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Cultivation method for improving yielding ability of seawater rice in saline-alkali land

A cultivation method and technology of saline-alkali land, applied in the field of cultivation of high-yield seawater rice in saline-alkaline land, can solve the problems of delayed rice growth period, high input cost, and large consumption, and achieve the purpose of increasing soil solidification particles, reducing fresh water consumption, improving The effect of physical and chemical properties

Inactive Publication Date: 2019-02-15
HUNAN HYBRID RICE RES CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the seawater rice tidal flat cultivation, due to the excessively high salinity, the rice growth period is delayed, the maturity is not good, the planting yield is low, a large amount of freshwater resources are consumed, and the input cost is high. Develop coastal tidal flats, reduce the salinity and alkalinity of saline-alkali land, improve the yield and quality of seawater rice, and thus obtain better economic and social benefits

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Water system construction: coastal tidal flat strips of 60m×200m, with main irrigation canals and main drainage canals set up at both ends of the strips. The main irrigation canals and main drainage canals are strictly separated, and series irrigation and rowing are strictly prohibited. The main drainage / irrigation canals are 2m deep and 2.3m wide. Set up ditches on both sides of the field. In the north-south direction, the depth of the ditch should be 1.5m and the width of the ditch should be 2m. The ditch on both sides of the field should be separated by irrigation and drainage; The ditch is in the same direction as the ditch, and the distance between each ditch is 5m; the waist moisture of the same specification is excavated every 50m, perpendicular to the direction of the ditch,

[0025] (2) Plowing and fertilizing in the empty season: After the rice is harvested, all the stalks should be crushed and returned to the field. For saline-alkali land with a salt conte...

Embodiment 2

[0034] (1) Water system construction: coastal beach strips of 60m×200m, with main irrigation canals and main drainage canals set up at both ends of the strips, the main irrigation canals and main drainage canals are strictly separated, stringent irrigation and rowing are strictly prohibited, and the main drainage / irrigation canals are 2.5m deep and 2.5m wide In the north-south direction, the depth of the trench should be 2.0m, and the width of the trench should be 2.5m. The trenches on both sides of the strip field should be separated by irrigation and drainage; the field should be excavated with a moisture diversion machine with a width of 40cm and a depth of 40cm. The ditch is in the same direction as the ditch, and the distance between each ditch is 10m; the waist ditch of the same specification is excavated every 50m, perpendicular to the direction of the ditch,

[0035] (2) Plowing and fertilizing in the empty season: After the rice is harvested, all the stalks should be c...

experiment example

[0044] In Cixi City, Zhejiang Province, a large area of ​​reclamation coastal flats is gradually being reclaimed for rice plantation. It has been determined that the average organic matter content of the seaside saline-alkali soil before the reclamation and planting of rice is 4.~6.1g / kg, the available nitrogen content is 30.0mg / kg, the available potassium content is 230.0~405.2mg / kg, and the available phosphorus content is 3.5~7.6mg / kg. The content is 4.8-4.9g / kg, the highest one is 20.0-30.0g / kg, the pH is 8.87, and the following methods are used for planting.

[0045] (1) Water system construction: coastal beach strips of 60m×200m, with main irrigation canals and main drainage canals set up at both ends of the strips, the main irrigation canals and main drainage canals are strictly separated, and series irrigation and rowing are strictly prohibited. The main drainage / irrigation canals are 2.3m deep and 2.4m wide In the north-south direction, the depth of the trench should b...

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Abstract

The invention relates to a cultivation method for improving the yielding ability of seawater rice in a saline-alkali land, and mainly belongs to the field of agricultural planting. The method comprises the following steps of water system construction->empty season tillage and fertilization->salt washing->specie selection->cultivation and better seedling->field flattening land preparation->reasonable close planting -> topdressing -> water layer management and the like, strict control is conducted in all aspects of the seawater rice cultivation process, comprehensive setting is conducted, the method can effectively improve the physical and chemical properties of saline-alkali soil, long-term rotation is conducted through the above methods, soil unity particles are increased, the method effectively inhibits salt, by means of fresh water salt washing after laminating, the method can significantly reduce the amount of fresh water used, through reasonable close planting, the application of humic acid organic fertilizers with solubility in citric acid is increased, the growth of the seawater rice is significantly improved, and the output per mu can reach 800 kilograms or above.

Description

technical field [0001] The invention relates to a cultivation method for improving the high-yield performance of rice in saline-alkaline seawater, and is particularly suitable for the high-yield cultivation method of rice grown in tidal flats. Background technique [0002] One-third of the land in the world is saline-alkali land, and there is also a large area of ​​saline-alkali land in my country, about 30 million hm2, mainly distributed in the northeast, north and northwest regions. The development and utilization of saline-alkali land for crop production is of great significance in the sustainable development of agriculture. Rice is a saline-alkali-tolerant crop, and it is also a pioneer crop in saline-alkali land in coastal areas. In the coastal tidal flat areas with relatively abundant water resources, planting salt-tolerant rice varieties can realize the agricultural utilization and development of saline-alkali land with rice to control waterlogging and rice to contro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/22
CPCA01G22/22
Inventor 齐绍武吴朝晖刘建兵吴俊
Owner HUNAN HYBRID RICE RES CENT
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