Study on Water-demand Regularities and Water Use Efficiencies of Rice under Paper mulching
It is great significant for field water management of the rice to study water-demand regularities of rice under paper mulching. In order to explore the evapotranspiration characteris-tics of rice during various growing stage and analyze the regu-larities of influence on the soil water and yield of rice under pa-per mulching, a potted experiment under paper mulching was done in Shenyang, China, 2010. The results show that the water requirement of rice is attaining maximum in booting stage, and the watersaving effect of paper mulching is obvious (P< 0.05) from reviving to booting stage. Paper mulching can suppress the water leakage effectively, and its effect on soil moisture content is significant. The yield and water use efficiency of rice under paper mulching improve 6.82％ and 10.91％ respectively than without paper mulching. Taking good usage of controlling irrigation technology and effective utilization of agricultural water re-sources must improve water use efficiency, which will give full play roles to saving water and increasing production of paper-mulching planting technology.
rice paper mulching water-demand regularites water use efficiencies
LIU Cuihong REN Wentao
College of Engineering Shenyang Agricultural University Shenyang, P. R. China
国际会议
山东淄博
英文
446-449
2011-05-27（万方平台首次上网日期，不代表论文的发表时间）