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Soil water and fertility retaining agent and preparation method thereof

A water-retaining, fertilizer-retaining, and water-retaining agent technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve problems such as nutrient loss, low fertilizer utilization, resource waste, etc.

Active Publication Date: 2013-06-19
领先生物农业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] my country is a traditional large agricultural country, using 7% of the world's land resources to feed 22% of the world's population. With the increase of my country's grain production, the consumption of chemical fertilizers has also increased sharply, especially in recent years. The contradiction between the amount of chemical fertilizer application and the low utilization rate of chemical fertilizers is increasingly evident. For example, in 2006, my country produced a total of 48.31 million tons of chemical fertilizers, and in 2010, my country's chemical fertilizer consumption reached 54.6 million tons. In field production, the seasonal utilization rate of nitrogen fertilizers in my country At 30% to 35%, the seasonal utilization rate of phosphate fertilizer is between 10% and 25%, and the seasonal utilization rate of potassium fertilizer is 35% to 50%. Waste of resources, but also cause lake eutrophication, groundwater pollution, air pollution and other environmental problems

Method used

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  • Soil water and fertility retaining agent and preparation method thereof
  • Soil water and fertility retaining agent and preparation method thereof
  • Soil water and fertility retaining agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment 1: the preparation of soil water and fertilizer retention agent

[0059] The implementation steps of this embodiment are as follows:

[0060] A. Using the pulverizer sold by Chint Machinery Factory under the trade name Chint, the gamma-polyglutamic acid biological water-retaining agent produced according to the technology disclosed in CN102417724B was crushed to 40 meshes, and then used under the trade name De Ruipu Oven Manufacturing Co., Ltd. Dry the dryer sold by Ruipu at a temperature of 100°C for 1.0 hour, and dry the γ-polyglutamic acid biological water-retaining agent until the water content is 3% based on the dry weight of the γ-polyglutamic acid biological water-retaining agent;

[0061] B. Use the pulverizer sold under the trade name Chint by Chint Machinery Factory to pulverize the raw humic acid powder and the zeolite powder adsorbent to 60 meshes respectively, and then use the dryer sold under the trade name Dripu by De Ruipu Oven Manufacturing C...

Embodiment 2

[0064] Embodiment 2: the preparation of soil water and fertilizer retention agent

[0065] The implementation steps of this embodiment are as follows:

[0066] A. Use the pulverizer sold by Taihang Machinery Equipment Co., Ltd. under the trade name Taihang to crush the γ-polyglutamic acid biological water-retaining agent produced according to the technology disclosed in CN102417724B to 80 mesh, and then use Zhonghuan Experimental Electric Furnace Co., Ltd. under the trade name Zhonghuan The dryer for sale is dried at a temperature of 90°C for 0.5 hours, and the γ-polyglutamic acid biological water-retaining agent is dried to a water content of 5% based on the dry weight of the γ-polyglutamic acid biological water-retaining agent;

[0067] B. Use the pulverizer sold by Taihang Machinery Equipment Co., Ltd. under the trade name Taihang to pulverize the zeolite powder, bentonite and attapulgite adsorbent to 150 mesh respectively, and then use the dryer sold by Zhonghuan Experimen...

Embodiment 3

[0070] Embodiment 3: the preparation of soil water and fertilizer retention agent

[0071] The implementation steps of this embodiment are as follows:

[0072] A. Use the pulverizer sold by Fangyuan Mining Machinery Factory under the trade name Fangyuan to crush the γ-polyglutamic acid biological water-retaining agent produced according to the technology disclosed in CN102417724B to 55 meshes, and then use the trade name Taisite Instrument Co., Ltd. to The drying machine sold by Site is dried at a temperature of 95°C for 0.8 hours, and the γ-polyglutamic acid biological water-retaining agent is dried to a water content of 4% based on the dry weight of the γ-polyglutamic acid biological water-retaining agent;

[0073] B. Use the pulverizer sold under the trade name Fangyuan by Fangyuan Mining Machinery Factory to pulverize the raw humic acid powder, zeolite powder, bentonite and attapulgite adsorbent to 80 meshes respectively, and then use the pulverizer sold by Test Instrument...

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Abstract

The invention relates to a water and fertility retaining agent and a preparation method thereof. The water and fertility retaining agent consists of a gamma-polyglutamic acid biological water retaining agent and one or more adsorbents selected from humic acid raw powder, zeolite powder, bentonite or attapulgite. The gamma-polyglutamic acid type water and fertility retaining agent provided by the invention can promote the absorption of nitrogen, phosphorus and potassium of green Chinese cabbage, and the yield increase rate of the green Chinese cabbage reaches 9.96%-15.61%; and simultaneously, the water and fertility retaining agent also plays a positive role in retaining nitrogen, phosphorus and potassium nutrients in soil, increasing organic matter contents in the soil, and retaining soil moisture. The gamma-polyglutamic acid type water and fertility retaining agent provided by the invention can improve the wheat yield on sandy ground and the kernels per spike and thousand kernel weight of component factors, and simultaneously when the gamma-polyglutamic acid type water and fertility retaining agent provided by the invention is applied, the soil organic matter, available nitrogen, available phosphorus, available potassium and moisture content in wheat paddocks are higher than contrast, thus showing good water and fertility retaining effects.

Description

【Technical field】 [0001] The invention relates to the technical field of agricultural chemicals. Specifically, the present invention relates to a γ-polyglutamic acid-type soil water and fertilizer retention agent, and also relates to a preparation method of the soil water and fertilizer retention agent. 【Background technique】 [0002] my country is a traditional large agricultural country, using 7% of the world's land resources to feed 22% of the world's population. With the increase of my country's grain production, the consumption of chemical fertilizers has also increased sharply, especially in recent years. The contradiction between the amount of chemical fertilizer application and the low utilization rate of chemical fertilizers is increasingly evident. For example, in 2006, my country produced a total of 48.31 million tons of chemical fertilizers, and in 2010, my country's chemical fertilizer consumption reached 54.6 million tons. In field production, the seasonal utili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
Inventor 李刘杰肖艳杜迎辉朱瑞艳徐志文王海涛
Owner 领先生物农业股份有限公司
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