Method for quickly desalting, dealkalizing and ploughing soda saline-alkali paddy field

A soda saline-alkali land and paddy field technology, applied in the field of crop cultivation, can solve the problems that hinder the improvement and restoration of the saline-alkali soil environment, unfavorable soil maturation and nutrient conversion, and premature aging of rice in the later stage of growth, so as to improve the fragile ecological environment and reduce pests and weeds The occurrence and damage of damage, and the effect of promoting high yield

Inactive Publication Date: 2012-02-15
JILIN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention discloses a rapid desalination and alkali tillage method for paddy fields in soda saline-alkali land, which solves the disadvantages of traditional tillage methods that are not conducive to soil maturation and nutrient conversio

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 1

[0019] In the lightly saline-alkaline rice field in Qianguo County, after the autumn harvest, the soil moisture content will start tilling at about 25%, and the operation will be stopped when the ground reaches the frozen state, and the tilling depth will be 25-30cm; when the soil is frozen about 15cm in spring, the soil will be dry after applying the base fertilizer. Rotate rough and flat, with a rotation depth of 10-12cm, level the field surface; soak the field and wash the field 1-2 times, and plant the seedlings after precipitation for 1-2 days.

[0020] Under the same conditions, the present invention can lower the pH by 4.8~6.0%, the total salt content by 6.4%~16.9% and the yield per mu by 4.5~5.5% compared with the conventional land preparation method.

Example Embodiment

[0021] Example 2

[0022] In the moderate saline-alkali rice field in Zhenlai County, after autumn harvest, the soil moisture content will be about 30% and start tilling. When the ground reaches the frozen state, the operation will be stopped, and the tilling depth will be 18-25cm. When the soil is frozen about 15cm in spring, the soil will be dried after applying the base fertilizer. Rough and flat, with a rotation depth of 10-12cm, level the field surface; soak the field and wash the field 2 to 3 times, and plant the seedlings after 1 to 2 days of precipitation.

[0023] Under the same conditions, the present invention can lower pH 5.5~6.2%, total salt content 6.9%~14.5%, and increase yield per mu by 9.3~17.3% compared with conventional land preparation methods.

Example Embodiment

[0024] Example 3

[0025] In the heavy saline-alkali rice field in Da'an City, after the autumn harvest, the soil moisture content will be about 35%, and the plowing will be started until the ground reaches the frozen state. The plowing depth will be 15-18cm; when the soil thaws about 15cm in the spring, the soil will be dried after applying the base fertilizer. It is flat, with a rotation depth of 10-12cm, and the field surface is leveled; the field is soaked and washed 3 to 4 times, and the seedlings are transplanted after 1 to 2 days of precipitation.

[0026] Under the same conditions, the present invention can lower pH by 5.6~6.5%, total salt content 14.5%~16.5%, and increase yield per mu by 26.3~39.2% compared with conventional land preparation methods.

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PUM

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Abstract

The invention provides a method for quickly desalting, dealkalizing and ploughing a soda saline-alkali paddy field. The method comprises the following steps of: in the rice field after rice harvest in autumn, turning up the soil by using a big plough in autumn after base fertilizer is applied; sunning the upturned soil; rotating the soil in a dry mode in spring of the next year; ridging and soaking; leveling the field by using a thick rake until slurry is settled; and transplanting. In the method, spring soil turnup is replaced by autumn soil turnup; autumn soil turnup is combined with springsoil rotation; advantages of two tillage methods of rotary tillage and autumn soil turnup are utilized, advantages are absorbed and disadvantages are complemented, advantages are utilized and disadvantages are avoided, soil fertility is adjusted, and soil application and improvement are taken into consideration; and water resource is saved, saline and alkali are removed quickly, the soil structure is optimized, fragile ecological environment is improved, high yield, stable production and sustained development of rice in saline-alkali adverse situation are promoted. Rice is planted in the sodasaline-alkali land by the method, so the method is simple and easy in operation and convenient to popularize, labor and time are saved, production input cost is low, yield is increased obviously, repair of the fragile ecological environment is facilitated, and income of farmers is increased.

Description

technical field [0001] The invention discloses a rapid desalination and alkali plowing method for paddy fields in soda saline-alkali land, which improves the method for plowing and plowing inland soda saline-alkali paddy fields, and belongs to the technical field of crop cultivation. Background technique [0002] There are generally two forms of traditional farming methods. One is to directly irrigate the field with water and harrow the field after spring plowing. Due to the drought and windy spring, the temperature rises quickly, the air is dry, and the evaporation is large, which can easily lead to soil moisture loss and salt surface accumulation. Aggravation, thus increasing the water consumption of washing alkali in soaking fields; at the same time, due to the lack of dry and wet freezing and thawing in winter and spring in spring, it is not conducive to soil maturation and nutrient conversion, hindering the improvement and restoration of the soil environment in saline-al...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01B77/00
Inventor 赵国臣侯立刚齐春艳刘亮孙洪娇马巍隋鹏举郭晞明李保柱付胜王瑶
Owner JILIN ACAD OF AGRI SCI
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