论文部分内容阅读
为探讨春花田早稻适宜氮肥用量及氮肥的当季利用率，以获最佳经济效益施氮量，１９９９年我们在屯头中心坊进行了春花田早稻不同氮肥施用量试验。１材料与方法 供试品种“嘉育２９３”，前作大麦。４月１５日播种，５月１４日移栽。早稻于７月３１日收割。 试验田土壤属泥质田
In order to investigate the appropriate amount of nitrogen fertilizer and the seasonal utilization rate of nitrogen fertilizer for early spring rice in Chunhua, in order to obtain the best economic benefit of nitrogen application, we conducted the experiment of different nitrogen application rate of early spring rice in Chunhua field in 1999. 1 Materials and methods The test varieties “Jia Yu 293”, before the barley. April 15 planting, May 14 transplanting. Early rice harvest on July 31. The soil in the experimental field is a muddy field