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Coastal saline-alkali soil dominant flow desalination fertile plough layer construction rice planting method

A technology with advantages of saline-alkali land, applied in the field of rice cultivation by desalination of fertile plough layers in coastal saline-alkali land, can solve problems such as rapid salt washing and coordinated optimal management of projects that do not involve saline-alkali land, and achieve the effect of increasing yield

Active Publication Date: 2021-11-30
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, patents such as "a comprehensive planting method of rice mulching in saline-alkaline land" use a layer of foreign soil, sand, or plastic film to press salt on the surface of the soil before planting rice, and deep layer of straw to separate salt and other agronomic and physical improvements to improve saline-alkali land. grows rice, but does not involve optimal fertilization of rice
For example, "a fertilization method to improve the nitrogen use efficiency of rice in coastal saline-alkali land", although the use of tillage, water soaking and washing of salt in the field has been used to optimize fertilization and planting of rice, but it does not involve rapid salt washing in saline-alkali land engineering, and dominant flow desalination of soil and water and fertilizer Salt collaborative optimization management for rice cultivation

Method used

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  • Coastal saline-alkali soil dominant flow desalination fertile plough layer construction rice planting method
  • Coastal saline-alkali soil dominant flow desalination fertile plough layer construction rice planting method
  • Coastal saline-alkali soil dominant flow desalination fertile plough layer construction rice planting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This example provides a method for constructing rice planting in coastal saline-alkali land with dominant flow desalinated fertile plow layer, including the steps of constructing salt washing project, constructing fertile plow layer, soil testing and fertilization, desalinating soil with dominant flow, and regulating rice planting with water, salt and fertilizer.

[0030] The construction of the salt washing project includes the steps of digging ditches and burying pipes in the field, the steps of building salt showers, the steps of building sand ditches and the steps of land leveling. Specifically, the step of digging trenches and burying pipes in the field is to dig several trenches in the field, each trench is 20cm wide, 60-70cm deep, and the distance between two adjacent trenches is 6-9m, and build a dark trench at the bottom of the trench. Or buried underground pipes, the construction of the underground ditch is at the bottom of the dug trench, the buried depth is 5...

Embodiment 2

[0048] In this embodiment, according to the method provided in embodiment 1, the following salt washing projects are constructed.

[0049] For the construction of the salt washing project, a PVC corrugated pipe with holes wrapped in non-woven fabric (aperture diameter 15mm, hole spacing 20cm), pipe diameter 11cm, buried depth 50cm, spacing 6m;

[0050] For the construction of the salt washing project, a PVC corrugated pipe with holes wrapped in non-woven fabric (aperture diameter 15 mm, hole spacing 20cm), pipe diameter 11cm, buried depth 50cm, spacing 9m;

[0051] The construction of the salt washing project is to bury PVC corrugated pipes with holes wrapped in non-woven fabrics (aperture diameter 15 mm, hole spacing 20cm), pipe diameter 11cm, buried depth 50cm, spacing 12m;

[0052] For the construction of the salt washing project, a PVC corrugated pipe with holes wrapped in non-woven fabric (aperture diameter 15 mm, hole spacing 20cm), pipe diameter 11cm, buried depth 70cm,...

Embodiment 3

[0064] In this embodiment, according to the method provided in Embodiment 1, the following fertile tillage layer is constructed.

[0065] The soil conditioner for constructing the fertile plow layer is humic acid, and its application rate is CK (contrast) with no humic acid applied;

[0066] The soil conditioner for constructing fertile plow layer is humic acid, and its application rate is 500kg·hm -2 for T1;

[0067] The soil conditioner for constructing a fertile tillage layer is humic acid, and its application rate is 1000kg·hm -2 for T2;

[0068] The soil conditioner for constructing fertile plow layer is humic acid, and its application rate is 1500kg·hm -2 for T3;

[0069] The soil conditioner for constructing fertile plow layer is humic acid, and its application rate is 2000kg·hm -2 for T4.

[0070] The soil for the test is Cixi coastal saline soil, and the soil salinity in the 0-20cm soil layer is 2.0 g·kg -1 , pH 8.05, organic matter 12.5g·kg -1 , Alkaline hydr...

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Abstract

The invention belongs to a saline-alkali soil improvement and crop cultivation technology, and particularly relates to a coastal saline-alkali soil dominant flow desalination fertile plough layer construction rice planting method. The method comprises the steps of salt leaching project construction, fertile plough layer construction, soil testing and fertilization, dominant flow soil desalination and water, salt and fertilizer regulation and control of rice planting. According to the method, on the basis of burying concealed pipes (ditches) and constructing sand ditches and salt spraying layers, measures such as straw returning and soil conditioner applying, plowing, deep scarification and flooding irrigation are implemented, soil dominant flow is created to leach soil salt, a plough layer is fertilized, soil desalination and construction of the fertile plough layer are achieved, rice planting is optimized, regulated and controlled through soil testing and fertilization and water-salt fertilizer, and the yield of rice is increased.

Description

technical field [0001] The invention belongs to saline-alkali land improvement and crop cultivation technology, in particular to a method for constructing rice planting by desalinating fertile plow layer with dominant flow in coastal saline-alkali land. Background technique [0002] my country's saline-alkali land area is large and widely distributed, mainly distributed in Northwest China, North China, Northeast West and coastal areas. The lack of fresh water resources limits the development of rice production. It is necessary to improve the saline-alkali land according to the characteristics of soil, water resources, climate, etc., determine the appropriate fertilizer type, fertilization amount, fertilization time and fertilization method, and explore a method of planting rice in saline-alkali land and managing water, salt and fertilizers to increase rice production and increase It is of great practical significance to improve the utilization rate of soil resources in salin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/22A01B79/02
CPCA01G22/22A01B79/02
Inventor 傅庆林刘琛郭彬裘高扬林义成李华陈晓冬刘俊丽
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES