Infiltrating irrigation water-saving planting method for medicago sativa in dry farming area

Abstract

The invention relates to the technical field of agricultural planting and cultivation, in particular to an infiltrating irrigation water-saving planting method for medicago sativa in a dry farming area. By utilizing an underground infiltrating irrigation principle, the problems of quick moisture evaporation, difficulty in topdressing, non-uniform irrigation and the like in a traditional irrigationmode are solved. The infiltrating irrigation water-saving planting method comprises the following steps: (1) engineering transformation is conducted, specifically, engineering transformation is conducted on a farmland, and an infiltrating irrigation system is arranged in the farmland; (2) land leveling is conducted, specifically, after infiltrating irrigation pipes are laid, the soil moisture content is supplemented to an appropriate sowing degree in a conventional border irrigation mode, then a conventional rotary cultivator is used for rotary tillage, and the rotary tillage depth is 20 cm;(3) seed pretreatment is conducted, specifically, the seeds are cleaned, subjected to impurity removing and aired in the sun for 1-2 days; (4) medicago sativa is planted; (5) field management is conducted; (6) weed treatment is conducted; (7) pest control is conducted; and (8) the medicago sativa is mowed, specifically, starting from the next year of planting, the medicago sativa is mowed four times every year, each crop of medicago sativa is started to be mowed in the initial flowering stage, the stubble height is about 4-6 cm, and the stubble height of last mowing is 7-8 cm.

Description

technical field [0001] The invention relates to the technical field of agricultural planting and cultivation, in particular to a water-saving planting method of alfalfa in a dry area. Background technique [0002] With the increase of the state's support for animal husbandry, alfalfa cultivation has received more and more attention. Most scholars have carried out a lot of work on the introduction of new varieties of alfalfa, cultivation techniques, processing and soil improvement. Studies have shown that in rain-fed and dry-fed areas, spring drought is the main factor restricting the yield of alfalfa. In addition to affecting plant growth, it will also cause some difficulties in topdressing alfalfa. Therefore, how to use the existing conditions to decipher the water barrier factors in the process of alfalfa production is the key point of alfalfa cultivation in dryland areas. [0003] At present, the following modes are mainly used for alfalfa cultivation: [0004] 1. Adop...

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Problems solved by technology

[0008] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a water-saving planting method for alfalfa in a dry farming area that utilizes the principle of underground irrigation to solve the problems of rapid water evaporation, difficulty in topdressing fertilizers, and uneven irrigation in traditional irrigation methods.

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