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Water-saving cultivation method of foodstuff and feed maize

A cultivation method and corn technology, applied in the field of crop cultivation, can solve the problems of soil secondary salinization, rising groundwater level, low water use efficiency, etc., achieve the effect of slow change of soil temperature, increase ground temperature, and promote the absorption and utilization of water and fertilizer

Inactive Publication Date: 2013-01-02
GANSU AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In arid and semi-arid areas, traditional flood irrigation is often used for supplementary irrigation of grain and feed corn. The water use efficiency is low, causing the groundwater table to rise and the soil to become salinized.

Method used

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  • Water-saving cultivation method of foodstuff and feed maize

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A water-saving cultivation method for grain and forage corn, comprising the following steps:

[0026] 1) Set up at least three plots, each plot consists of 15 ridges, each ridge is 1100cm long, 60cm wide, and 20cm high; the spacing between plants on each ridge is 30cm; the row spacing is 40cm;

[0027] 2) A 150cm-wide water barrier is set between each plot in step 1), and a 40cm-wide irrigation ditch is set between each ridge;

[0028] 3) Use shed film to prevent seepage between the water isolation zones in step 2), cover each ridge in step 2) with agricultural mulch film, and cover the ditch between the ridges in step 2) with 4cm thick plastic film Corn stalks.

Embodiment 2

[0030] A water-saving cultivation method for grain and forage corn, comprising the following steps:

[0031] 1) Set up at least three plots, each plot consists of 15 ridges, each ridge is 1150cm long, 70cm wide, and 15cm high; the plant-to-plant spacing on each ridge is 35cm; the row spacing is 50cm;

[0032] 2) A 150cm-wide water isolation zone is set between each plot in step 1), and a 50cm-wide irrigation ditch is set between each ridge;

[0033] 3) Use shed film to prevent seepage between the water isolation zones in step 2), cover each ridge in step 2) with agricultural mulch film, and cover the ditch between the ridges in step 2) with 4cm thick plastic film Corn stalks.

Embodiment 3

[0035] A water-saving cultivation method for grain and forage corn, comprising the following steps:

[0036] 1) Set up at least three plots, each plot consists of 15 ridges, each ridge is 3000cm long, 65cm wide, and 18cm high; the plant-to-plant spacing on each ridge is 32cm; the row spacing is 45cm;

[0037] 2) A 150cm-wide water barrier is set between each plot in step 1), and a 45cm-wide irrigation ditch is set between each ridge;

[0038] 3) Use shed film to prevent seepage between the water isolation zones in step 2), cover each ridge in step 2) with agricultural mulch film, and cover the ditch between the ridges in step 2) with 4cm thick plastic film Corn stalks.

[0039] After the above steps are completed, the field water holding capacity of the soil is measured, combined with the calculation of the crop water demand model, etc., the full furrow irrigation quota for grain and feed corn is 4500 m 3 / hm 2 On this basis, the irrigation quotas W1 and W2 were respectivel...

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Abstract

The invention discloses a water-saving cultivation method of a foodstuff and feed maize. The method comprises the following steps of: 1) arranging at least three small areas, wherein each small area consists of 15 ridges and each ridge is 1,100 to 3,000cm long, 60 to 70cm wide and 15 to 20cm high; (2) arranging moisture isolation strips which are 150cm wide among the small areas in the step 1) and arranging irrigation ditches which are 40 to 50cm wide among the ridges; and 3) preventing leakage with greenhouse films among the moisture isolation strips in the step 2), covering an agricultural mulching film on each ridge in the step 2), and covering maize straw layers which are 4cm thick in the ditches among the ridges in the step 2). The method has the beneficial effects that: when the straw covering treatment on ridge film ditches is compared with the land farming treatment on ridge film ditches, the irrigation area is reduced, the soil moisture evaporation is reduced, the irrigation water utilization rate is improved, the soil moisture conservation effect is improved and the temperature and the humidity of soil are adjusted by covering the straws in the ditches, the growth and development of maize root systems are facilitated, and the absorption and utilization of water and fertilizer are promoted.

Description

technical field [0001] The invention belongs to the field of crop cultivation, and in particular relates to a water-saving cultivation method for grain and fodder corn. Background technique [0002] The shortage of water resources has become an important factor restricting the sustainable development of my country's agriculture and national economy. Since the "Ninth Five-Year Plan", agricultural water conservation has developed rapidly. However, compared with the national water shortage situation, the development speed and scale of agricultural water conservation are still lagging behind. According to reports, in 1995, the lower reaches of the Yellow River were cut off and irrigation water was insufficient, which reduced grain production in Shandong Province by 2.7 million tons; the drought in 1997 caused another 20 million tons of grain loss in China, which shocked scholars at home and abroad. In order to ensure the supply of food and other agricultural products, it is ne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01G13/02
Inventor 齐广平师尚礼潘菊梅李涛张彦洪汪精海石万里曾晓春张云亮
Owner GANSU AGRI UNIV
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