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Foliar fertilizer special for pineapples and application method thereof

An application method and foliar fertilizer technology, applied in the direction of fertilization method, application, fertilization device, etc., can solve the problems of low magnesium nutrient content, vigorous growth of pineapple, small stems, etc.

Inactive Publication Date: 2011-11-09
SOUTH SUBTROPICAL CROPS RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the calcium superphosphate in the foliar fertilizer contains too much free acid, it is easy to burn the pineapple leaves, thereby affecting its growth; and the proportion of nitrogen in these foliar fertilizers is too high, and the proportion of potassium is too low, causing the pineapple to flourish and the leaves to grow. Too long, with narrow leaves and small stems, which eventually lead to low fruit weight, which reduces pineapple yield
In addition, pineapple garden soil is prone to lack of medium and trace elements, such as magnesium, iron, zinc, boron, etc., especially the lack of soluble ferrous and replaceable magnesium in the soil will cause iron and magnesium deficiency in pineapple plants, and the lack of iron and magnesium will reduce Increased the chlorophyll content of pineapple leaves, thereby reducing the production of pineapple photosynthetic products, affecting pineapple growth and pineapple yield
However, the foliar fertilizer prepared by fruit growers hardly contains iron, zinc, and boron nutrients, and the content of magnesium nutrients is also low, which cannot meet the needs of pineapple growth and development.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The effective elements in the pineapple special-purpose foliar fertilizer in this example are as follows: nitrogen 30.0, phosphorus pentoxide 7.5, potassium oxide 21.0, magnesium oxide 6.0, ferrous iron 4.5, zinc 0.2, and boron 0.2. The effective elements in the fertilizer are provided by the following substances in sequence: urea, monoammonium phosphate, monoammonium phosphate, potassium sulfate, magnesium sulfate heptahydrate, ferrous sulfate monohydrate, zinc sulfate heptahydrate, and borax. The physical amount converted into commercial fertilizer or commercial preparation is selected from the following materials (special foliar fertilizer for every ton of pineapple produced): urea 362.8kg, monoammonium phosphate 79.8kg, potassium sulfate 245.9kg, magnesium sulfate heptahydrate 216.1kg, monohydrate Ferrous sulfate 80.0kg, zinc sulfate heptahydrate 5.1kg, borax 10.3kg.

[0029] Preparation method: the above-mentioned fertilizers are mechanically mixed and then granula...

Embodiment 2

[0033] The effective elements in the pineapple special-purpose foliar fertilizer in the present embodiment are nitrogen 35.0, phosphorus pentoxide 10.0, potassium oxide 19.6, magnesium oxide 6.5, ferrous 5.0, zinc 0.25, boron 0.25 in weight percent in terms of pure nutrients. The effective elements in the fertilizer are provided by the following substances in sequence: urea and monoammonium phosphate, monoammonium phosphate, potassium sulfate and potassium chloride, magnesium sulfate heptahydrate, ferrous sulfate monohydrate, zinc sulfate heptahydrate, and borax. The physical amount converted into commercial fertilizer or commercial preparation is selected from the following materials (special foliar fertilizer for every ton of pineapple produced): urea 389.1kg, monoammonium phosphate 98.6kg, potassium sulfate 108.5kg, potassium chloride 86.8kg, heptahydrate sulfuric acid Magnesium 216.8kg, ferrous sulfate monohydrate 82.3kg, zinc sulfate heptahydrate 5.9kg, borax 12.0kg.

[0...

Embodiment 3

[0038] The effective elements in the pineapple special-purpose foliage fertilizer in the present embodiment are nitrogen 20.0, phosphorus pentoxide 15.0, potassium oxide 32.0, magnesium oxide 4.0, ferrous 2.0, zinc 0.1, boron 0.1 in weight percent in terms of pure nutrients. The effective elements in the fertilizer are provided by the following substances in sequence: urea, monoammonium phosphate, monoammonium phosphate, potassium sulfate, magnesium sulfate heptahydrate, ferrous sulfate monohydrate, zinc sulfate heptahydrate, and borax. The physical quantity converted into commercial chemical fertilizer or commercial preparation is selected from the following materials (per 1 ton of pineapple special-purpose foliar fertilizer): urea 230.7kg, monoammonium phosphate 170.2kg, potassium sulfate 399.5kg, magnesium sulfate heptahydrate 153.5kg, monohydrate Ferrous sulfate 37.9kg, zinc sulfate heptahydrate 2.7kg, borax 5.5kg.

[0039] Preparation method: prepare according to the meth...

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PUM

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Abstract

The invention provides a foliar fertilizer special for pineapples and an application method thereof. The foliar fertilizer special for pineapples is prepared from the following effective elements metered by pure nutrient in percentage by parts: 20-40 parts of nitrogen, 3-40 parts of phosphorus pentoxide, 12-42 parts of potassium oxide, 4-12 parts of magnesium oxide, 2-10 parts of ferrous iron, 0.1-0.4 part of zinc and 0.1-0.4 part of boron. The foliar fertilizer special for pineapples is applied in the mode of leaf surface spraying or micro-belt spray irrigation and can obviously solve the problems of trace element deficiency and nutrient imbalance of the pineapples, promote the growth and the development of the pineapples and improve the output and the quality, wherein the output of the pineapples is improved by 16.0 percent, the fruit commodity rate is improved by 11.8 percent, and the content of soluble solid is improved by 7.9 percent. The foliar fertilizer special for pineapples is simple and convenient to prepare and apply, has low price and is beneficial to large-scale popularization and application.

Description

technical field [0001] The invention relates to fertilizer technology, in particular to a special foliar fertilizer technology for pineapple. Background technique [0002] Pineapple (Ananas comosus (L.) Merr) is native to tropical America and is the third and seventh largest tropical fruit in the world. my country's pineapple cultivation originated in the middle of the 16th century. Now my country has become the fourth largest pineapple producer in the world and occupies an important position in the world's pineapple production and trade. The pineapple industry is also becoming an important industry in my country's tropical and subtropical regions. Farmer income plays an important role. [0003] my country's pineapple is mainly planted in Leizhou Peninsula in Guangdong, Wanning in Hainan, Qionghai, Changjiang, southeastern Guangxi, Xishuangbanna in Yunnan, Dehong, Longhai in Fujian, Zhangpu and other hilly slopes (slope between 0°-35°). The soil texture of pineapple gardens...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00A01C21/00
Inventor 陈菁孙光明习金根石伟琦陆新华臧小平左雪冬
Owner SOUTH SUBTROPICAL CROPS RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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