Method for preventing and treating agricultural non-point source pollution of sloping field

A technology for agricultural non-point source pollution and sloping land, which is applied in crop cultivation, agriculture and fruit tree fields, can solve the problems of low water and fertilizer utilization efficiency, low pollutant control efficiency, etc., to reduce the degree of non-point source pollution, good anti-pollution effect and easy operation. Effect

Active Publication Date: 2013-03-27
CHINA AGRI UNIV
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Problems solved by technology

[0008] Aiming at the deficiencies of research and invention in this field, the purpose of the present invention is to provide a chemical control synergistic antifouling technology for preventing and controlling agricultural non-point source pollution on sloping land, so as to overcome the low water and fertilizer utilization efficiency caused by the single application method in the prior art, and the pollution control inefficiency defect

Method used

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  • Method for preventing and treating agricultural non-point source pollution of sloping field

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Embodiment 1

[0029] The crop is chestnut, which is planted on the slopes of Huairou in the suburbs of Beijing, with a slope of 4.5-6°. The specific application method of the chemical control agent in this embodiment:

[0030] Step 1. Application of soil water retaining agent: Select polyacrylamide-acrylic acid cross-linked copolymer soil water retaining agent produced by Shandong Dongying Huaye New Material Co., Ltd. Apply in the early stage of fruit tree germination. When applying, dig pits between rows on both sides (or dig ring ditches around the fruit trees) at 1 / 3-2 / 3 of the vertical projection radius of the crown of each fruit tree, with a width, length, and depth of 30cm× 45cm×(40-60)cm, first fully mix it with soil (ratio: 1:60), put it into the ditch layer by layer, cover the upper layer with floating soil, and perform a full irrigation after the reagent is applied to ensure that the soil water retaining agent is fully absorb water. It is advisable to use 15-18kg / mu for more than...

Embodiment 2

[0039] The crop is apricot tree, which is planted on the slopes of Huairou in the suburbs of Beijing, with a slope of 6-8°. The specific application method of chemical control agents:

[0040] Step 1. Application of soil water retaining agent: Select polyacrylamide-acrylic acid cross-linked copolymer soil water retaining agent produced by Shandong Dongying Huaye New Material Co., Ltd. Apply in the early stage of fruit tree germination. When applying, dig pits between rows on both sides (or dig ring ditches around the fruit trees) at 1 / 3-2 / 3 of the vertical projection radius of the crown of each fruit tree, with a width, length, and depth of 30cm× 45cm×(40-60)cm, first fully mix it with soil (the ratio is 1:70), put it into the ditch layer by layer, cover the upper layer with floating soil, and perform a full irrigation after the reagent is applied to ensure that the soil water retaining agent is fully absorb water. It is advisable to use 14-16kg / mu for more than seven years o...

Embodiment 3

[0049] The crop is corn on the slopes of Miyun in the suburbs of Beijing, with a slope of 5-10°. Chemical control agent application method:

[0050] Step 1. Application of soil water-retaining agent: Select the polyacrylic acid potassium salt soil water-retaining agent produced by Beijing Hanli Miao New Technology Co., Ltd., and apply the soil water-retaining agent in furrows at the seedling stage of corn growth. The depth is 10cm, width 5cm, application rate 3kg / mu, fully mix the soil water-retaining agent (ratio 1:70) and then apply it, and cover the surface with soil after a sufficient irrigation.

[0051] Step 2, plant anti-transpiration agent application: select the plant anti-transpiration agent fulvic acid (FA) produced by Xinjiang Huitong Handilong Humic Acid Co., Ltd., and use a 300-fold dilution (mass ratio) for corn spraying. Spray for the first time in the early stage, and spray once every 30 days thereafter, and spray 3 times during the growth period, spraying a ...

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Abstract

The invention provides a method for preventing and treating the agricultural non-point source pollution of a sloping field, comprising the following step: applying chemical control agents to the agricultural crops in the sloping filed, namely applying 0.3-1.5kg of soil structure conditioner, 3-18kg of soil water-retaining agent and 1-3kg of plant anti-evaporation agent to the sloping field per mu. If the sloping field has the sloping angle of 5-10 degrees, 0.3-1kg of soil structure conditioner is applied to the sloping filed per mu, if the sloping field has the sloping angle of 10-15 degrees. 0.6-1.5kg of soil structure conditioner is applied to the sloping field per mu, and if the sloping filed has the sloping angle of more than 15 degrees, 1.0-2.0kg of soil structure conditioner is applied to the sloping field per mu. According to the method provided by the invention, a soil-crop system is taken as a whole pollution-prevention object, and the non-point source pollution is prevented and treated by adopting the technological means of chemical coordinated control, thus a better effect is achieved. Due to the adoption of the method, the purposes of reducing the application amount of the fertilizer and the pesticide, reducing the water and soil erosion of the slope and the loss of pollutants, preventing the deep leakage of the water and fertilizer, reducing the wasteful evaporation of crops, increasing the yield, conditioning and using the water and the fertilizer efficiently are achieved.

Description

technical field [0001] The invention belongs to the fields of agriculture, fruit trees and crop cultivation, and in particular relates to a method for applying chemical preparations. Background technique [0002] The vegetation coverage rate in the arid and semi-arid agricultural production areas in the north is low, the rainfall is unevenly distributed in time and space, and it is easy to cause serious soil erosion. In addition, the excessive use of agricultural fertilizers and pesticides, and extensive irrigation methods have caused low water and fertilizer use efficiency. , economic output ratio is not high, and the soil erosion type agricultural non-point source pollution caused by soil erosion has a serious adverse effect on crop quality and environmental ecological health. Agricultural non-point source pollution occurs along with surface hydrological processes. In the soil-crop system, water and fertilizer mainly pass through ①rainfall-runoff-erosion-surface loss, ②rai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/00
CPCY02P60/20
Inventor 杨培岭廖人宽任树梅李云开杨元辉化相国
Owner CHINA AGRI UNIV
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