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地膜覆盖是烤烟栽培的一项新技术,今年我们在所内外设 烟栽培的一项新技术,今年我们在所内外设10个点进行试验,均比不覆膜的增产.据调查,覆膜对提高地温、疏松土壤、保水保肥,促进发育,防除杂草及减轻病虫害等方面都有较好效果.1.提高地温.我所实测,覆膜地表温度比对照增加4.3～15.6℃;5厘米地温增加5.3～15.3℃,10厘米地温增加6.7～12.0℃,15厘米地温增加4.C～6.4℃;20厘米增加3.5～6.0℃.增加了有效积温和土壤高温日数.
Film mulching is a new technology for flue-cured tobacco cultivation, this year we set up a new tobacco cultivation technology inside and outside this year, we set up 10 points inside and outside the pilot, than non-coated yield .According to the survey, To improve the ground temperature, soil loosening, water and fertilizer, to promote development, weed control and mitigation of pests and diseases and other aspects have a better effect .1 to improve the ground temperature.I measured, the film surface temperature increased 4.3 ~ 15.6 ℃ than the control; Centigrade temperature increased 5.3 ~ 15.3 ℃, 10 centimeters increased 6.7 ~ 12.0 ℃, 15 centimeters increase in ground temperature 4.C ~ 6.4 ℃; 20 cm increased 3.5 ~ 6.0 ℃. Increase the effective accumulated temperature and soil temperature days.