摘要
试验在双季高产稻区湖南醴陵市大田条件下进行。为比较一次性施肥技术与高效施肥技术肥料效应的差异 ,应用15N和3 2 P双标记研究了一次性施肥法的肥料效应 ,结果表明 :与对照法相比 ,一次性施肥技术可以促进水稻前中期对养分的吸收和增加干物质的积累量 ,全生育期水稻对氮和磷肥的利用率、氮肥回收率、水稻生物产量及谷物产量与对照相当。但由于一次性施肥法操作简单 ,有利于双季稻大面积平衡增产 。
Effects of totally basal dressing technique (F1 and F2,for early rice and late rice respectively) to whole plough layer on double harvest rice and traditional fertilization(CK1 and CK2,for early rice and late rice respectively) were compared by 15 N and 32 P tracing techniques under field conditions.There were no differences in total absorption of nitrogen and phosphate by rice plant,accumulation of biomass, 15 N utilization rate, 15 N recoverable rate and even in the yield between F1 and CK1,F2 and CK2 respectively.However,the technique was easier and more convenient for farmers to operate.
出处
《核农学报》
CAS
CSCD
北大核心
2001年第2期98-105,共8页
Journal of Nuclear Agricultural Sciences
基金
国家科委"九.五"重大科技攻关项目 !( 95 0 0 1 0 1)研究内容之一
关键词
双季稻
^15N
^32P
肥料效应
一次性施肥法
示踪技术
double paddy rice
^(15)N、^(32)P tracing
utilization rate of fertilizer
totally basal dressing techniques
