Irrigating method and cultivating method of alfalfa

A cultivation method and technology of alfalfa, applied in the field of agricultural cultivation, can solve the problems of insufficient water-saving irrigation, waste of water resources, large evapotranspiration, etc., to save economic and labor costs, improve soil, and promote water and nutrients the absorption effect

Inactive Publication Date: 2019-10-01
GANSU RES INST OF AGRI ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the methods of irrigating alfalfa are mainly flood irrigation and sprinkler irrigation, among which flood irrigation will cause an extreme waste of water resources; although larger flood irrigation with sprinkler irrigation can achieve a certain purpose of water saving, but in the northwest region , the amount of evapotranspiration is large, and the amount of sprinkler irrigation is small, which will cause a large amount of sprinkler irrigation water to be evaporated before being absorbed by plants, which will not achieve the purpose of water-saving irrigation and waste water resources to a certain extent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Site selection

[0043] The relatively flat plots in the Shiyang River Basin were selected as alfalfa planting sites, with good soil structure, rich organic matter, deep soil layers, 0.2% to 0.3% salt content, sufficient water, and a pH value between 7.0 and 8.5.

[0044] (2) Soil preparation

[0045] After the plot is selected, shallow plowing and stubble removal and deep plowing are carried out sequentially in autumn. The depth of shallow plowing is 20cm, and the depth of deep plowing is 30cm. Before the soil freezes, enough winter water is poured, and the irrigation volume is 500m 3 / hm 2 In the spring, after the cultivation layer is dissolved, the processes of applying base fertilizer, spraying herbicides, insecticides, harrowing, compacting, and leveling are carried out in sequence, so that the soil is loosened up and down, so as to facilitate the emergence and growth of seedlings; and remove stones and weeds.

[0046] (3) laying drip irrigation belt

[0047...

Embodiment 2

[0063] (1) Site selection

[0064] The relatively flat land in the Shiyang River Basin was selected as the alfalfa planting land, with good soil structure, rich organic matter, deep soil layer, salt content of 0.2% to 0.3%, sufficient water, and pH between 7.0 and 8.5.

[0065] (2) Soil preparation

[0066] After the plot is selected, shallow plowing, stubble removal and deep plowing are carried out in autumn. The depth of shallow plowing is 20cm, and the depth of deep plowing is 35cm. Before the soil freezes, enough winter water is poured, and the irrigation volume is 500m 3 / hm 2 In the spring, after the cultivation layer is dissolved, the processes of applying base fertilizer, spraying herbicides, insecticides, harrowing, compacting, and leveling are carried out in sequence, so that the soil is loosened up and down, so as to facilitate the emergence and growth of seedlings; and remove stones and weeds.

[0067] (3) laying drip irrigation belt

[0068] Divide the complete...

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Abstract

The invention provides an irrigating method and cultivating method of alfalfa and belongs to the technical field of agricultural cultivation. The irrigating method comprises subsurface drip irrigation; a drip tape for the subsurface drip irrigation is 10-12 cm off the ground. The subsurface drip irrigation helps decease the evaporative transpiration quantity greatly so that water-saving irrigationis achieved, with no soil caking caused; seedling emergence rate and uniformity of alfalfa can be increased, and absorption of water and nutrients by the roots of alfalfa can be promoted. The drip tape is buried underground, so that surface operation and mechanized harvesting are facilitated. The cultivating method herein is applicable to mass saline-alkaline soil, abandoned land and the like, and water and soil retention, wind prevention and sand fixation can be achieved at the premise of improving soil and greening the environment.

Description

technical field [0001] The invention relates to the technical field of agricultural cultivation, in particular to an irrigation method and cultivation method for alfalfa. Background technique [0002] Alfalfa, as the "king of forage", is rich in protein, fiber and multivitamins, and is one of the first choices for forage. The Hexi region of my country is an important area for growing alfalfa. However, due to lack of water resources, strong sunlight, and large evapotranspiration in this area, it is very important to choose efficient irrigation methods to cultivate alfalfa. [0003] In the prior art, the methods of irrigating alfalfa are mainly flood irrigation and sprinkler irrigation, among which flood irrigation will cause an extreme waste of water resources; although larger flood irrigation with sprinkler irrigation can achieve a certain purpose of water saving, but in the northwest region , the amount of evapotranspiration is large, and the amount of sprinkler irrigation...

Claims

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Application Information

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IPC IPC(8): A01G25/00A01G22/00
CPCA01G25/00A01G22/00Y02A40/22
Inventor 赵玺周彦芳张亚萍张靖何友萍柳洋施志国张秀华张英英
Owner GANSU RES INST OF AGRI ENG TECH
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