Water-saving and salt-controlling corn high-yield planting method

A high-yield planting and corn technology, applied in the fields of botanical equipment and methods, fertilization methods, land preparation methods, etc., can solve the problems of slow use process of salinized land, low utilization rate of salinized land, lagging development of planting industry, etc. Achieve the effect of increasing soil available nutrient content, improving water use efficiency, and promoting yield and nutritional quality.

Inactive Publication Date: 2015-12-02
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the lagging development of planting industry, low crop yield, slow use process of salinized land, low utilization rate of salinized land and slow soil fertility cultivation process caused by lack of water resources and soil salinization in the current semi-arid areas A series of practical problems, such as a water-saving and salt-controlling corn high-yield planting method

Method used

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  • Water-saving and salt-controlling corn high-yield planting method
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  • Water-saving and salt-controlling corn high-yield planting method

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Embodiment 1

[0026] Said salinized soil, that is: the total salt content is 2.0-3.5g / kg, the soil pH is 8.0-9.0, and the soil texture is clay loam; the area to which the salinized soil belongs is a continental monsoon climate, and the frost-free period is 138 days; In arid areas, surface water is scarce, and the average annual rainfall is less than 500mm.

[0027] The steps of leveling the salinized soil, mechanical plowing and ridging are as follows: use mechanical plowing to the surface soil, the plowing depth is 20cm, rake the soil clods to loosen the topsoil, so that the surface is flat without obvious ups and downs. Leaked tillage, no rubbish, increased soil moisture, and created a good soil structure of the plow layer; mechanically raised a large ridge on the platform, with a ridge width of 110cm and a ridge depth of 20cm.

[0028] The step of applying chemical fertilizers to increase soil available nutrients to salinized soil is: select chemical fertilizers urea, superphosphate and ...

Embodiment 2

[0034] In Erjingzi Town, Zhaozhou County, Daqing City, Heilongjiang Province, the salt content of the 0-20cm plow layer of salinized soil is 2.2g / kg-3.5g / kg; the pH is 8.02-9.0; the soil texture is clay loam; the organic matter content is 17.8g / kg; alkaline hydrolysis nitrogen 85.37mg / kg; available phosphorus 15.2mg / kg; available potassium 102.1mg / kg, choose 10 ridges and 20 extended meters for each test area, and set 3 repetitions. The planted crop is corn, the sowing period is early May 2013, and the harvest period is early October 2013. The control is the local conventional corn planting method. Location: Erjingzi Town, Zhaozhou County, Daqing City, Heilongjiang Province; the geographical location of the test area is 125°26′878" east longitude, 45°49'458" north latitude, and 150m above sea level; the test area is located in the hinterland of Songnen Plain, which belongs to the mainland It has a monsoon climate and a frost-free period of 138 days. It is a semi-arid area wit...

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Abstract

The invention provides a water-saving and salt-controlling corn high-yield planting method. According to the shortage of water resources of semi-arid areas, in order to improve the moisture utilization efficiency, increase the edibility yield of grain crops, namely corns, and reduce salinization obstacles of salinized soil, the water-saving and salt-controlling corn high-yield planting method comprises the following steps: carrying out land leveling on the salinized soil, and mechanically ploughing and ridging; applying a chemical fertilizer to the salinized soil so as to increase effective nutrients of the soil; after applying the chemical fertilizer to the soil, sowing corn seeds and uniformly covering soil; after sowing the corn seeds and rolling, removing in-field plant residues and mechanically paving a drip irrigation belt and laminating a film; uncovering the film at a corn elongation stage and simultaneously finish drip irrigation and urea topdressing; when the soil is dry, carrying out quantitative drip irrigation at proper time so as to ensure the formation of corn yield; after the corns are harvested, crushing stubbles and returning the crushed stubbles back to a field in situ. The water-saving and salt-controlling corn high-yield planting method has the advantages that the moisture utilization efficiency is improved and the water resources are saved; the yield of the corns is increased; the nutritional quality is improved; soil fertility culture of the salinized soil is accelerated and the salinization degree of the soil is reduced.

Description

technical field [0001] The invention belongs to the technical field of salinized land utilization and grain crop cultivation, and in particular relates to a water-saving and salt-controlling high-yield planting method for corn. Background technique [0002] Soil salinization and secondary salinization are one of the main problems of soil degradation in the world today. At present, there are 8.31×10 8 hm 2 Land is under stress from salinization, especially in arid and semi-arid regions. my country is a country that is relatively short of water resources, and its per capita water resources are 2210m 3 , which is only 1 / 4 of the world's per capita share, especially in saline soil areas in my country. At present, my country's water and soil resources can only guarantee 500 million tons of grain production capacity, which is far from meeting the huge demand of the growing population. At the same time, my country's energy shortage contradiction is becoming increasingly acute, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01B79/02A01C21/00
CPCA01B79/02A01C21/00A01G22/00
Inventor 孟庆峰张娟高巍马献发
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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