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Dry land corn cultivation method

A corn cultivation and dryland technology, applied in the field of crop cultivation, can solve problems such as focusing on corn irrigation, and achieve the effects of improving adsorption and other properties, lowering pH value, and reducing soil salinity damage

Active Publication Date: 2021-12-31
SHANXI AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the method of prior art often pays attention to the irrigation problem of corn when planting corn in dry land, and ignores the impact of saline-alkali soil on corn

Method used

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  • Dry land corn cultivation method
  • Dry land corn cultivation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The present embodiment provides a kind of preparation method of soil conditioner, prepare according to the following method:

[0041] Described modified montmorillonite is prepared according to the following method:

[0042] Step 1. Add 4g of chitosan to 2L acetic acid solution to prepare a chitosan solution. Add 4g of crushed and sieved montmorillonite to the chitosan solution, stir at 60°C for 8h, and centrifuge until the supernatant The solution was neutral, and dried at 50°C for 18 hours to obtain chitosan@montmorillonite;

[0043] Step 2, adding 4g sodium lignosulfonate to 2L of ultrapure water to prepare sodium lignosulfonate solution, adding 4g chitosan@montmorillonite prepared in step 1 to sodium lignosulfonate solution, Stir at 50°C for 6h, after centrifugation, dry at 40°C for 12h to obtain sodium lignosulfonate@chitosan / montmorillonite;

[0044] Step 3, repeat the reaction of step 1-2 twice with sodium lignosulfonate / chitosan@montmorillonite, that is, repla...

Embodiment 2

[0047] The present embodiment provides a kind of preparation method of soil conditioner, prepare according to the following method:

[0048] Described modified montmorillonite is prepared according to the following method:

[0049] Step 1. Add 10g of chitosan to 2L acetic acid solution to prepare a chitosan solution. Add 6g of crushed and sieved montmorillonite to the chitosan solution, stir at 70°C for 6h, and centrifuge until the supernatant The solution was neutral, and dried at 60°C for 12 hours to obtain chitosan@montmorillonite;

[0050]Step 2, adding 10g of sodium lignosulfonate to 2L of ultrapure water to prepare sodium lignosulfonate solution, adding 6g of chitosan@montmorillonite prepared in step 1 to the sodium lignosulfonate solution, Stir at 60°C for 4h, and after centrifugation, dry at 60°C for 10h to obtain sodium lignosulfonate / chitosan@montmorillonite;

[0051] Step 3. Repeat the reaction of step 1-2 once with sodium lignosulfonate / chitosan@montmorillonite, ...

Embodiment 3

[0054] The present embodiment provides a kind of preparation method of soil conditioner, prepare according to the following method:

[0055] Described modified montmorillonite is prepared according to the following method:

[0056] Step 1. Add 12g of chitosan to 2L of acetic acid solution to prepare a chitosan solution. Add 5g of crushed and sieved montmorillonite to the chitosan solution, stir at 65°C for 7h, and centrifuge until the supernatant The solution was neutral, and dried at 55°C for 15 hours to obtain chitosan@montmorillonite;

[0057] Step 2, adding 12g of sodium lignosulfonate into 2L of ultrapure water to prepare sodium lignosulfonate solution, adding 5g of chitosan@montmorillonite prepared in step 1 into the sodium lignosulfonate solution, Stir at 55°C for 5h, and after centrifugation, dry at 55°C for 11h to obtain sodium lignosulfonate / chitosan@montmorillonite;

[0058] Step 3. Repeat the reaction of step 1-2 three times with sodium lignosulfonate / chitosan@mo...

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Abstract

The invention discloses a dry land corn cultivation method, and belongs to the technical field of crop cultivation. The cultivation method comprises the following steps: S1, seed treatment: performing screening to obtain high-quality corn, drying seeds in the sun, dressing the seeds with a seed coating agent, and airing the seeds in the shade; S2, soil preparation: removing field sundries, performing weeding, deeply ploughing the land, adding a soil conditioner and a base fertilizer, and then performing shallow ploughing; S3, ridging and sowing; S4, field management: performing irrigation, thinning, final singling and fertilization irrigation; and S5, pest control and timely harvesting. By means of the method, large-area planting of corn in dry land saline-alkali soil is achieved, and the corn yield is increased.

Description

technical field [0001] The invention relates to the technical field of crop cultivation, in particular to a method for cultivating dryland corn. Background technique [0002] Drought and water shortage seriously affect the planting of crops. Due to the bare topsoil in dry land planting, it leads to serious soil erosion, serious loss of water and nutrients, and the quality of cultivated land is declining day by day. Unreasonable farming methods have aggravated soil salinization, and saline-alkali soil has high pH, ​​high salt content, low nutrient availability in the soil, and poor physical and chemical properties of the soil, which affect the growth and development of crops. Because most of the soluble salt in the saline-alkali soil is sodium salt, the soil is heavy, the soil colloid is dispersed and emulsified, the air permeability is poor, it swells and becomes muddy when it encounters water, and it shrinks hard after dehydration, which seriously affects the germination of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00A01G22/20C01B33/40C09K17/40C09K101/00
CPCA01G22/20A01C21/005C01B33/40C09K17/40C09K2101/00
Inventor 冯瑞云梅超王慧杰宋倩娜郭秀卿
Owner SHANXI AGRI UNIV
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