A kind of conservation tillage cultivation method

Abstract

The invention relates to a protective farming and cultivating method, which is characterized in that a bisection crop-grass intercropping subsoiling straw-returning technology is employed, namely, a small ridge of 70 cm is employed; crops and leguminous forages are intercropped, so that a seedling region and a leguminous forage region are formed; two-row bunch planting is employed in the seedling region; proper close planting can be employed in the seedling region; a pitch is 20-25 cm; two rows of the crops are planted at intervals; the crops are planted in a triangle manner. According to the protective farming and cultivating method, a bisection method is employed for translation every year; the crops and the leguminous forages are intercropped in the first year; straws are all applied into the seedling region after harvesting, the straws are mulched; the crops are planted in the previous leguminous forage region in the second year; the leguminous forages are planted in the previous seedling region in the first year; the crops are not planted in the region in which the straws are applied; after the straws are thoroughly decomposed for one year, the crops are planted, so that the influence of the current-year straw returning on the crop yield is prevented, and the complete straw returning treatment of soil can be realized within two years.

Description

technical field [0001] The invention relates to a new protective tillage cultivation method, in particular to a dichotomous grain-grass intercropping subsoiling straw returning method, which belongs to the crop cultivation cultivation method. Background technique [0002] At the beginning of the 20th century, due to human overcultivation, vegetation was severely damaged, resulting in a "black storm" that shocked the world. The "black storm" swept across the continental United States. grain fields were destroyed. However, where the soil surface is covered with straw and stubble, the topsoil is preserved. In 1942, the United States established the Soil Protection Bureau, which summed up and developed the conservation tillage method. At present, in the United States, Canada, and Australia, the traditional farming method of plowing and plowing has been basically canceled, and the protective tillage method supported by mechanization has been adopted on a large scale, and good r...

AI Technical Summary

Problems solved by technology

[0004] Traditional farming pursues intensive cultivation, but excessive soil processing will produce the following negative effects: damage to the soil aggregate structure, which is more likely to cause soil compaction; easy to kill soil beneficial organisms; aggravate the erosion of rain and wind on soil (soil erosion and wind erosion desertification); Tilling forms the bottom of the plow, which reduces the water storage capacity of the soil; reduces soil moisture and soil moisture resistance to evaporation; the bare plowed surface provides sand and dust sources for sandstorms; labor-intensive, time-consuming, and high cost

Images