摘要
合理的水稻施肥量和灌水量是充分利用养分和水分、提高水稻产量的基础。研究在黑龙江省哈尔滨地区由草甸黑土发育的水稻土的水稻田上进行的、采用"3414"试验设计方法的氮、磷、钾施肥与灌水试验的结果进行了分析,求得哈尔滨地区水稻的综合推荐施肥量为:水稻的氮、磷、钾推荐施肥量分别为:167.4 kg·hm-(2N)、27.9 kg·hm-(2P2O5)和52.8 kg·hm-(2K2O);分蘖中期-成熟期的较为合理的灌水方式为薄层浅灌。氮肥在85%饱和含水量与100%饱和灌水量之间存在着较为显著的交互作用,证明氮肥可以增加低水平灌水的水分利用效率。
Reasonable recommended fertilizer rates and irrigation quantities are the basis for optimizing the nutrients and water efficiency and increasing the rice yield.This work analyzed the results with the ＂3414＂ designed filed experiment and concluded that the integrated recommended fertilizer rates of rice in this area were 167.4 kg·hm-2（N）,27.9 kg·hm-2（P2O5） and 52.8 kg·hm-2（K2O）,respectively;the result also showed that the optimal irrigation pattern was shallow water irrigation from the middle-tillering to the maturity.When irrigation water increased from 85% saturated water content to 100% saturated water content,there was a positive interaction between the irrigation pattern and nitrogen rates,showing that nitrogen might increase the rice yield at 100 % saturated water content.
出处
《东北农业大学学报》
CAS
CSCD
北大核心
2012年第4期49-54,共6页
Journal of Northeast Agricultural University
基金
东北农业大学创新团队研究基金资助(CTM001)
