杂交香稻黔香优302施尿素量与栽插株数栽培试验

Effects of Different Urea Application Amount and Transplanting Seedling Number on Yield of Aromatic Hybrid Rice Qianxiangyou 302

2006年在贵阳市郊（海拔1 140 m）,对优质杂交香稻黔香优302进行了不同施氮量和不同栽插株数的裂区栽培试验。结果表明：在贵阳市郊施用蚕豆绿肥1 000 kg/667m2作基肥,4月1日播种,秧龄55 d,栽插基本苗1.2万株/667m2的条件下,栽插2株和施尿素10 kg/667m2,产量达到642.78 kg/667m2,达到省工、高效的结果。并对黔优302在中高海拔地区（海拔1 100-1 300 m）的栽培技术和经济效果进行了讨论。

The split spot trial was conducted to investigate effects of different urea application amount and transplanting seedling number on yield of the aromatic hybrid rice Qianxiangyou 302 in Guiyang with an elevation of 1100 meters in 2006.The results showed that the yield of 642.78 kg/667m2 can be obtained under 1000 kg/667m2 of broad bean green manure as the basic manure,55d of seedling age,12 thousand plant/667m2 of basic seedlings,two seedlings per hole,10 kg/667m2 of urea and sowing on April 1.It is discussed to the cultivation technique for planting qianxiangyou 302 in the area with an elevation of 1100～1300 meters and its economic effect.