摘要
为在水稻生产中合理使用氮、磷、钾肥,以适合寒地种植的11叶品种空育131为试材,采用"3414"随机区组设计,研究不同的氮、磷、钾配比对水稻生长发育及产量的影响。结果表明:处理6(N2P2K2)、处理10(N2P2K3)和处理11(N3P2K2)可较明显地增加水稻的茎数;合理配施可明显提高水稻的干物质积累,成熟期各处理组合以处理10(N2P2K3)总干重最多,比对照高12.2%;增施氮、磷、钾可增加水稻产量,其中处理11产量和效益最高,产量达10 519.5kg·hm-2;经回归分析优化出空育131最高产量为12 555kg·hm-2,相应的氮肥、磷肥和钾肥纯量为135.0,67.5和58.5kg·hm-2。
In order to use nitrogen ,phosphorus and potassium fertilizer reasonably in rice production of cold are-a ,taking Kongyu 131 as test material ,using randomized block design ,the effects of different ratio of nitrogen , phosphorus and potassium on growth and yield of rice were studied .The results showed that treatment 6（N2P2 K2 ） ,treatment 10（N2 P2 K3 ）and treatment 11（N3 P2 K2 ）could increase the rice stem number obviously ;reasona-ble fertilization could increase the dry matter accumulation of rice significantly ,total dry weight of treatment 10 （N2 P2 K3 ）was 12 .2% which was higher than the control in mature period ;the increasing of nitrogen ,phosphor-us and potassium could increase the yield of rice ,the yield and benefit of treatment 11 were maximum by 10 519 .5 kg·hm^-2 ;the highest yield of Kongyu 131 was 12 555 kg·hm^-2 by regression analysis ,corresponding nitrogenous ,phosphate and potash fertilizer scalar were 135 ,67 .5 and 58 .5 kg·hm^-2 .
出处
《黑龙江农业科学》
2014年第1期41-46,共6页
Heilongjiang Agricultural Sciences
