea, stirring for 1-2h, adding potassium dihydrogen phosphate, stirring and shaking uniformly, adding sodium molybdate, stirring for 0.2h, adding other residual components, finally adding an auxiliary agent, stirring for 0.1-2h, filtering, and forming a product.