The Effects of Mulching with Biodegradable Plastic Films on Soil Moisture and Thermodynamics as well as Maize Yield
LIU Rui
SUN Shijun
ZHANG Wangwang
CHEN Zhijun
ZHANG Xudong
ZHU Kunlun
Abstract：Three field experiments were conducted in a rain-fed maize field in northeast China, two of which were mulched by the biodegradable plastic film(M1)and the common plastic film(M2),and the other one was without mulch (CK).The results showed that soil temperature at depth of 5, 10, 15, 20 and 25 cm in M1 was higher than that in M2 and CK during seedling and jointing,while there was no significant difference in soil tem-perature during tasseling and maturing period among the three treatments.During the whole growth period,the capacity of the soil to store water under biodegradable plastic film was higher than that under the common plastic film.The CK had the poorest soil water storage in the top 60 cm,followed by M2.The emergence rate of maize under M1 reached 99%,higher than those under M2 and CK by 8.5% and 16.2%,respectively.The maize yield was the highest under M1,which was 6.8% and 35.2% higher than that with M2 and CK,respectively.These re-sults provided reference for the future use of biodegradable film in large area to improve maize yield and water use efficiency.
Keywords：oxo-biodegradable plastic filmsoil temperaturesoil moisturemaize yieldrain-fed agriculture
Publication Date：2017-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：6( 25-30 )