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Anti-seepagesustained-release fertilizer for planting potato and preparation method thereof

A slow-release fertilizer, potato technology, applied in fertilizer mixture, application, fertilization device and other directions, can solve the problem of low utilization rate of water and fertilizer, and achieve the effect of good water retention, high efficiency, and easy purchase of raw materials

Inactive Publication Date: 2009-03-18
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of low utilization rate of water and fertilizer in sandy land at present, the present invention provides an anti-seepage slow-release fertilizer, the purpose of which is to build an environmentally friendly water-fertilizer coupling in sandy land by topdressing the anti-seepage slow-release fertilizer during the growth of potatoes system, improve the effective use of water and fertilizer, and achieve the dual effects of anti-leakage and slow-release fertilizer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] In a 500-liter reaction kettle, 3 parts of starch was weighed and dissolved in water based on 100 parts of the total weight of the material, and the temperature was raised to 90°C under stirring to completely dissolve. After cooling down to 60°C, 8 parts of humic acid and 2 parts of urea were added in sequence. 1 part, 25 parts of bentonite and 1 part of superabsorbent resin, continue to stir for 30 minutes, cool, discharge, and pack after inspection.

[0017] During the potato growth period, the prepared liquid fertilizer was applied to a single plant with a concentration of 0.08%, and the application rate was 2 liters. During the whole growth period, one time of irrigation can be saved, and the measured potato yield can be increased by 32%.

Embodiment 2

[0019] In a 500-liter reaction kettle, based on the total weight of the material as 100 parts, weigh 5 parts of starch and dissolve it in water, heat up to 90°C under stirring to completely dissolve, and then add 5 parts of humic acid and diphosphate in turn after cooling down to 60°C. 1 part of potassium hydrogen, 2 parts of bio-fermentation fertilizer, 10 parts of bentonite, 10 parts of attapulgite clay and 2 parts of superabsorbent resin, continue to stir for 30 minutes, cool, discharge, and pack after inspection.

[0020] During the potato growth period, the prepared liquid fertilizer was applied to a single plant with a concentration of 0.05%, and the application rate was 1.5 liters. During the whole growth period, one time of irrigation can be saved, and the potato yield can be increased by 35%.

Embodiment 3

[0022] In a 500-liter reaction kettle, based on 100 parts of the total weight of the material, 2 parts of phosphate starch were weighed and dissolved in water, and 5 parts of humic acid, 1 part of potassium dihydrogen phosphate, 2 parts of urea, and 12 parts of support stone and 1 part of superabsorbent resin, continue to stir for 30 minutes, then discharge, inspect and pack.

[0023] During the potato growth period, the prepared liquid fertilizer was applied to a single plant with a concentration of 0.06%, and the application rate was 1.8 liters. During the whole growth period, one time of irrigation can be saved, and the measured potato yield can be increased by 39%.

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PUM

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Abstract

The invention discloses an anti-seepage slow release fertilizer for potato planting and a preparation method thereof. The anti-seepage slow release fertilizer mainly comprises clay, starch, nutritional components and high water-absorption resin. A composite system has obvious functions of storing water, preventing seepage and slowing releasing the fertilizer in soil, greatly improves the utilization ratio of water and fertilizer, and increases potato yield in sandy soil by more than 50 percent. The anti-seepage slow release fertilizer has the advantages that the fertilizer is fast to take effect and easy to popularize, effectively solves the problem about the excessive infiltration of moisture in sandy land, and has obvious economic, social and ecological benefits when used in the sandy land.

Description

technical field [0001] The invention relates to an anti-seepage slow-release fertilizer for potato planting and a preparation method thereof, which can effectively improve the utilization rate of water and fertilizer. Background technique [0002] Potatoes are highly valued by the world due to their wide adaptability, complete nutritional content and long industrial chain, and have become an important part of global economic and trade. Potatoes are one of the high-yield economic crops and also one of the nutritious and healthy foods. The potatoes grown in the sand are especially favored by people. However, how to further increase the yield of sandy potatoes and obtain high-yield and high-quality potatoes has become the primary task to be solved. Due to drought and water shortage in Northwest China, the prerequisite for increasing potato production is to fundamentally solve the problem of effective use of water and fertilizer in potato planting. [0003] The plow layer soil...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 王爱勤宋宝兴杨效和杨奎
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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