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烟草塑料薄膜地面覆盖是一项新的栽培技术。我省烟区春季干旱少雨,气温较低,烟苗在大田前期生长缓慢。采用地膜覆盖,可以提高地温,保蓄土壤水分,加速有机物分解,增强根系吸水、吸肥能力,促进前期生长,使烟株前、后期协调生长,从而达到优质丰产的目的。一、地膜覆盖的效果据所内两年小区试验和所外一年示范结果表明,地膜覆盖栽培比不覆盖栽培在提高产量、改善品质、增加产值方面,具有明显的效果(表1)。从表1看出,地膜区烟叶产量比对照区仅
Tobacco plastic film ground cover is a new cultivation technique. The tobacco area in our province is arid and dry in spring, the temperature is low, and the tobacco seedlings grow slowly in the early days of the field. The use of plastic film mulching can increase the ground temperature, preserve the soil moisture, accelerate the decomposition of organic matter, enhance the root absorption and absorption capacity, promote the early growth, and make the tobacco plants coordinate and grow before and after the tobacco plant so as to achieve the goal of high yield and good yield. First, the effect of plastic film coverage According to the two-year plot test and the one-year demonstration results show that the film mulching cultivation than non-covered cultivation in improving yield, improve quality, increase output value, with significant results (Table 1). It can be seen from Table 1 that the yield of tobacco in the mulch is only higher than that in the control area