CN110183262A - It is a kind of to split the foliar fertilizer of handle dehiscent fruit and its application in pineapple cultivation, foliar fertilizer spray for preventing pineapple - Google Patents

It is a kind of to split the foliar fertilizer of handle dehiscent fruit and its application in pineapple cultivation, foliar fertilizer spray for preventing pineapple Download PDF

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CN110183262A
CN110183262A CN201910483320.XA CN201910483320A CN110183262A CN 110183262 A CN110183262 A CN 110183262A CN 201910483320 A CN201910483320 A CN 201910483320A CN 110183262 A CN110183262 A CN 110183262A
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pineapple
foliar fertilizer
handle
dehiscent fruit
preventing
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CN110183262B (en
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常胜合
舒海燕
孙威
李科明
许桂莺
詹儒林
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Haikou Experimental Station of Chinese Academy of Tropical Agricultural Sciences
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Haikou Experimental Station of Chinese Academy of Tropical Agricultural Sciences
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C21/00Methods of fertilising, sowing or planting
    • A01C21/005Following a specific plan, e.g. pattern
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05CNITROGENOUS FERTILISERS
    • C05C1/00Ammonium nitrate fertilisers
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES 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
    • C05G5/00Fertilisers characterised by their form
    • C05G5/20Liquid fertilisers
    • C05G5/23Solutions

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pest Control & Pesticides (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Fertilizers (AREA)

Abstract

The foliar fertilizer of handle dehiscent fruit and its application in pineapple cultivation, foliar fertilizer spray are split for preventing pineapple the present invention relates to a kind of, belongs to technical field of fertilizers.Nutrient includes potassium element, calcium constituent, magnesium elements and boron element in foliar fertilizer of the invention;Potassium element, calcium constituent, magnesium elements and boron element mass ratio be 0.85~0.95:0.32~0.42:0.15~0.25:0.003~0.004.Of the invention is used to prevent the foliar fertilizer that pineapple splits handle dehiscent fruit, synergistic effect increases wall mechanical intensity between potassium element, calcium constituent, magnesium elements and boron element, foliar fertilizer of the invention is configured to foliar fertilizer spray to spray in pineapple slow growth period to during the now red phase, pineapple can be substantially reduced and split handle rate and Cracking fruit, 10 days especially after pineapple flower forcing, after flower forcing 20 days or existing red phase pineapple blade face is sprayed, pineapple can be split to the control of handle dehiscent fruit incidence within 1%.

Description

It is a kind of to split the foliar fertilizer of handle dehiscent fruit and its answering in pineapple cultivation for preventing pineapple With, foliar fertilizer spray
Technical field
The foliar fertilizer of handle dehiscent fruit and its application in pineapple cultivation, blade face are split for preventing pineapple the present invention relates to a kind of Fertile spray, belongs to technical field of fertilizers.
Background technique
The whole world pineapple gross area is more than 100 ten thousand hectares, is mainly distributed on Asia and Africa, the cultivated area in Asia is more than More than 40 ten thousand hectares, Chinese cultivated area is 70,000 hectares or so.2013, Chinese pineapple cultivation area occupied the 4th, the world, Yield occupies the 8th, the world.China pineapple producing region focuses primarily upon the ground such as Guangdong, Hainan, Yunnan, Guangxi, Fujian, wherein 84% Above cultivated area is even more to concentrate on Guangdong and Hainan.The cultivated area in Guangdong Province, pineapple cultivation the largest province is up to more than 60 ten thousand Mu, only Xuwen County just has more than 30 ten thousand mu of pineapple cultivation, more than 70 ten thousand tons of annual output.
Occur splitting handle dehiscent fruit phenomenon on a large scale sometimes in the production of China pineapple, brings serious financial consequences to peasant.It splits Handle dehiscent fruit is a kind of physiological disturbance, splits handle and is divided into horizontal cracking and vertical two kinds of cracking, horizontal cracking is manifested initially by, in circle Start symptom occur when the anthocaulus development of cone inflorescence is to 1-2 centimetres, the fruit display for splitting handle is that fruit is small, distorts and gives birth to one side It is long, it is shrivelled to occur fruit eye cracking, crown bud under serious conditions.It is relatively more that term adjusts this phenomenon under flower forcing.Dehiscent fruit then main table Now crack for core.The problem of handle is split for pineapple, Lu Ming etc. " apply calcium to ' platform agriculture 17 ' pineapple split handle physiological effect and Effect " in (plant physiology journal, 2018,54 (4): 565-573) respectively at fast growing period (RGP-II) flower forcing phase (FFP) and Existing red phase (SPP) three periods point, 3 blade sprayings, apply than being 2:1:1.The result shows that the Ca element of blade and carpopodium contains Measuring and splitting handle rate is in extremely significant negative correlativing relation, applies calcium pineapple can be significantly reduced and split handle rate, and apply calcium to spinach with the flower forcing phase The preventive effect that trailing plants splits handle is best, and the handle rate of splitting under the processing only has 7.65%, compared to not applying the 13.20% of Calcium treatment, reduces 42.04%.Nevertheless, 7.65% disease incidence still will cause very big loss for peasant.About pineapple dehiscent fruit The problem of, it has been reported that pineapple core cracking is mostly related to temperature, water management, prevention and treatment preferably uses fruit to stay hat tooth and avoid straight Solarization is connect, sprays calcium, magnesium, boron and microelement, Controlled irrigation period, and prevent windburn.But this report simultaneously not specifically discloses spray The type of microelement and each nutritive element content in fertilising material.
Summary of the invention
The object of the present invention is to provide a kind of foliar fertilizers that handle dehiscent fruit is split for preventing pineapple, can substantially reduce pineapple and split The disease incidence of handle dehiscent fruit.
The present invention also provides a kind of foliar fertilizer sprays that handle dehiscent fruit is split for preventing pineapple, can substantially reduce pineapple and split The disease incidence of handle dehiscent fruit.
The present invention also provides a kind of application of above-mentioned foliar fertilizer in terms of prevention pineapple splits handle dehiscent fruit, can substantially reduce Pineapple splits the disease incidence of handle dehiscent fruit.
In order to achieve the goal above, of the invention splits the technical solution that the foliar fertilizer of handle dehiscent fruit uses for preventing pineapple It is:
Split the foliar fertilizer of handle dehiscent fruit for preventing pineapple, the nutrient in the foliar fertilizer include potassium element, calcium constituent, Magnesium elements and boron element;Potassium element, calcium constituent, magnesium elements and boron element mass ratio be 0.85~0.95:0.32~0.42: 0.15~0.25:0.002~0.004.
Of the invention splits in the foliar fertilizer of handle dehiscent fruit for preventing pineapple, including potassium element, calcium constituent, magnesium elements and boron member The nutrients such as element.Wherein, calcium constituent is the important component of cell wall and intercellular layer, and cell wall is mainly by pectin, fibre Dimension element and hemicellulose composition, in the presence of calcium is with Calcium Pectate state, interconnecting between flanking cell acts on enhancing, is not easy Handle, dehiscent fruit are split, and the activity of enzyme can be influenced indirectly by influencing pH value in cell wall, to weaken the degradation of cell wall;Potassium Element is a variety of enzyme activators, participates in synthesis, transport and the conversion of sugar with starch, and keeping the normal object of plasm colloid Reason and chemical property play the role of vital;Magnesium elements can also enhance carefully in the presence of intercellular layer is in the form of pectic acid magnesium The effect of interconnecting of intercellular;Due to the sugar being formed on pectin or glycoprotein polymer hydroxyl borate can for calcium or Chelating of the magnesium on cell wall provides site, therefore micro boron element can also enhance intercellular connection effect indirectly. Each nutrient acts synergistically in pineapple growth course, is promoted by promoting the synthesis of cellulose, pectin and hemicellulose The growth of cell wall enhances wall mechanical intensity, reduces the generation for splitting handle and dehiscent fruit phenomenon.Foliar fertilizer of the invention is added into water Mixing is sprayed in pineapple slow growth period to during the now red phase after foliar fertilizer spray is made, and can be substantially reduced pineapple and be split handle Rate and Cracking fruit, 10~20 days or existing red phase spray pineapple blade face especially after pineapple flower forcing, can split pineapple Handle dehiscent fruit odds controls within 1%.
Preferably, the magnesium elements are from least one of magnesium sulfate, magnesium chloride, magnesium nitrate.
Preferably, the boron element is from least one of boric acid, Boratex.
Preferably, the potassium element comes from from potassium sulfate, the calcium constituent from calcium ammonium nitrate, the magnesium elements In magnesium sulfate, the boron element is from borax.Have using potassium sulfate, calcium ammonium nitrate, magnesium sulfate and borax as main component aobvious Enhancing plant cell wall mechanical strength is write, prevents plant from the advantages of splitting handle dehiscent fruit occur.
Of the invention splits the technical solution that the foliar fertilizer spray of handle dehiscent fruit uses for preventing pineapple are as follows:
The foliar fertilizer spray of handle dehiscent fruit is split for preventing pineapple, mainly by water and above-mentioned splits handle dehiscent fruit for preventing pineapple Foliar fertilizer composition;The mass ratio of potassium element is 100:0.4~0.9 in water and the foliar fertilizer.It is used for of the invention to prevent spinach Trailing plants splits the foliar fertilizer of handle dehiscent fruit and water mixes, and obtains foliar fertilizer spray of the invention.By foliar fertilizer spray of the invention in spinach Trailing plants slow growth period is sprayed to during the now red phase, can be substantially reduced pineapple and be split handle rate and Cracking fruit, especially in spinach 10~20 days or existing red phase spray blade face after trailing plants flower forcing, can significantly reduce the ratio that pineapple splits the generation of handle dehiscent fruit, and Pineapple is split into the control of handle dehiscent fruit odds within 1%, there is very high application value in pineapple cultivation.
In addition to water and above-mentioned foliar fertilizer in the composition of foliar fertilizer spray of the invention, can also be led comprising foliar fertilizer spray The common additive in domain such as adds at least one of surfactant, spreader-sticker, plant growth regulator.For example, the table Face activating agent is polysorbate esters surfactant;The plant growth regulator is fulvic acid, at least one in amine fresh fat Kind.Polysorbate esters surfactant such as polysorbas20, polysorbate60, Tween 80 etc. can be used as surfactant and be added. Surfactant and spreader-sticker can promote foliar fertilizer spray sprawling and adhere to, plant growth regulator on pineapple plant blade face It being capable of auxiliary adjustment pineapple plant strain growth.Added in foliar fertilizer spray conventional additive will not to wherein nutrient potassium, Calcium, magnesium and boron play the effect generation adverse effect that prevention pineapple splits handle dehiscent fruit.
Of the invention splits application use of the foliar fertilizer of handle dehiscent fruit in terms of prevention pineapple splits handle dehiscent fruit for preventing pineapple Technical solution are as follows:
It is above-mentioned to split application of the foliar fertilizer of handle dehiscent fruit in pineapple cultivation for preventing pineapple.
It is of the invention for prevent pineapple split the foliar fertilizer of handle dehiscent fruit in terms of prevention pineapple splits handle dehiscent fruit in application, energy It enough significantly reduces pineapple and splits handle Cracking fruit.Foliar fertilizer of the invention in pineapple cultivation in application, to pineapple carry out it is traditional just Normal water and fertilizer management.Under normal circumstances in traditional normal liquid manure management process, the time of infertility of pineapple, dose was respectively N per acre 52kg、P2O5 33kg、K2O 65kg, MgO 5kg, liquid manure integrally apply, while supplying water once at interval of 7~10d to pineapple.
Application of the above-mentioned foliar fertilizer in terms of prevention pineapple splits handle dehiscent fruit, is the foliar fertilizer prepared using the foliar fertilizer Spray sprays pineapple plant blade face before pineapple enters fast growing period and terminates to the existing red phase.
Split handle Cracking fruit to further decrease pineapple, it is preferred that by the foliar fertilizer spray 5 after the pineapple flower forcing phase~ 30 days or existing red phase are sprayed.
Handle Cracking fruit is split in order to further reduce pineapple, by the foliar fertilizer spray 10~20 days after the pineapple flower forcing phase Or the existing red phase is sprayed.
When spraying to pineapple plant blade face, the amount of spraying of the foliar fertilizer is calculated as with the quality of potassium element: 0.7~ 1.0kg potassium element/mu.When foliar fertilizer application is very few, it is difficult to preferable pre- anticracking handle dehiscent fruit effect is played, when amount of application is excessive, It is easy to cause toxic action to pineapple growth.
Detailed description of the invention
Fig. 1 is that pineapple splits the box of handle rate after the foliar fertilizer that different times apply the embodiment of the present invention 1 in embodiment 7 Figure;
Fig. 2 is that pineapple splits the box of handle rate after the foliar fertilizer that different times apply the embodiment of the present invention 1 in embodiment 8 Figure;
Fig. 3 is that pineapple splits the box of handle rate after the foliar fertilizer that different times apply the embodiment of the present invention 1 in embodiment 9 Figure.
Specific embodiment
The foliar fertilizer of handle dehiscent fruit is split provided by the present invention for prevention pineapple, the nutrient in the foliar fertilizer includes potassium Element, calcium constituent, magnesium elements and boron element;Potassium element, calcium constituent, magnesium elements and boron element mass ratio be 0.85~0.95: 0.32~0.42:0.15~0.25:0.002~0.004.
Preferably, the potassium element is from least one of potassium sulfate, potassium nitrate, potassium chloride.
Preferably, the calcium constituent is from least one of calcium ammonium nitrate, calcium chloride.
Preferably, the boron element is from least one of boric acid, Boratex.The Boratex is five four boron of hydration At least one of sour sodium, borax, anhydrous sodium tetraborate.
Below in conjunction with specific embodiment, further description of the technical solution of the present invention.
In following embodiment, Examples 1 to 3 is the embodiment for splitting the foliar fertilizer of handle dehiscent fruit for preventing pineapple, embodiment 4 ~6 be the embodiment for splitting the foliar fertilizer spray of handle dehiscent fruit for preventing pineapple.
Embodiment 1
Of the invention is used to prevent the foliar fertilizer that pineapple splits handle dehiscent fruit, is composed of the following parts by weight: ammonium nitrate Calcium (5Ca (NO3)2·NH4NO3·10H2O) 2 parts, potassium sulfate (K2SO4) 2 parts, magnesium sulfate (MgSO4) 1 part, borax (Na2B4O7· 10H2O) 0.03 part;Wherein the mass ratio of potassium element, calcium constituent, magnesium elements and boron element is about 0.90:0.37:0.20: 0.0034。
Embodiment 2
Of the invention is used to prevent the foliar fertilizer that pineapple splits handle dehiscent fruit, is composed of the following parts by weight: ammonium nitrate Calcium (5Ca (NO3)2·NH4NO3·10H2O) 1.73 parts, potassium sulfate (K2SO4) 2.11 parts, magnesium sulfate (MgSO4) 0.75 part, borax (Na2B4O7·10H2O) 0.035 part;Wherein the mass ratio of potassium element, calcium constituent, magnesium elements and boron element is about 0.95:0.32: 0.15:0.0040。
Embodiment 3
Of the invention is used to prevent the foliar fertilizer that pineapple splits handle dehiscent fruit, is composed of the following parts by weight: ammonium nitrate Calcium (5Ca (NO3)2·NH4NO3·10H2O) 2.25 parts, potassium sulfate (K2SO4) 1.90 parts, magnesium sulfate (MgSO4) 1.23 parts, borax (Na2B4O7·10H2O) 0.018 part;Wherein the quality of potassium element, calcium constituent, magnesium elements and boron element is about than for 0.85:0.42: 0.25:0.002。
It, can also be by embodiment 1 in the other embodiments for preventing the foliar fertilizer that pineapple splits handle dehiscent fruit of the invention Calcium ammonium nitrate in~3 replaces with calcium chloride, and potassium sulfate is replaced with potassium nitrate or potassium chloride, magnesium sulfate is replaced with magnesium chloride Or magnesium nitrate, borax replaced with into boric acid, five hydration sodium tetraborates or anhydrous sodium tetraborate, the foliar fertilizer with embodiment 1 is applied It is consistent with effect, it can play the role of prevention pineapple and split handle dehiscent fruit.In the leaf for splitting handle dehiscent fruit for preventing pineapple of the invention In the other embodiments of leaven, it can also be added often in the foliar fertilizer for splitting handle dehiscent fruit for preventing pineapple in Examples 1 to 3 The additive seen such as adds at least one of polysorbate esters surfactant, spreader-sticker, fulvic acid, amine fresh fat.Addition The usage amount of agent can be controlled according to the additive amount in conventional foliage fertilizer.
Embodiment 4
The present embodiment for preventing the foliar fertilizer spray that pineapple splits handle dehiscent fruit, by water and embodiment 1 for preventing spinach Trailing plants splits the foliar fertilizer composition of handle dehiscent fruit;Water and foliar fertilizer mass ratio are the 100:2.5 (mass ratio of potassium element i.e. in water and foliar fertilizer About 100:0.45).
Embodiment 5
The present embodiment for preventing the foliar fertilizer spray that pineapple splits handle dehiscent fruit, by water and embodiment 2 for preventing spinach Trailing plants splits the foliar fertilizer composition of handle dehiscent fruit;The mass ratio of water and foliar fertilizer is the 100:1.96 (matter of potassium element i.e. in water and foliar fertilizer Amount is than being about 100:0.4).
Embodiment 6
The present embodiment is used to prevent the foliar fertilizer spray that pineapple splits handle dehiscent fruit, is used in advance by water and in embodiment 3 Anti- pineapple splits the foliar fertilizer composition of handle dehiscent fruit;The mass ratio of water and foliar fertilizer is 100:5.65 (i.e. potassium element in water and foliar fertilizer Mass ratio be about 100:0.9).
Of the invention splits in the other embodiments of foliar fertilizer spray of handle dehiscent fruit for preventing pineapple, and foliar fertilizer spray may be used also It is living such as to add polysorbate esters surface for other additives outside foliar fertilizer to split handle dehiscent fruit comprising water and for preventing pineapple At least one of property agent, spreader-sticker, fulvic acid, amine fresh fat.Foliar Spraying agent and embodiment 4 after adding other additives Spray spraying effect it is consistent, can play the role of prevent pineapple split handle dehiscent fruit.
Embodiment 7~9 splits application of the foliar fertilizer of handle dehiscent fruit in pineapple cultivation for preventing pineapple for embodiment 4 Embodiment.In each embodiment, the foliar fertilizer of embodiment 1 in use, be according to the mass ratio of foliar fertilizer and water by foliar fertilizer The ratio of 2.5:100 is uniformly mixed and foliar fertilizer spray is made, then according to 5.03kg foliar fertilizer/per acre (with the quality of potassium element Meter, about 0.9kg potassium element/mu) the amount of spraying the blade face of pineapple plant is carried out spraying processing using foliar fertilizer spray.
Embodiment 7
The implementation of the present embodiment it is located at Hainan Province somewhere, which belongs to tropical monsson climate and marine climate, annual rainfall For 1279.10mm, year evaporation capacity be about 2.0-2.5 times of annual rainfall;Soil is to develop in the dry red soil on littoral sediment, Soil year samming is 24-25 DEG C, bulk density 1.32gcm-3, pH 5.01, organic matter 8.56gkg-1, alkaline hydrolysis nitrogen content 83.24mg·kg-1, available phosphorus content 121.33mgkg-1, available potassium 171.72mgkg-1, effective calcium 262.48mgkg-1, effective magnesium 56.59mgkg-1.As " platform agriculture 17 " pineapple seedling of objective for implementation, it is colonized within Mr. Yu on August 17, Yu Cinian September flower forcing on the 11st is harvested on March 15, in third.
Spray processing according to toeatment period set 7 processing (the pineapple plant of each processing the time of infertility only setting day Phase sprays once): slow growth period sprays (SGP, March 20 next year), the fast-growth I phase sprays (RGP-1, May 15 next year Day), the fast-growth II phase sprays (RGP-2, July 18 next year), urges 10d after Spraying in the flowering stage (FFP, next year September 15 days), flower forcing Spray 20d after (AFP-10, next year September 21 days), flower forcing spray (AFP-20, October 1 next year) the He Xianhong phase spray (SPP, it is secondary On October 28, in);As a comparison, being additionally provided with the time of infertility does not apply processing (CK).Each processing is all provided with 3 repetitions, often Duplicate block area is 2.70m × 10m, each duplicate block random alignment and pineapple routine fertilization and horticultural management and farm daily management Unanimously, the time of infertility, dose was respectively as follows: N 52kg, P per acre2O5 33kg、K2O 65kg, MgO 5kg, liquid manure integrally apply, It supplies water simultaneously at interval of 7-10d to pineapple primary.
The result shows that spinach can be greatly lowered to the foliar fertilizer for spraying the present embodiment 1 during the existing red phase in slow growth period Trailing plants splits handle rate and Cracking fruit, and 20d is sprayed after 10d sprays (AFP-10, next year September 21 days), flower forcing especially after flower forcing (AFP-20, October 1 next year) He Xianhong phase sprays (SPP, October 28 next year) and sprays the pre- anticracking handle dehiscent fruit of foliar fertilizer spray Effect is obvious, and handle rate average value and Cracking fruit average value are split after spraying all within 1%, wherein sprays within 20 days after flower forcing and splits handle rate Average value is controlled 0.2%.
Embodiment 8
It is located at Hainan Province somewhere to the implementation of the present embodiment, the Geothermal Belt monsoon climate and marine climate, annual rainfall are 1279.10mm, year evaporation capacity be about 2.0-2.5 times of annual rainfall;Soil is development in the dry red soil on littoral sediment, soil Earth year samming is 24-25 DEG C, bulk density 1.32gcm-3, pH 5.23, organic matter 8.66gkg-1, alkaline hydrolysis nitrogen content 84.56mg·kg-1, available phosphorus content 125.23mgkg-1, available potassium 17.32mgkg-1, effective calcium 264.56mgkg-1, Effective magnesium 55.98mgkg-1.As " platform agriculture 17 " pineapple seedling of objective for implementation, Mr. Yu field planting on April 3, Yu Cinian April 5 Day flower forcing is harvested on October 15, in third.
Spray processing according to toeatment period set 7 processing (the pineapple plant of each processing the time of infertility only setting day Phase sprays once): slow growth period sprays (SGP, November 20 current year), the fast-growth I phase sprays (RGP-1, January 15 next year Day), the fast-growth II phase sprays (RGP-2, March 18 next year), urges 10d after Spraying in the flowering stage (FFP, April 5 next year), flower forcing Spray 20d after (AFP-10, April 15 next year), flower forcing spray (AFP-20, April 25 next year) the He Xianhong phase spray (SPP, it is secondary On May 23, in);As a comparison, being in addition also provided with the time of infertility does not apply processing (CK).Each processing is all provided with 3 repetitions, every heavy Multiple area's area is 2.70m × 10m, each cell random alignment and pineapple routine fertilization and horticultural management and farm daily management one It causes, the time of infertility, dose was respectively as follows: N 52kg, P per acre2O5 33kg、K2O 65kg, MgO 5kg, liquid manure integrally apply, together When supply water at interval of 7-10d to pineapple it is primary.
The result shows that spinach can be greatly lowered to the foliar fertilizer for spraying the present embodiment 1 during the existing red phase in slow growth period Trailing plants splits handle rate and Cracking fruit, and 20d is sprayed after 10d sprays (AFP-10, April 15 next year), flower forcing especially after flower forcing (AFP-20, April 25 next year) He Xianhong phase sprays (SPP, May 23 next year) and sprays foliar fertilizer spray pre- anticracking handle dehiscent fruit effect Fruit is obvious, and handle rate average value and Cracking fruit average value are split after spraying all within 1%, wherein sprays control within 10 days after flower forcing and splits handle Effect is the most obvious, sprays within 10 days after flower forcing, and splitting handle rate is 0.
Embodiment 9
The implementation of the present embodiment it is located at Hainan Province somewhere, which belongs to tropical monsson climate and marine climate, annual rainfall For 1279.68mm, year evaporation capacity be about 2.0-2.5 times of annual rainfall;Soil is to develop in the dry red soil on littoral sediment, Soil year samming is 24-25 DEG C, bulk density 1.32gcm-3, pH 5.03, organic matter 8.76gkg-1, alkaline hydrolysis nitrogen content 85.77mg·kg-1, available phosphorus content 123.25mgkg-1, available potassium 17.21mgkg-1, effective calcium 266.71mgkg-1, effective magnesium 54.02mgkg-1.As " platform agriculture 17 " pineapple seedling of embodiment object, Mr. Yu field planting on June 10, in secondary Flower forcing on June 10, is harvested on December 15, in third.
Spray processing according to toeatment period set 7 processing (the pineapple plant of each processing the time of infertility only setting day Phase sprays once): slow growth period sprays (SGP, January 20 next year), the fast-growth I phase sprays (RGP-1, March 15 next year Day), the fast-growth II phase sprays (RGP-2, May 18 next year), urges 10d after Spraying in the flowering stage (FFP, June 11 next year), flower forcing Spray 20d after (AFP-10, June 20 next year), flower forcing spray (AFP-20, June 30 next year) the He Xianhong phase spray (SPP, it is secondary On July 20, in);As a comparison, being additionally provided with the time of infertility does not apply processing (CK).Each processing is all provided with 3 repetitions, every heavy Multiple area's area is 2.70m × 10m, each cell random alignment and pineapple routine fertilization and horticultural management and farm daily management one It causes, the time of infertility, dose was respectively as follows: N 52kg, P per acre2O5 33kg、K2O 65kg, MgO 5kg, liquid manure integrally apply, together When supply water at interval of 7-10d to pineapple it is primary.
The result shows that spinach can be greatly lowered to the foliar fertilizer for spraying the present embodiment 1 during the existing red phase in slow growth period Trailing plants splits handle rate and Cracking fruit, and 20d is sprayed after 10d sprays (AFP-10, June 20 next year), flower forcing especially after flower forcing (AFP-20, June 30 next year) He Xianhong phase sprays (SPP, July 20 next year) and sprays foliar fertilizer spray pre- anticracking handle dehiscent fruit effect Fruit is obvious, and handle rate average value and Cracking fruit average value are split after spraying all within 1%, wherein sprays control within 10 days after flower forcing and splits handle Effect is the most obvious, sprays within 10 days after flower forcing, and splitting handle rate is 0.
By embodiment 7~9 it is found that foliar fertilizer of the invention only once can in plant foliage-spray in the pineapple time of infertility Reduce the occurrence probability that pineapple splits handle dehiscent fruit.Pineapple everywhere in above-described embodiment 7~9 in reason splits handle rate and Cracking fruit difference See Tables 1 and 2.Pineapple according to each processing, which splits handle rate data and draws, respectively handles the box figure that pineapple splits handle rate in each embodiment, See Fig. 1~3.
Pineapple, which is respectively handled, in 1 embodiment 7~9 of table splits handle rate/%
Pineapple Cracking fruit/% is respectively handled in 2 embodiment 7~9 of table
Processing Embodiment 7 Embodiment 8 Embodiment 9
Slow growth period (SGP) 13 13 13
The fast-growth I phase (RGP-1) 12 12 12
The fast-growth II phase (RGP-2) 9 9 9
The flower forcing phase (FFP) 5 6 5
10d (AFP-10) after flower forcing 0.5 0 0
20d (AFP-20) after flower forcing 0.3 0.6 0.5
Existing red phase (SPP) 0.5 0.5 0.4
The time of infertility does not apply processing (CK) 23 23 23
The Foliar Spraying agent of embodiment 5 and embodiment 6 is distinguished according to the amount for spraying 0.7~1.0kg of potassium element per acre 10 days after the slow growth period of pineapple, fast-growth I phase, fast-growth II phase, flower forcing phase, catalysis, 20 days after catalysis, it is existing red Phase is sprayed, the effect of attainable pre- anticracking handle dehiscent fruit be consistent with embodiment 7~9.

Claims (10)

1. for preventing the foliar fertilizer that pineapple splits handle dehiscent fruit, it is characterised in that: the nutrient in the foliar fertilizer includes potassium member Element, calcium constituent, magnesium elements and boron element;Potassium element, calcium constituent, magnesium elements and boron element mass ratio be 0.85~0.95: 0.32~0.42:0.15~0.25:0.002~0.004.
2. as described in claim 1 for preventing the foliar fertilizer that pineapple splits handle dehiscent fruit, it is characterised in that: the magnesium elements come from In at least one of magnesium sulfate, magnesium chloride, magnesium nitrate.
3. as described in claim 1 for preventing the foliar fertilizer that pineapple splits handle dehiscent fruit, it is characterised in that: the boron element comes from In at least one of boric acid, Boratex.
4. as described in claim 1 for preventing the foliar fertilizer that pineapple splits handle dehiscent fruit, it is characterised in that: the potassium element comes from In potassium sulfate, the calcium constituent is from calcium ammonium nitrate, and the magnesium elements are from magnesium sulfate, and the boron element is from boron Sand.
5. for preventing the foliar fertilizer spray that pineapple splits handle dehiscent fruit, it is characterised in that: mainly used by water and as described in claim 1 The foliar fertilizer composition of handle dehiscent fruit is split in prevention pineapple;The mass ratio of potassium element is 100:0.4~0.9 in water and the foliar fertilizer.
6. as described in claim 1 split application of the foliar fertilizer of handle dehiscent fruit in pineapple cultivation for preventing pineapple.
7. as claimed in claim 6 split application of the foliar fertilizer of handle dehiscent fruit in pineapple cultivation, feature for preventing pineapple Be: the foliar fertilizer spray prepared using the foliar fertilizer pineapple enter fast growing period arrive the existing red phase terminate before pineapple is planted Strain blade face is sprayed.
8. according to claim 7 split application of the foliar fertilizer of handle dehiscent fruit in pineapple cultivation for preventing pineapple, special Sign is: by the foliar fertilizer spray, 5~30 days or existing red phase are sprayed after the pineapple flower forcing phase.
9. according to claim 8 split application of the foliar fertilizer of handle dehiscent fruit in pineapple cultivation for preventing pineapple, special Sign is: by the foliar fertilizer spray, 10~20 days or existing red phase are sprayed after the pineapple flower forcing phase.
10. splitting the foliar fertilizer of handle dehiscent fruit in pineapple cultivation for preventing pineapple according to any one of claim 7~9 In application, it is characterised in that: the amount of spraying of the foliar fertilizer is calculated as with the quality of potassium element: 0.7~1.0kg potassium element/mu.
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