CN110436980B - Compound fertilizer special for macadimia nuts and package fertilizer and fertilizing method thereof - Google Patents
Compound fertilizer special for macadimia nuts and package fertilizer and fertilizing method thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
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Abstract
The invention discloses a compound fertilizer special for macadimia nuts, a package fertilizer and a fertilizing method thereof, wherein the compound fertilizer comprises the following components in parts by weight (18-21.5): (3.6-4.3): n, P of (15-17.2)2O5And K2O component, and N, P2O5And K2The total nutrient content of O is 36.6-43%, the package fertilizer comprises pre-flower fertilizer, fruit-protecting and fruit-strengthening fertilizer and oil content accumulation fertilizer which are all compound fertilizers, and post-fruit fertilizer consisting of compound fertilizers, organic fertilizers and micro-fertilizers, wherein the micro-fertilizers comprise borax, ferrous sulfate, magnesium sulfate and zinc sulfate heptahydrate; the application method is to dig a fertilizing ditch along the water dripping line of the tree crown, cover soil after uniform application and water. The compound fertilizer can meet the nutrient requirements of growth and development of macadimia nuts, and avoids resource waste and environmental risks; the set of fertilizer and the fertilizing mode can exert the potential of efficiently utilizing nutrients by the root system, and effectively improve the utilization rate of the fertilizer; can be beneficial to the construction of healthy trees and sustainable orchard construction.
Description
Technical Field
The invention belongs to the technical field of novel agricultural fertilizers, and relates to a compound fertilizer special for macadimia nuts, a package fertilizer and a fertilizing method thereof.
Background
Macadamia nuts, also known as Kunlan nuts, macadamia walnuts and Hawaii nuts, belong to the family of dicotyledonous plants, the family of Hylocereus, the family of macadamia, which is an evergreen tree fruit tree native to the southeast of Kunlan Australia and the northeast of New southern Wallace. Macadamia nut is rich in nutrition, has the fat content of more than 78 percent, is a raw material of various high-grade snacks and cosmetics, is very popular in the international market, has higher economic value and is a good name of 'dried fruit queen'.
The range of macadamia nuts planted has been gradually spread in recent years, and is currently mainly between 34 ° north latitude (california, usa) and 30 ° south latitude (south africa), and about 20 countries and regions in the world are planted. In China, macadimia nuts are introduced and tested in the 70 th century of the 20 th century, and are planted in provinces (regions) such as Guangdong, Guangxi, Yunnan, Hainan, Fujian, Sichuan and Guizhou at present, wherein the planting area of the Yunnan province accounts for 94% of the national planting area and is the first nationwide. According to the statistics of southern Asia of the Ministry of agriculture, the planting area of macadamia nuts in 2015 in China reaches 12.78 ten thousand hectares, which accounts for 57.5 percent of the total planting area in the world and is the first place in the world.
Taking Yunnan province as an example, most of produced orchards lack scientific and reasonable planning, the intensive management degree is low, particularly scientific technical guidance in aspects of water and fertilizer management and shaping and pruning is lacked, and the yield of macadamia nuts is generally low. Macadamia nut farmers lack scientific management, approximately 43% of people fertilize twice every year, and the fertilizer application mode of broadcasting is adopted, so that the utilization efficiency of the fertilizer is greatly reduced. The selection of fruit growers on the fertilizer variety is also various, and most of the fruit growers adopt N: p is2O5：K2O is 15: 15: 15, the fertilizing amount is far higher than the demand of fruit trees, thus causing great resource waste. Meanwhile, the macadimia nuts have a special root system, namely row roots, which are root clusters formed by low-phosphorus induction and formed by a large number of limited-growth lateral roots like hairbrushes, can secrete a large amount of citric acid to efficiently activate insoluble phosphorus in rhizosphere soil, and improve the absorption and utilization efficiency of plants on soil phosphorus resources. Excessive fertilizer, especially phosphate fertilizer, applied by farmers can inhibit the root growth of macadamia nut trees, inhibit the exertion of the biological potential of the fruit trees and reduce the absorption of the fruit trees to soil nutrients.
Therefore, China must improve the yield and quality of the macadimia nuts and reduce the production cost, so that the macadimia nuts can obtain advantages in international macadimia nut industry competition. Whether macadamia nut can achieve high yield depends largely on its nutritional level. At present, the fertilizing amount of developed countries such as the United states and Australia is determined according to the tree age, and then the fertilizing scheme is continuously perfected through leaf nutrition diagnosis, so that a more reasonable fertilizing management scheme for the Australian nuts is created. While the fertilization management of the macadimia nuts is still in a primary exploration stage in China, the knowledge of reasonable fertilization period, fertilization quantity, application proportion of various nutrient elements, application mode and the like of the macadimia nuts is shallow, and the management is unscientific. Unreasonable nutrient management and investment are an important reason for low yield of the macadimia nuts, and a fertilization management scheme suitable for the macadimia nut planting in China is very important for solving the problems of nutrient management of the macadimia nuts at the present stage in China.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a compound fertilizer special for macadimia nuts, a package fertilizer and a fertilizing method thereof.
The invention adopts the following technical scheme:
the invention provides a special compound fertilizer for macadamia nut, which specifically comprises N components and P2O5Component (A) and (B)2A component O, wherein the ratio of N: p2O5：K2The weight ratio of O is (18-21.5): (3.6-4.3): (15-17.2), and said N, P2O5And K2The total nutrient content of O is 36.6-43%.
By the nutrient balance principle, the application amount of nitrogen, phosphorus and potassium is equal to the amount of nutrient taken away per macadimia nut tree per year (annual growth amount + fruit taking amount), and N241 g and P are required to be added per macadimia nut tree per year according to the target yield of 35 kg/plant2O5 56g，K2O269 g. However, the soil in the south is slightly acidic, so that the lack of magnesium is easy to occur, and the potassium element and the magnesium have antagonistic action, so that the input amount of the potassium element is properly reduced, and the magnesium element can be absorbed by macadamia nut trees; in addition, because the macadimia nuts are root-row crops, the macadimia nuts have strong soil phosphorus excavation capacity, and the growth of fruit trees is adversely affected due to excessive phosphate fertilizer application, the phosphorus content in the compound fertilizer special for the macadimia nuts is obviously lower than that of other fertilizers.
Preferably, in the above technical scheme, in the compound fertilizer special for macadimia nuts, the ratio of N: p2O5：K2The weight ratio of O is 20: 4: 16, and said N, P2O5And K2The total nutrient content of O is 40%.
Specifically, the N component is prepared from one or more of ammonium sulfate, urea and diammonium phosphate.
In particular, said P2O5The components are calcium magnesium phosphate fertilizer and/or diammonium phosphate as raw materialsAnd (5) feeding.
In particular, the K2The O component is prepared from potassium nitrate and/or potassium chloride.
The invention also provides a package fertilizer special for macadimia nuts, which comprises a pre-flowering fertilizer, a fruit-retention and fruit-strengthening fertilizer, an oil content accumulation fertilizer and an after-fruit fertilizer, wherein the pre-flowering fertilizer, the fruit-retention and fruit-strengthening fertilizer and the oil content accumulation fertilizer are applied to the macadimia nuts in different growth periods, the pre-flowering fertilizer, the fruit-retention and fruit-strengthening fertilizer and the oil content accumulation fertilizer are the compound fertilizer special for the macadimia nuts in claim 1, the after-fruit fertilizer comprises an organic fertilizer, a micro-fertilizer and the compound fertilizer special for the macadimia nuts in claim 1, and N, P in the organic fertilizer2O5And K2The nutrient content of O is 0.18-0.23%, 0.018-0.030% and 0.31-0.37%, and the microelement fertilizer comprises borax, ferrous sulfate, magnesium sulfate and zinc sulfate heptahydrate in the mass ratio of (0.8-1.1): (8.5-12.4): 3.6-4.2): 1.9-2.15.
Because the soil in the macadamia nut planting area is slightly acidic, the deficiency of medium trace elements, especially magnesium elements, is easy to appear, and therefore the magnesium fertilizer is supplemented in the trace fertilizer; in addition, the boron element is beneficial to improving the fruit setting rate of the macadimia nuts, and the iron and the zinc are all trace elements necessary for the growth and development of the macadimia nut trees.
Specifically, taking Yunnan province as an example, the annual growth of macadamia nuts is flowering in 3 months, fruit expansion period in 4-5 months, fruit rapid growth in 6 months, oil accumulation period in 7-8 months, and fruit ripening in 9 months. According to the main growth period of the macadimia nuts, before blooming in 2 months, applying a pre-blooming fertilizer to ensure the nutrient requirement for normal blooming of fruit trees; after blooming, the macadimia nuts start to bear fruits, the fruits are enlarged in about 4-5 months, and the fruit-retaining fruit fertilizer is applied, so that the healthy growth of the fruits after bearing the fruits can be ensured; when the oil content of the fruits is accumulated in 7-8 months, nutrients are properly supplied to ensure that the oil content of the fruits is rapidly accumulated; the applied after-fruit fertilizer after fruit picking mainly has the functions of supplementing nutrient loss of fruit trees caused by fruit harvesting, and the crops of the organic fertilizer are slow in fertilizer, but can improve soil, promote healthier growth of the fruit trees and lay a foundation for flowering and fruiting of the fruit trees in the next year.
Preferably, in the above technical scheme, in the post-fruit fertilizer, the mass ratio of the organic fertilizer, the micro-fertilizer and the compound fertilizer special for macadamia nuts is (180-) -215): (16.5-18.2): (17-18.8).
Further, in the above technical scheme, the organic fertilizer is formed by crushing, composting and retting macadimia nut peel, and N, P in the organic fertilizer2O5And K2The nutrient content of O is 0.212%, 0.025% and 0.337%, respectively.
Further, in the technical scheme, in the micro-fertilizer, the mass ratio of borax, ferrous sulfate, magnesium sulfate and zinc sulfate heptahydrate is 1: 10: 4: 2.
the invention also provides a fertilizing method of the special package fertilizer for the macadimia nuts, which comprises the step of sequentially applying the pre-flowering fertilizer, the fruit retention and strengthening fertilizer, the oil content accumulation fertilizer and the post-fruit fertilizer to the macadimia nuts according to time.
The fertilizing method of the package fertilizer special for macadimia nuts comprises the following steps:
applying a pre-flowering fertilizer once before flowering (2 months) of the macadimia nuts, and applying 250-280g of fertilizer to each macadimia nut tree;
applying fruit-retention and fruit-strengthening fertilizer once in the fruit expansion period (at the end of 4 months or at the beginning of 5 months) of the macadamia nuts, and applying 420-450g of fertilizer to each macadamia nut;
applying one-time oil accumulation fertilizer to the macadimia nut in the oil accumulation period (7 months), and applying 250-280g of oil accumulation fertilizer to each macadimia nut tree;
applying a post-fruit fertilizer once after the harvest of the macadimia nuts (at the bottom of 9 months or at the beginning of 10 months), and applying 420-450g of a special compound fertilizer for the macadimia nuts, 4800-5200g of an organic fertilizer and 400-430g of a micro-fertilizer to each macadimia nut tree.
Further, in the technical scheme, the application mode is that a fertilizing ditch is excavated along a water dripping line of the tree crown, and after uniform application, soil is covered and watering is carried out.
Still further, in the above technical scheme, the cross-section of the fertilizing ditch is annular or semi-annular.
Still further, in the above technical scheme, the depth of the fertilizing ditch is 15-20 cm.
Still further, in the above technical scheme, the amount of watering is 15-20kg per plant.
Specifically, in the technical scheme, the package fertilizer special for the macadimia nuts is suitable for being applied to macadimia nut trees produced in Yunnan province and similar ecological climate areas.
Compared with the prior art, the invention has the following advantages:
(1) the nutrient proportion of the special compound fertilizer for the macadimia nuts is scientifically and reasonably designed according to the nutrient absorption characteristics of the growth and development of the macadimia nuts, and the nutrient requirements of the growth and development of the macadimia nuts can be met;
(2) the application amount of the special compound fertilizer for the macadimia nuts is designed according to the demand of the macadimia nuts, so that resource waste and environmental risks caused by excessive application of the fertilizer by macadimia nut planting farmers in China are avoided;
(3) the package fertilizer special for macadamia nuts and the corresponding fertilizing mode thereof can give play to the potential of efficiently utilizing nutrients of root systems, and effectively improve the utilization rate of the fertilizer;
(4) the micro-fertilizer in the special package fertilizer for the macadimia nuts provided by the invention supplements various medium and trace elements required by the growth and development of the macadimia nuts, can relieve medium and trace element deficiency symptoms and toxic symptoms of a great amount of macadimia nut orchards at present, and is beneficial to healthy tree construction and sustainable orchard construction.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to specific examples.
The following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.
The experimental procedures used in the following examples are conventional unless otherwise specified.
The raw materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Example 1
The embodiment of the invention provides a compound fertilizer special for macadimia nuts, which specifically comprises N components and P2O5Component (A) and (B)2O component, wherein, N: p2O5：K2The weight ratio of O is 20: 4: 16, and said N, P2O5And K2The total nutrient content of O is 40%.
Specifically, the N component is prepared from ammonium sulfate, urea or diammonium phosphate.
In particular, said P2O5The components are calcium magnesium phosphate fertilizer or diammonium phosphate as raw materials.
In particular, the K2The O component is prepared from potassium nitrate or potassium chloride.
Example 2
The embodiment of the invention provides a compound fertilizer special for macadimia nuts, which specifically comprises N components and P2O5Component (A) and (B)2O component, wherein N: p2O5：K2The weight ratio of O is 21.2: 3.75: 16.8, and said N, P2O5And K2The total nutrient content of O was 38.5%.
In particular, the N component, P2O5Component (A) and (B)2The specific starting materials for the O component were similar to those in example 1.
Example 3
The embodiment of the invention provides a package fertilizer special for macadimia nuts, which specifically comprises a pre-flowering fertilizer, a fruit-retention and fruit-strengthening fertilizer, an oil content accumulation fertilizer and an after-fruit fertilizer which are applied at different growth periods, wherein the pre-flowering fertilizer, the fruit-retention and fruit-strengthening fertilizer and the oil content accumulation fertilizer are the compound fertilizer special for the macadimia nuts provided in the embodiment 1, the after-fruit fertilizer comprises an organic fertilizer, a micro-fertilizer and the compound fertilizer special for the macadimia nuts provided in the embodiment 1, the organic fertilizer is formed by smashing, stacking and retting the macadimia nut peels, and the nutrient content of the organic fertilizer is N0.212%, P2O50.025％，K20.337% of O, wherein the micro-element fertilizer is prepared from the following components in percentage by mass of 1: 10: 4: 2 borax, ferrous sulfate, magnesium sulfate and zinc sulfate heptahydrate.
Further, in the post-fruit fertilizer, the mass ratio of the organic fertilizer to the micro-fertilizer to the compound fertilizer special for macadamia nuts is 5000: 425: 450.
specifically, the fertilizing method of the package fertilizer special for the macadimia nuts comprises the step of sequentially applying the pre-flowering fertilizer, the fruit retention and strengthening fertilizer, the oil content accumulation fertilizer and the post-fruit fertilizer to the macadimia nuts according to time.
In detail, the fertilizing method of the package fertilizer special for macadimia nuts specifically comprises the following steps:
applying a pre-blossom fertilizer once before flowering (2 months) of macadimia nuts and applying 250g per macadimia nut tree;
applying a fruit-retention and fruit-strengthening fertilizer once in the fruit expansion period (at the bottom of 4 months or at the beginning of 5 months) of the macadimia nuts, and applying 450g of the fertilizer to each macadimia nut tree;
applying one oil accumulation fertilizer per macadamia nut tree in the macadamia nut oil accumulation period (7 months);
after the macadimia nuts are harvested, applying post-fruit fertilizer once (9 month end or 10 month beginning), and applying 5875g of the post-fruit fertilizer for each macadimia nut tree, wherein the post-fruit fertilizer comprises 450g of the compound fertilizer special for the macadimia nuts, 5000g of the organic fertilizer and 425g of the micro-fertilizer.
Specifically, the application method is that a fertilizing ditch with an annular section and a depth of 15cm is excavated along the water dripping line of the crown of the macadamia nut tree, and after uniform application, soil is covered and 15-20kg of fertilizer is watered per plant.
Example 4
The embodiment of the invention provides a package fertilizer special for macadimia nuts, which is similar to the embodiment 3 in specific composition, fertilization method and application method, and is different from the embodiment 2 in that the used compound fertilizer special for the macadimia nuts is the compound fertilizer special for the macadimia nuts.
Comparative example 1
The invention provides a habitual conventional fertilization mode of macadimia nuts in comparative example 1, and specifically comprises the following steps of applying N: p2O5：K2The weight ratio of O is 15: 15: 15, fertilizing 3 times in a year, respectively fertilizing in the 2 months, the early 5 months and the 9 months, and fertilizing 1.8 kg/plant each time; the application mode is that the macadamia nut is uniformly spread under the macadamia nut tree.
Comparative example 2
The invention provides a package fertilizer special for macadimia nuts in a comparative example 2, and the specific composition, the fertilizing method and the applying method are all implementedExample 3 similarly, the difference is only that the compound fertilizer special for macadamia nuts is N: p2O5：K2The weight ratio of O is 15: 15: 15 and the application rate of the fertilizer is the same as that of example 3.
Comparative example 3
The invention provides a package fertilizer special for macadimia nuts in a comparative example 3, which is similar to the package fertilizer in the example 3 in specific composition, fertilization method and application method, and is different in that only a compound fertilizer is applied to a post-fruit fertilizer, the application amount is the same as that in the example 3, and the quality of the special compound fertilizer for the macadimia nuts in a pre-flowering fertilizer, a fruit-retention and fruit-strengthening fertilizer, an oil content accumulation fertilizer and the post-fruit fertilizer is the same as that in the example 3.
Comparative example 4
The invention provides a package fertilizer special for macadimia nuts, which is similar to the package fertilizer in example 3 in specific composition and fertilization method, and is different from the package fertilizer in that the package fertilizer is uniformly spread in a macadimia nut garden.
Effect test
A fertilizer efficiency verification test of the macadamia nuts is arranged in Jinghaxiang of Xishuangbanna in 2017 to 2018 for two consecutive years. The test was a randomized block test, and 6 groups were set, each group selecting 15 fruit trees of consistent age and substantially similar growth vigor, wherein groups A and B correspond to examples 3 and 4, respectively, and groups C, D, E and F correspond to comparative examples 1-4, respectively.
Results and analysis
1. Effect of macadamia nut fruit yield
As shown in table 1 below, by comparing field yield data of two years, in the first year of experimental arrangement, the fruit tree yield using the method of the present application for applying the fertilizer special for macadamia nuts only increased approximately 1kg per fruit tree on average, compared with all other fertilization methods including traditional fertilization, and there was no significant difference; in the second year, the yield of the fruit trees applying the special fertilizer for the macadamia nuts by adopting the method is greatly increased by about 38.6 percent compared with the yield of all other fertilizing methods; results show that the yield of the macadamia nut fruit tree can be effectively increased by applying the special fertilizer for the macadamia nuts.
TABLE 1 Effect of different treatments on macadamia nut fruit yield
2. Effect of macadamia nut fruit growth
In order to further explore the influence of the macadamia nut fruits on the macadamia nut fruits, the weight of each fruit, the transverse diameter of each fruit and the longitudinal diameter of each fruit in each group after two years of treatment were respectively detected.
Specific results are shown in table 2 below.
TABLE 2 Effect of different treatments on the fruit growth of macadamia nuts
The comparison shows that the fruit unit weight, the fruit grain diameter and the fruit longitudinal diameter of each treatment group in 2017 are not obviously different; in the second year, the single-grain weight of the fruit applied with the special fertilizer for macadamia nuts in the application mode is greatly increased compared with that of the fruit applied with other fertilization modes, and compared with the traditional fertilization mode (comparative example 1), the single-grain weight is increased by 39%, and the longitudinal diameter of the fruit is increased by 4%. Both increased grain size and increased individual grain weight of the fruit indicate increased size of the fruit, with larger fruits generally being more popular than smaller fruits in the market.
In conclusion, the analysis shows that the application of the special fertilizer for macadamia nuts and the application of the series of fertilization technologies recommended by the invention can effectively improve the yield of fruit trees, and in the second year of experimental arrangement, compared with the traditional fertilization, the yield of a single fruit tree is increased by more than 38.6%, the weight of a single fruit is increased by more than 39%, and the longitudinal diameter of the fruit is increased by more than 4%; the fertilizer special for the macadimia nuts can effectively promote the yield of the macadimia nut fruit trees to be increased and increase the sizes of the fruits.
Finally, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The package fertilizer special for the macadimia nuts is characterized by consisting of pre-flowering fertilizers, fruit retention and strengthening fertilizers, oil content accumulation fertilizers and post-fruit fertilizers which are applied to the macadimia nuts at different growth periods, wherein the pre-flowering fertilizers, the fruit retention and strengthening fertilizers and the oil content accumulation fertilizers are special compound fertilizers for the macadimia nuts, and the post-fruit fertilizers consist of organic fertilizers, micro-fertilizers and special compound fertilizers for the macadimia nuts;
the compound fertilizer special for macadimia nuts comprises N components and P2O5Component (A) and (B)2A component O, wherein the ratio of N: p2O5：K2The weight ratio of O is (18-21.5): (3.6-4.3): (15-17.2), and said N, P2O5And K2The total nutrient content of O is 36.6-43%;
n, P in the organic fertilizer2O5And K2The nutrient content of O is 0.18-0.23%, 0.018-0.030% and 0.31-0.37% respectively;
the micro-fertilizer comprises the following components in percentage by mass (0.8-1.1) to (8.5-12.4): (3.6-4.2) borax, ferrous sulfate, magnesium sulfate and zinc sulfate heptahydrate (1.9-2.15);
in the post-fruit fertilizer, the mass ratio of the organic fertilizer, the micro-fertilizer and the special compound fertilizer for macadamia nuts is (180) -215): (16.5-18.2): (17-18.8).
2. The package fertilizer special for macadimia nuts according to claim 1, wherein in the compound fertilizer special for macadimia nuts, the ratio of N: p2O5：K2The weight ratio of O is 20: 4: 16, said N, P2O5And K2The total nutrient content of O is 40 percent, the N component is prepared by taking one or more of ammonium sulfate, urea and diammonium phosphate as raw materials, and P is2O5The component is calcium magnesium phosphate fertilizer and/or diammonium phosphate as raw material, and K2The O component is prepared from potassium nitrate and/or potassium chloride.
3. The packaged fertilizer special for macadimia nuts as claimed in claim 1 or 2, wherein the organic fertilizer is formed by crushing, composting and retting macadimia nut peels, and N, P in the organic fertilizer2O5And K2The nutrient content of O is 0.212%, 0.025% and 0.337%, respectively.
4. The package fertilizer special for macadimia nuts according to claim 1 or 2, wherein in the micro-fertilizer, the mass ratio of borax, ferrous sulfate, magnesium sulfate and zinc sulfate heptahydrate is 1: 10: 4: 2.
5. the method for applying the package fertilizer special for macadamia nuts as claimed in any one of claims 1 to 4, wherein the application of the pre-blossom fertilizer, the fruit-preserving and fruit-strengthening fertilizer, the oil-content accumulation fertilizer and the post-fruit fertilizer to the macadamia nuts in sequence by time comprises the following steps:
applying a pre-flower fertilizer once before the flowering of the macadimia nuts, and applying 250-280g of fertilizer to each macadimia nut tree;
applying a fruit-protecting and fruit-strengthening fertilizer once in the fruit expansion period of the macadimia nuts, and applying 420-450g of fertilizer to each macadimia nut tree;
applying an oil accumulation fertilizer once in the oil accumulation period of the macadimia nuts, and applying 250-280g of oil accumulation fertilizer to each macadimia nut tree;
applying a post-fruit fertilizer once after the macadimia nuts are harvested, and applying 420-450g of the special compound fertilizer for the macadimia nuts, 4800-5200g of the organic fertilizer and 400-430g of the micro-fertilizer to each macadimia nut tree.
6. The fertilization method of claim 5, wherein the fertilization ditch is dug along a water dripping line of a tree crown, and after uniform application, soil is covered and watered.
7. Fertilizing method as in claim 6,
the section of the fertilizing ditch is annular or semi-annular;
and/or the depth of the fertilizing ditch is 15-20 cm;
and/or the amount of watering is 15-20 kg/plant.
8. The fertilization method of claim 6, wherein the macadimia nut-dedicated package fertilizer is applied to macadimia nut trees in production in Yunnan province and similar ecologic climatic regions.
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| CN113816804A (en) * | 2021-08-08 | 2021-12-21 | 韦兆堂 | Method for preparing fertilizer for macadamia nut in kernel oil accumulation period |
| CN113788726A (en) * | 2021-08-08 | 2021-12-14 | 韦兆堂 | Method for preparing fertilizer for balanced growth of macadamia nut in flower bud stage and fruit tree |
| CN115136836B (en) * | 2022-05-19 | 2024-01-09 | 广东生态工程职业学院 | Method for improving fruit character of macadimia nut 695 variety |
| CN115626841A (en) * | 2022-11-07 | 2023-01-20 | 云南云天化股份有限公司 | Preparation method of calcium-magnesium-rich citrate soluble phosphate fertilizer special for macadamia nuts |
| CN117142900B (en) * | 2023-09-14 | 2024-06-07 | 云南省热带作物科学研究所 | Preparation method of green tangerine peel organic fertilizer, preparation method of organic-inorganic compound fertilizer and application |
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