Film-mulching planting method without seedling transplanting for graminaceous food crops in dry farming area

Abstract

The invention discloses a film-mulching planting method without seedling transplanting for graminaceous food crops in a dry farming area. The method comprises the steps that ridging is conducted, trenches are ditched closely to the two sides of the ridges, the trench depth is 3-4 cm, and artificial sowing in drill and artificial spaced sowing or mechanical sowing are conducted in the trenches; after sowing is completed, the trenches are filled with soil, the soil surface is as high as the trench surfaces, then the soil is patted or repressed, and the sowing trenches are tamped, so that no cracks, mud cakes and soil blocks exist in sowing rows, the soil and seeds are tightly pasted, the moisture loss in soil pores is reduced, and the seedling emergence is facilitated; after repression is finished, film mulching is conducted on the ridge surfaces, the film edges are pressed and tightly sealed with soil, and meanwhile, the mulching film above the sowing trenches is covered with soil with the thickness of 1-1.5 cm, and the thickness needs to be uniform and consistent, and the mulching film above the sowing trenches is prevented from being exposed. According to the method, the seedling transplanting is avoided, the production links are reduced, cost decrease and effect improvement are obvious, and the seedling emergence rate is extremely high; meanwhile, mulching film integrity, ground temperature regulation, drought resistance, soil moisture preservation, evaporation suppression and grass control are ensured.

Description

technical field [0001] The invention relates to the field of agricultural planting, in particular to a film-free seedling planting method for gramineous grain crops in dry farming areas. Background technique [0002] Pingliang City, located in the eastern part of Gansu Province, is a traditional commercial grain production area in Longdong, known as the "Longdong granary". The territory has a monsoon-type continental climate, with frequent natural disasters such as drought and cold. The annual average temperature is 8.5°C, the sunshine hours are 2298 hours, the annual precipitation is 554.2 mm, and the frost-free period is 159 days. It is a typical dry farming area, suitable for wheat, Cultivation of corn, sorghum, millet, broomcorn and other crops. Due to the weak agricultural infrastructure in this region, large differences in natural resources, and uneven distribution of precipitation in time and space, agriculture in the local area has not fundamentally gotten rid of th...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a method for planting gramineous grain crops without releasing seedlings under plastic film in dry farming areas, which breaks through the "bottleneck" problem of labor and effort in releasing seedlings in other plastic film cultivations, and effectively solves the difficulty in releasing seedlings in production and the problems caused by releasing seedlings. Seedlings cause damage to the mulch film, and many other practical problems mentioned above, the cost reduction and efficiency increase, and the comprehensive application effect are obvious