Tobacco mulching cultivation method

Abstract

The invention discloses a tobacco mulching cultivation method. The nitrogen application rate is 52.5 kg / hm<2>, the ratio of basal fertilizer and top-dressing is 7:3, N:P2O5:K2O is equal to 1:1:3, the basal application materials include 3000 kg / hm<2> of decomposed sesame cake fertilizer, 60 kg / hm<2> of ammonium nitrate, 80 kg / hm<2> of phosphatic fertilizer, 191.4 kg / hm<2> of potassium sulfate, 37.5 kg / hm<2> of zinc sulfate, and 22.5 kg / hm<2> of boric acid, the topdressing materials in the rosette stage include 37 kg / hm<2> of potassium sulfate and 84 kg / hm<2> of potassium nitrate. In the process of transplanting, 15 kg / hm<2> of potassium nitrate is applied in a nest mode, a plastic film is covered, the plastic film is uncovered in the former half period of June, and 7500 kg / hm<2> of wheat straws are covered after earth up until harvest is finished. The tobacco mulching cultivation method is capable of keeping appropriate soil moisture and heat conditions in the growth period of tobacco, enables the tobacco to form a layering and well-developed frame-shaped root system, and is favorable for coordination of water, fertilizer, air and heat of soil.

Description

technical field

[0001] The invention belongs to the technical field of agriculture, and relates to a mulching cultivation method of flue-cured tobacco, in particular to an integrated mulching cultivation technique of "front film and back straw" for producing flue-cured tobacco to extract potassium and reduce chlorine. Background technique

[0002] In recent years, dry farming techniques such as film mulching and straw mulching technology have become more and more common in China's tobacco production, which has played an important role in the development of tobacco production. But the current mulching technology is still relatively extensive, blindly mulching with plastic film, and lacking other supporting measures for management. In many areas, even in plain tobacco areas with good water conditions, it is common for tobacco fields not to uncover the film during the whole growth period. Premature aging is not conducive to the production of high-quality tobacco leaves. In te...