A Comprehensive Cultivation Method for Improving Salt Tolerance of Millet in Saline-alkali Land

A cultivation method and saline-alkali land technology, which is applied in the comprehensive cultivation field of improving the salt tolerance of saline-alkali land millet, can solve the problems of low millet yield, lack of cultivation technology system, and easy return to salt, etc., and achieve the expansion of millet planting area and good yield stability , Improve the effect of salt tolerance

Active Publication Date: 2021-01-15
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, affected by poor soil in saline-alkali land, high saline-alkali content, and easy return to salt, the yield of millet is not high, and there is a lack of efficient technical systems for the cultivation of millet in saline-alkali land, and there are few reports on the cultivation of millet in saline-alkali land

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Test site: Kenli County, Dongying City.

[0042] Soil salinity: 0.30%.

[0043] Millet variety: Honggu 2000.

[0044] Experimental design: 400kg of organic fertilizers are used per mu, 21kg of resin-coated controlled-release nitrogen fertilizer (containing N43%, 90 days of controlled release period), 13kg of urea (containing N46%), superphosphate (containing P 2 o 5 18%) 33kg, potassium sulfate (containing K 2 (251%) 20kg, all are disposable application as basal manure; Plow the soil 35cm, select reed stalk for use, consumption is 3.0kg / m 2 , the depth of returning the core soil to the field is 30cm; the ground is leveled, and the large soil clods (<0.5cm) of the topsoil layer are broken; sow with a millet precision seeder, the sowing rate is 550g / mu, the row spacing is 35cm, and the sowing depth is 3-5cm; At the early stage (10 days after emergence), apply calcium solution, the concentration of calcium solution is 10mmol / L, and the dosage is 30L / mu; irrigate at the...

Embodiment 2

[0048] Test site: Kenli County, Dongying City

[0049] Soil Salt Content: 0.21%

[0050] Millet Variety: Golden Valley

[0051] Experimental design: 400kg of organic fertilizers were used per mu, 21kg of resin-coated controlled-release nitrogen fertilizers (containing N43%, and a controlled release period of 90 days), 13kg of urea (containing N46%), superphosphate (containing P 2 o 5 18%) 33kg, potassium sulfate (containing K 2 (251%) 20kg, all disposable application as basal manure; 35cm of plowed soil, select wheat straw for use, consumption is 3.5kg / m 2 , the depth of returning the core soil to the field is 25cm; the ground is leveled, and the large soil clods (<0.5cm) of the topsoil layer are broken; sow with a millet precision seeder, the sowing rate is 600g / mu, the row spacing is 35cm, and the sowing depth is 3-5cm; At the early stage (15 days after emergence), apply calcium solution, the concentration of calcium solution is 10mmol / L, and the dosage is 30L / mu; irriga...

Embodiment 3

[0055] Test site: Kenli County, Dongying City

[0056] Soil Salt Content: 0.17%

[0057] Millet variety: Jigu 16

[0058] Experimental design: 400kg of organic fertilizers are used per mu, 21kg of resin-coated controlled-release nitrogen fertilizer (containing N43%, 90 days of controlled release period), 13kg of urea (containing N46%), superphosphate (containing P 2 o 5 18%) 33kg, potassium sulfate (containing K 2 (251%) 20kg, all disposable application as basal manure; 35cm of plowed soil, select wheat straw for use, consumption is 3.0kg / m 2 , the depth of returning the core soil to the field is 30cm; the ground is leveled, and the large soil clods (<0.5cm) of the topsoil layer are broken; sow with a millet precision seeder, the sowing rate is 550g / mu, the row spacing is 35cm, and the sowing depth is 3-5cm; At the early stage (10 days after emergence), apply calcium solution, the concentration of calcium solution is 10mmol / L, and the dosage is 30L / mu; irrigate at the join...

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Abstract

The invention discloses a comprehensive cultivation method for improving salt tolerance of millet in a saline-alkali land. The method comprises the following steps: (1) variety selection is carried out based on the land: a planted millet variety is selected according to the soil salt content of the saline-alkali land; (2) soil treatment is carried out: plough pan is broken through deep tillage, straw returning to subsoil is carried out, and salt return to the soil is suppressed; (3) green fertilization is carried out: a slow / controlled release fertilizer and a bio-organic fertilizer are selected, the soil salt input is reduced, and amendment fertilization is carried out; (4) incremental sowing is carried out: the sowing amount is controlled at 550 to 600 g / mu; and (5) salt control management is carried out: a calcium solution is sprayed at a seedling stage and timely irrigation is carried out at jointing and heading stages. Through coordinated use of multiple technical means, high-efficiency cultivation of millet in the saline-alkali land can be realized, which is of great significance for realizing adjustment and optimization of the agricultural structure in the saline-alkali land, transforming the agricultural development mode and promoting the three-component planting structure in the saline-alkali land.

Description

technical field [0001] The invention relates to the technical fields of high-yield cultivation of millet and control and development of saline-alkali land, in particular to a comprehensive cultivation method for improving the salt tolerance of millet in saline-alkali land. Background technique [0002] Soil salinization is a major adversity limiting crop production worldwide, with approximately 950 million hectares of soil globally threatened by salinization, accounting for about 5% of the world's arable land, especially with the increasing trend of global warming, The problem of soil salinization in middle and low latitude regions is becoming more and more obvious. In particular, the coastal saline-alkali land in the Yellow River Delta has high soil saline-alkali content, high groundwater table, and easy to return to salt. Its development and utilization have become a top priority and cannot be delayed. [0003] As a characteristic miscellaneous grain crop, millet has play...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/20
CPCA01G22/20
Inventor 娄燕宏韩飞诸葛玉平宋付朋王会孙铭婕
Owner SHANDONG AGRICULTURAL UNIVERSITY
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