Method for deepening and fertilizing middle-low yield argil rice field plough layer

A ploughing layer, medium and low-yield technology, applied in the field of farmland soil improvement and soil fertility cultivation, can solve the problems of high silt content, weak self-regulating ability of water, fertilizer, gas and heat, and short tillage period, and achieves the optimal balance of fertilization and nitrogen fertilizer management. Effects of soil nutrients, improving the ability of white soil to retain fertilizer and water, and improving soil organic matter content

Inactive Publication Date: 2015-06-24
INST OF SOIL & FERTILIZER ANHUI ACAD OF AGRI SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] There are many obstacle factors in the white soil with shallow plow layer, which has a series of bad properties: low clay content, high silt content, silt-like accumulations, that is, white soil layer, imbalanced sand-stick ratio, lack of nutrients, poor soil fertility, The content of organic matter and available nitrogen, phosphorus and potassium is low, and trace elements such as zinc are deficient; the substitution amount is small, and the capacity of fertilizer retention and water storage is low; Weak self-regulation ability and poor stress resistance; weak soil heat preservation ability, tight soi...

Method used

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  • Method for deepening and fertilizing middle-low yield argil rice field plough layer
  • Method for deepening and fertilizing middle-low yield argil rice field plough layer
  • Method for deepening and fertilizing middle-low yield argil rice field plough layer

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Effect test

Embodiment 1

[0039] The application effect of a method to make the plowing layer deep and fertile in medium and low-yield white soil paddy fields——2012 field comparative experiment (Location: Luotang Township, Changfeng County, Anhui Province).

[0040] The soil used in the test is white clay paddy soil developed from Xiashu loess, with low organic matter, available nitrogen, phosphorus, potassium and zinc content, and the rice yield has been low and unstable for a long time, which is a typical medium-low yield paddy field.

[0041] A kind of method that makes the cultivated layer of medium and low-yield white soil paddy field become deep and fertile comprises following 6 operation steps:

[0042] (1) Straw returning to the field to improve the soil Before the wheat matures in May, select a medium-low-yielding white clay paddy field with uniform fertility and convenient irrigation and drainage in advance in a place with convenient local transportation, with an area of ​​about 2 mu. After t...

Embodiment 2

[0058] The effect of "thickening and fertile tillage layer technology" to improve fertilization and low-yield white soil

[0059] The method of improving low-yield white soil by applying "thick fertile plow layer technology" is the same as that in Example 1.

[0060] In this implementation example, Yandian Township, Feixi County, Anhui Province was selected as the test site, and the test soil was medium-low-yield white clay paddy soil developed in Xiashu loess, which is the main type of local low-yield field.

[0061] It can be seen from Table 4 that the application of the present invention-"thick fertile plow layer" technology, the thickness of the clay plow layer increases by 1.1 cm, the soil bulk density decreases by 6.4%, and the porosity increases by 3.85 percentage points. Paddy soil >2mm, 2-0.25mm and >0.25mm three particle size water-stable aggregates increased by 2.9, 1.1 and 3.9 percentage points respectively, with a relative increase of 9.3%, 2.5% and 5.2%; the smal...

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Abstract

The invention discloses a method for deepening and fertilizing a middle-low yield argil rice field plough layer in the hilly areas of south China. The technology for direct wheat straw field return for soil improvement, the technology for applying organic fertilizer, curing the plough layer and improving soil fertility, the technology for deeply ploughing soil to transform the bad soil structure of middle-low yield argil, the technology for applying a soil conditioner to neutralizing hazardous substances, the technology for rice optimization fertilizer application and nitrogenous fertilizer operation management for soil nutrient balance, the technology for improving the soil nutrient deficiency condition and recovering soil fertility through scientific crop rotation and the like are integrated.

Description

technical field [0001] The invention relates to the technical field of farmland soil improvement and soil fertilization, in particular to a method for making the cultivated layer of middle and low-yield white clay paddy fields deep and fertile. Background technique [0002] White soil is one of the five low-yield paddy soil types in southern my country, with a total area of ​​more than 10 million mu nationwide, mainly distributed in the south of Qinling-Huaihe River, the middle and lower reaches of the Yangtze River and slightly south of Anhui, Jiangsu, Zhejiang, Hubei and Henan provinces. In vast areas, the distribution of white soil soil is wider and the area is larger. Baitu people call it "Chengbaitu", "Dianban soil", "Yellow Baitu", "Qingbaitu", "Horse Gantu", etc. It mainly originated from the parent material of Xiashu loess, and the process of producing white soil is mainly the soil Affected by long-term leaching, rinsing, and lateral seepage of surface irrigation, dr...

Claims

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Application Information

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IPC IPC(8): A01B79/02
Inventor 李录久吴萍萍王家嘉樊洪金马连黄厚宽汪明云杨华张华郭海杨生华桂召贵
Owner INST OF SOIL & FERTILIZER ANHUI ACAD OF AGRI SCI
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