摘要
总结了１９９１年～１９９５年关于双季稻吨粮田的土壤肥力定位研究情况。试验表明，在实施吨粮技术体系的条件下，产量和土壤肥力是稳定的。在不同冬作类型中，紫云英对提高土壤有机质和全氮量。
This paper deals with input output in the high yield double cropping rice paddy soil (1991～1995). The experiment showed that under the condition of applying the technical system for 'one ton grain yield per mu' when the input increased, the unit cost decreased, and the grain yield and energy yield were greatly enhanced. Hence, the economic benefit was prominently increased. It seems that the input level of 'the one ton grain paddy soil' is standing in the stage of incremental returns.
出处
《江西农业大学学报》
CAS
CSCD
1997年第2期43-47,共5页
Acta Agriculturae Universitatis Jiangxiensis
关键词
双季稻
吨粮田
投入产出
Double cropping rice
one ton grain paddy soil
input output
