A kind of tillage method of tobacco field soil in sloping farmland

Abstract

The invention discloses a method for soil tillage of a tobacco field in a sloping farmland. The method comprises the steps of deep loosening, soil preparation, application of base fertilizer and ridging. According to the method, a mode of matching deep loosening tillage of soil with locating layered application of the base fertilizer is adopted, a trinitarian vertical distribution structure is formed by combining the position of a ridge body, the position of a deep loosening belt and the position of a base fertilizer strip, and therefore the moisture content of the soil of the sloping farmlandcan be effectively increased; soil nutrients are activated, and meanwhile the moisture storage capacity of the soil of the tillage layer of the sloping farmland is increased, so that early-generationand quick-growth of flue-cured tobaccos are promoted, and the growth and development of the flue-cured tobaccos in the robust growth period are facilitated; by means of the method, the thickness of the soil tillage layer of the tobacco field of the sloping farmland is increased, the obvious effects of breaking obstacles at plough pans, reducing the unit weight of the soil and improving the porosity of the soil are achieved, and especially the soil improving effect of the subsurface stratum is achieved; the method has the obvious effects of optimizing the spatial distribution configuration offlue-cured tobacco roots, improving the vigor of the roots in the mature stage and the field culturing durability and quality of tobacco leaves, increasing the yield of the tobacco leaves and the like.

Description

technical field [0001] The invention belongs to the technical field of flue-cured tobacco cultivation, and in particular relates to a method for cultivating soil in a tobacco field on a sloping farmland. Background technique [0002] At present, my country's tobacco leaf production is mainly distributed in mountainous tobacco fields. Taking Yunnan Province, Guizhou Province and Sichuan Province, the largest major tobacco producing areas in the country, as an example, in 2016, the transplanted area of ​​mountain tobacco accounted for 72.9%, 89.0% and 94.4% of the flue-cured tobacco transplanted area in the province respectively. According to the topography of tobacco fields, mountain tobacco fields can be divided into terraces and slope farmland, of which slope farmland is the main body of mountain tobacco production. Due to the long-term use of a single soil tillage mode such as shallow plowing or rotary tillage in slope farmland tobacco fields in China, the soil plow layer...

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Problems solved by technology

[0003] However, the imbalance of the plow layer structure seriously restricts the water storage and moisture storage performance of tobacco field soil, affects the early growth and rapid growth of flue-cured tobacco roots after transplanting, and hinders the vertical distribution of roots on the soil profile, resulting in difficulties in absorbing water and fertilizer in the late growth period of flue-cured tobacco and frequent premature root senescence. , affect the field tolerance of tobacco leaves, and even reduce the yield and quality of tobacco leaves

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