摘要
2002年在贵州凯里采用40cm×40cm规格稀植,对两优363栽插苗数与施氮量(尿素)进行了比较试验,结果表明,分蘖强、长势旺的两优363适当稀植,可增加单株营养面积,提高产量。穴插双株或三株谷粒秧,每667m2施氮量(尿素)15kg处理效果较好。扬花期受8月中旬低温冷害,每667m2产干净谷441.7kg和466.7kg。应用前景广阔。
The relationship between seedling number per hole and amount of nitrogen applied was investigated under the thin planting with 40cm×40cm in testing plot of Liangyou 363. The results show that the proper thin planting of Liangyou 363 with strong tiller ability and growth vigor can improve the nutritive area per plant and yield. The yields of two seedlings and three seedlings per hole are 441.7kg/667m2 and 466.7kg/667m2 respectively under 15kg/667m2 of nitrogen applied.
出处
《贵州农业科学》
CAS
2003年第3期20-22,共3页
Guizhou Agricultural Sciences
关键词
两优363品种
两系杂交稻
稀植栽培
施氮技术
two-line hybrid rice
Liangyou 363
thin planting
applying nitrogen technique
