基穗型施肥水稻对肥料氮和土壤氮的吸收利用 |
| |
引用本文: | 赵荣广,李淑华,孙维忠,肖免.基穗型施肥水稻对肥料氮和土壤氮的吸收利用[J].核农学报,1997,11(3):0-0. |
| |
作者姓名: | 赵荣广 李淑华 孙维忠 肖免 |
| |
作者单位: | [1]黑龙江省农业科学院原子能利用研究所 [2]黑龙江省农业科学院水稻研究所 |
| |
摘 要: | 利用^15N同位素研究了水稻基穗型施肥法的效果。结果表明,在等量氮肥条件下,基穗型施肥法能够提高水稻有效穗数、颖花数、结实率和籽粒重量,是降低水稻生产成本,提高水稻产量的有效措施。
|
关 键 词: | 水稻 吸收 残留 损失 氮肥 |
收稿时间: | 2009-12-31 |
修稿时间: | 2009-12-31 |
ABSORPTION AND UTILIZATION OF FERTILIZER N AND SOIL N BY RICE AT BASAL EAR STAGE |
| |
Abstract: | The effect of basal ear fertilizer application on uptake and utilization of fertilizer and soil N by rice was studied with 15 N tracer technique. The results showed that the basal ear fertilizer application is an effective approach to increase numbers of effective ears,caryopsis, spikelets, seed setting percentage, seed weight and yield of rice and reduce the cost of rice production under the condition of applying equal doses of nitrogenous fertilizer. \ \ |
| |
Keywords: | 15N t racer rice uptake |
本文献已被 维普 等数据库收录! |
| 点击此处可从《核农学报》浏览原始摘要信息 |
| 点击此处可从《核农学报》下载免费的PDF全文 |
|