期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2003

29

3

199-203

10.3321/j.issn:1007-1032.2003.03.007

湖南省科技厅重点资助项目；

本校为第一机构

为了提高旱稻的产量和品质,用正交旋转组合试验设计,研究了氮、磷、钾肥用量配方对巴西陆稻IAPAR9的生长发育、产量和品质的影响.结果表明:氮肥用量与巴西陆稻的最高苗数、有效穗数、干物质积累呈显著正相关;施磷量与稻谷产量呈显著正相关;施氮、钾量与稻谷产量呈极显著正相关,增施钾肥对提高结实率和增穗、增重有明显的作用;氮肥、磷肥、钾肥用量与巴西陆稻的成穗率均呈较弱的负相关,氮、磷、钾肥用量对稻米外观品质影响不大,不同处理间的垩白粒率、整精米率、蛋白质含量的变异幅度较大.巴西陆稻IAPAR9有效穗数、每穗实粒数、结实率、千粒重与产量均有不同程度的正相关,产量性状对产量的效应从...

The author aims at the main nutritional characteritics and different effects of various applying ratios of nitrogen(N), phosphate(P) and potassium(K) on yield and quality of Brazilian upland rice IAPAR9, based on the field experiment with the orthogonal rotational combinatorial design.The results are as follows: the maximum tillers,effective ears,accumulation rate of dry matter and N application are highly correlated.The rice yield and P application are distinctly positively correlated.The rice yield and N, K application are highly positively c...