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Water-retaining fertility-retaining fertilizer

A technology for water and fertilizer retention and fertilizer, which is applied in fertilizer mixtures, fertilization devices, agriculture, etc., and can solve problems such as weak capillary action, low humification coefficient, and poor soil water and water storage capacity

Inactive Publication Date: 2018-01-05
SICHUAN AGRI UNIV
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Problems solved by technology

Due to loose and unstructured sandy soil particles, small porosity, and weak capillary action, the soil has poor water and water storage capacity; at the same time, the decomposition rate of organic matter in sandy soil is fast and the humification coefficient is low, resulting in soil fertilizer storage. Poor, resulting in surface erosion and water loss

Method used

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experiment example

[0025] On May 16, 2016, in Waqie Township, Hongyuan County, Aba Prefecture, a sandy soil improvement test of water- and fertilizer-retaining fertilizers with bentonite and organic fertilizers as the main formula was carried out. According to the preparation method described in the present invention, the produced product Apply different application rates to sandy soil for application comparison.

[0026] A total of 4 application rate gradients were set up in the test: no application of CK (blank test), T 1 Apply 9t / hm 2 , T 2 Apply 18t / hm 2 , T 3 Apply 27t / hm 2 , and each treatment was repeated 3 times. The area of ​​the plot is 2m×5m, and there are 15 plots in total. The ryegrass is planted in the plot, the seed amount is 5kg / mu, and the sowing method is drill, with a spacing of 20cm. On August 15, 2016, measure the plant height of ryegrass, the length of the main root system, the dry matter of a single plant and the root-to-shoot ratio, and measure the water content of ...

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Abstract

The invention provides water-retaining fertility-retaining fertilizer. The water-retaining fertility-retaining fertilizer is prepared from the following components in percentage by mass: 20 percent to40 percent of calcium bentonite, 40 percent to 60 percent of organic fertilizer, 10 percent of water and 0.1 percent to 0.5 percent of compound fertilizer. According to the water-retaining fertility-retaining fertilizer disclosed by the invention, the content of organic matters of sandy soil can be effectively increased, and the decomposition rate of the organic fertilizer is reduced; supply of nitrogen, phosphorus and potassium nutrients of the soil also can be ensured, and the water-retaining fertility-retaining capability of the sandy soil is enhanced, so that an aim of improving the sandysoil is fulfilled.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a water- and fertilizer-retaining fertilizer. Background technique [0002] my country is one of the countries most seriously harmed by desertification in the world, and the phenomenon of land desertification is very serious. As of 2014, the results of my country's fifth desertification and sandification status monitoring show that the total area of ​​desertified land in the country is 2.6116 million square kilometers, accounting for 27.20% of the total land area; the total area of ​​desertified land in the country is 1.7212 million square kilometers, accounting for 17.93% of the total land area %. Sandy soil has loose particles, strong fluidity, and weak interaction between particles. Under the action of external forces such as water, gravity, and wind, it is easy to damage soil resources and land productivity. Due to loose and unstructured sandy soil particles, small...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
Inventor 刘晓林孔凡磊李玉义袁继超李鑫陈伟欧珠王兴龙吴雅薇
Owner SICHUAN AGRI UNIV
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