The Influence of Different Colors of Plastic Films on Growth and Development of Potato

Taking potato variety Helan No.3 as the test material,mulching black plastic film,green plastic film and common transparent film immediately after sowing,and the effects of different colors of plastic films on the warming,soil moisture and anti-grass in early spring,and the seedling quality and yield of potato phenology,harvest period were studied in serious weed cover point of Huludao Tashan Agricultural High-tech Park.The results showed that the order of warming effect of the different colors was transparent filmgreen filmblack film.3 kinds of plastic film mulching had obvious effect of soil moisture,and there was no significant differences in warming between black film and transparent film,which were slightly higher than that of green film.The weed control effects of black film and green film were 93.7% and 92.1%,respectively,which were significantly higher than that of transparent film,and the purpose of fully control the weeds without herbicides could achieved.The potato of mulching black film and green film with the characteristics of no late growth period,high quality of seedling,light weeds,good quality,high yield,tuber smooth and tidy,and the big tuber rate reached more than 80%,the yield was higher than that of transparent film by 7.0%-11.8%.