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

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

Inactive Publication Date: 2013-07-03
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 conversion, hindering the improvement and restoration of the soil environment in saline-alkali land, or moving the bottom layer of the plow up, making the plow layer shallower , which can easily lead to premature senescence in the late growth period of rice

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] In the paddy field with mild saline-alkali soil in Qianguo County, after autumn harvest, when the soil moisture content is about 25%, plowing starts, and the operation is stopped when the ground reaches a frozen state. The plowing depth is 25-30cm; Rotate coarsely and level, rotate deeply 10-12cm, level the surface of the field; soak the field and wash the field 1-2 times, settle for 1-2 days and then transplant the seedlings.

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

Embodiment 2

[0022] In the paddy field with moderate saline-alkali soil in Zhenlai County, after the autumn harvest, the soil moisture content is about 30%, and the plowing is started, and the operation is stopped when the ground reaches a frozen state. The plowing depth is 18-25cm; Roughly flattened, turning 10-12cm deep, leveling the surface of the field; soaking the field and washing the field 2-3 times, settling for 1-2 days and then transplanting the seedlings.

[0023] Under the same conditions, the present invention can reduce the pH by 5.5-6.2%, the total salt content by 6.9%-14.5%, and increase the yield per mu by 9.3-17.3% compared with the conventional plowing method.

Embodiment 3

[0025] In the rice fields with severe saline-alkali soil in Da’an City, after the autumn harvest, when the soil moisture content is about 35%, plowing starts, and the operation is stopped when the ground reaches a frozen state. The plowing depth is 15-18cm; Flatten, turn 10-12cm deep, level the surface of the field; soak the field and wash the field 3-4 times, settle for 1-2 days and then transplant the seedlings.

[0026] Under the same conditions, the present invention can reduce the pH by 5.6-6.5%, the total salt content by 14.5%-16.5%, and increase the yield per mu by 26.3-39.2% compared with the conventional plowing method.

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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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Patent Type & Authority Patents(China)
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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