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在我国南方水稻生产中,如何开辟新肥源以改良土壤、增产粮食是个重要课题。增辟肥源途径很多,其中探讨水稻田的养分循环,研究以田养田的技术措施是有价值的。本文拟在讨论水稻田水层的氮素循环基本特性的基础上,对水浮莲(Pistia stratiotes L.)在稻田放养和利用的技术及其效果作一介绍。
In rice production in southern China, how to open up new fertilizer sources to improve the soil and increase grain production is an important issue. There are many ways to increase the sources of fertilizers, including exploring the nutrient cycle in paddy fields and studying the technical measures of raising fields in fields. This paper intends to discuss the basic nitrogen cycling characteristics of paddy field water layer and introduce the technology of stocking and utilizing Pistia stratiotes L. in paddy fields and their effects.