Effects of different plastic membrane mulching on sweetpotato yield and weed control
To control agricultural weed and explore the yield potential of sweetpotato,Shangshu 19 is uesd as test material and no plastic membrane mulching is taken as control,and 5 plastic membrane mulching treatments are set up to explore the effects of different plastic membrane mulching on the mortality of seeding after transplanting,yield of Shangshu 19 and weed control.The results show that plastic membrane mulching can extremely significantly re-duce the mortality of sweetpotato seedlings after transplanting,reduce weed levels and increase fresh sweetpotato yield(P＜0.01).Among them,plastic membrane with pure black and colors closed in 3 black and 2 white demon-strate the best effect on improving the livability of sweetpotato seedlings after transplanting,with the mortality as low as 3.14%and 3.92%respectively.Plastic membrane with colors of silver and black in two sides and pure black display the best weed control effect,with the weed control ratio as high as 73.76%and 73.52%respectively.Plas-tic membrane with colors closed in 3 black and 2 white and that of silver and black in two sides show the best yield increasing effects,with the yield increasing by 26.79%and 24.39%respectively.This study provides a high-yield cultivation method for planting sweetpotatoes in newly reclaimed wasteland and multi-weed fields.
Shangshu 19plastic membrane mulchingyieldweed control effect
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