Method for interplanting potato and corn in semihumid and semi-arid region

Abstract

The invention relates to the technical field of agricultural planting, in particular to a method for interplaning potato and corn in a semihumid and semi-arid region. The invention comprises selection of planting mode, planting variety test and planting method and is characterized in that the planting mode that high pole crop corn and low pole crop potato are interplanted is selected, the planting variety test comprises that planting contrast test is carried out on potato Lk99, Longshu3 and Longshu6 and corn rich peasant 1, Shendan 16 and Yuyu 22, and the planting method is a high-yield variety planting method used for determining the planting contrast test. In the method provided by the invention, the potato Lk99 and the corn rich peasant 1 are preferably selected, firstly seeds of the two crops are subjected to pre-treatments such as disease and insect pest prevention and pregermination, then soil preparation, fertilization, interplanting and field management are carried out, and then harvesting is carried out. The invention has the beneficial effects that adverse factors of ecological environment to agricultural production are overcome, the traditional agricultural production mode is changed, specific yield is improved, and increase in production and synergism can be realized.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, in particular to a planting method for interplanting potatoes with corn in semi-humid and semi-arid areas. Background technique [0002] In addition to the limited-scale irrigated agriculture in my country's semi-humid and semi-arid areas, it is mainly rain-fed agriculture that relies on natural precipitation, which is often called dryland agriculture. The reason why it is difficult for dryland farming to get rid of the passive situation of "constrained by the sky" is because of the influence of the climate resource system and the limitations of the traditional dryland farming model. According to relevant studies, in the arid and semi-arid areas of Northwest my country, the annual precipitation of 400-550mm, the water deficit rate of crops is 20%-40%; in the area of ​​250-400mm annual precipitation, the crop water deficit rate is as high as 40%. 70%. Moreover, the distribution of p...

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Problems solved by technology

[0003] Eastern Gansu is a typical semi-humid and semi-arid area, with arid climate, little rainfall, and poor soil. It is suitable for planting crops such as potatoes and corn. However, traditional agriculture is a single planting mode. Even if the interplanting mode is adopted, it is only in a small area. Empirical planting, lack of scientific basis, low land utilization rate, and unreasonable planting structure

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