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| Effect of Different Full Biodegradation Film on Stem Lettuce Production |
| LI Shuifeng1，WANG Huaying1*，XU Chuchu1，FAN Zhengwei2，ZHONG Shuiliang3，HU Meihua4 |
1Xiaoshan District Agricultural Technology Extension Center of Hangzhou City，Hangzhou 311203，Zhejiang，China；
2Hangzhou Weiyou Agricultural Development Co.，Ltd.，Hangzhou 311241，Zhejiang，China；3Hangzhou Shuiliang Vegetable
Professional Cooperation，Hangzhou 311241，Zhejiang，China；4Agricultural Technology Extension Center of Zhejiang
Province，Hangzhou 310020，Zhejiang，China |
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Abstract Ten kinds of full biodegradation films with different specifications were introduced and tested
on stem lettuce production．Their effects on yield were studied．The results showed that except ‘Shanghai
black 6’，the other degradable films had no significant effect on stem lettuce yield comparing with the ordinary
polyethylene film．But there was the tendency of yield decreasing along with the decrease of film thickness．
The thinner the film thickness was，the faster the degradation rate was．The time duration for black degradation
film entering into induction period was generally earlier than that of the white one．Comprehensively seen from
film degradation status and stem lettuce yield，full biodegradation film‘ Yunnan white 10’ was the most suitable
film mulching for stem lettuce cultivation in early spring．
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Received: 15 April 2020
Published: 07 September 2020
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