Furrow drilling cultural technique of corps

Abstract

The invention relates to a crop planting technology, in particular to the planting technology for planting big rear crops in semiarid rain-fed agricultural region with high altitude but small annual rainfall. The technology of the invention is that: ditching and ploughing ridge in the leveled field, sowing seeds in side the ridge ditch after covering the ridge ditch and a ridgr platform with a mulching film. The invention, for forming the ridge platform covered by the mulching film outside the sewing ditch, can function as a water collecting surface to fully collect the rainwater and enable it flow into the ditch, thus can effectively collect rainwater and protection moisture in the soil, namely can largely reduce water loss and soil erosion as well as vaporization of moisture and sufficiently utilize the limit rainwater resource at the same time.

Description

technical field [0001] The invention relates to the planting technology of crops, especially for planting large and sparsely planted crops such as corn, potato, broad bean and oil sunflower in semi-arid rain-fed agricultural areas with high altitude and annual precipitation of 250-550mm technology. Background technique [0002] The semi-arid rain-fed agricultural area with an altitude of 2100-2400m and annual precipitation of 250-550mm has no available surface water and groundwater resources. The growth of crops depends entirely on natural precipitation. Drought is the main factor restricting local agricultural production. In semi-arid areas, precipitation is scarce, droughts occur frequently, and the distribution of time and space is very uneven. Most of the precipitation is concentrated in the three months from July to September, which is misaligned with the critical period of crop water demand. In semi-arid areas, due to spring drought, crops are often difficult to plant...

AI Technical Summary

Problems solved by technology

The main reasons are: the traditional mulching method of mulching film only partially covers the ground, and 1 / 3 to 1 / 2 of the ground in the field is still bare, the effect of warming is limited, and some crops are difficult to mature normally; in addition, the traditional mulching method is to Crops are planted on ridges, which can prevent long-term water accumulation in crop roots in areas with irrigation conditions and reduce the occurrence of diseases and insect pests. However, in semi-arid rain-fed agricultural areas without irrigation conditions, most of the rainwater flows along the ridges to the bare land , cannot fully enter the roots of the crops, causing local soil drought in the places where crops are planted under the ridge to become more aggravated. The utilization rate is very low, and the effect of increasing production is not obvious

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