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Dryland farming and water-saving cultivation method for maize in arid cropland in loess plateau

A cultivation method and corn technology, applied in the fields of grain cultivation, botanical equipment and methods, plant growth regulators, etc., can solve the problems of aggravated soil secondary salinization, low water and nutrient utilization rate, and rising groundwater level, etc. To achieve the effect of optimizing the formulation of seed coating agent, improving water utilization rate and reducing water evaporation

Pending Publication Date: 2020-09-18
YULIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Corn is often supplemented by traditional flood irrigation in semi-arid areas. The water and nutrient utilization rate is low, the soil compaction is serious, the groundwater level rises in some areas, and the secondary salinization of the soil is intensified.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A dry farming water-saving cultivation method for maize in the loess dry area, comprising the following steps:

[0032] S1. Seed selection and treatment: select mid-to-late maturing, high-resistant varieties suitable for close planting, remove mold and impurities from corn seeds, spread them in the sun for 1-3 days, place them in the seed soaking liquid, soak them for 2-3 hours, remove them, and use them as seeds coating package;

[0033] S2. Fertilization for soil preparation: remove the previous root stubble and residual film, plow in autumn, with a depth of 20-35cm, and timely rake to preserve moisture, or deep plow before sowing in the next year, with a depth of 20-35cm, rake to preserve moisture, and apply 2500kg-3000kg of decomposed farmyard manure at the bottom / mu, pure N 8kg, P 2 o 5 8-10kg, K2O 10-15kg / mu;

[0034] S3, rotary tillage, drip irrigation belt laying, film covering, sowing:

[0035] In mid-to-late April, when the ground temperature at 5cm of ...

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PUM

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Abstract

The present invention relates to the technical field of maize cultivation and in particular to a dryland farming and water-saving cultivation method for maize in an arid cropland in loess plateau. Rotary tillage, drip irrigation tape laying, film mulching and seeding integrated operation is adopted, a narrow line is 40 cm wide, a wide line is 60 cm wide, ridges are formed in the wide row, a drip irrigation tape is laid, the ridges serve as rain collecting regions, furrows serve as planting regions, the slopes of the rain collecting ridges are 35 DEG, and the ridges are 30 cm high and are disposed in an east and west direction; mechanical hole sowing is performed, a degradable water-absorbing fiber ball is buried in each of front, rear, left and right sides of each hole, the hole spacing iskept at 24-27 cm, the sowing depth is kept at 3-4 cm, the line spacing in the furrows is kept at 40 cm, and the planting density is kept at 5000-5500 per mu; and the total ground is covered with a plastic film with the width of 120 cm and the thickness of 0.08 mm, the edge of the plastic film is fixed and pressed with soil so that the plastic film is prevented from being damaged by wind, film mulching is kept for 10 d, a mulching film clings to the ground or perforation is performed every other 50 cm in the furrows after rainfall. By using the dryland farming and water-saving cultivation method, the emergence rate and survival rate of seedlings may be increased, and meanwhile, the utilization efficiency of water may be remarkably increased.

Description

technical field [0001] The invention relates to the technical field of corn cultivation, in particular to a water-saving cultivation method for dry farming of corn in the loess dry area. Background technique [0002] Corn is the third largest crop in my country, and it is also an important source of forage and fodder for human meat, egg and milk production. The amount of corn per capita is regarded as one of the important indicators to measure the development of animal husbandry and people's living standards in a country or a region. my country is a country with a large population, and corn, as the most effective and flexible regulating variety, also shoulders the important mission of ensuring national food security. Corn is often supplemented by traditional flood irrigation in semi-arid areas. The water and nutrient utilization rate is low, the soil compaction is serious, the groundwater level rises in some areas, and the secondary salinization of the soil is intensified. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/20A01N63/50A01N63/30A01N43/653A01N31/02A01N37/46A01P21/00C05G3/00C05G5/20
CPCA01N31/02A01N37/46A01N43/653A01G22/20A01N63/30A01N63/50C05B7/00C05G3/00C05G5/20C05D1/00
Inventor 王小林张盼盼纪晓玲张雄
Owner YULIN UNIV
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