摘要
1988—1989年在四川中部丘陵钙质紫色土(红棕紫泥)上,采用最优回归设计进行稻麦轮作和以含氯和非含氯氮肥成组对比试验。由此建立了稻麦产量和品质与施肥水平的回归方程,拟定了高产优质的合理施肥方案,并分析了锌、磷、氮对稻麦产量、品质、生长发育、养分吸收和肥料利用率的影响以及锌肥后效。同时,探讨了氯在锌与磷氮配施中对稻麦的营养效应。
A field experiment of rice—wheat rotation was carried out on a calcareous purple soil (reddish—brown purple soil) in the hilly land of central sichuan (Suiling) in 1988—1980 to compare the effects of Cl—containing and non—Cl. An optimum regression design with 3 factors (Zn, P, N) and 5 levels comprising 15 combinations was employed. Regression equations between different fertilizer levels and rice—wheat yield were established by computer simulation, based on which the effects of Zn, P, N application and their combinations on rice—wheat yield and quality were analysed, and their effects on the growth and development, nutrient intake, fertilizer utilization percentage and the after effect of Zn—fertilizer were investigated. A scheme of rational fertilization of Zn, P, N for rice—wheat rotation was developed, the nutrient effects of Cl on rice and wheat in the combined application of Zn, N and P were discussed.
出处
《西南农业大学学报（自然科学版）》
CSCD
1990年第6期559-564,共6页
Journal of Southwest Agricultural University
关键词
轮作
水稻
小麦
锌磷氮
紫色土
purple soil
regression experimental designs
rice
triticum aestivum
