杂稻两优363迟播条件下的栽培试验

Late Sowing Test of Two Line Hybrid Liangyou 363

为了探索迟播条件下两优 36 3的高产栽培技术 ,在贵州省中低海拔的凯里 (海拔 6 70 m) ,进行了一组杂稻两优 36 3的正交栽培试验。结果表明 :在肥力较高田块栽插密度为 1.4 3万穴 / 6 6 7m2 ,采取单株苗栽插 ,施用纯氮肥 10 kg/ 6 6 7m2 和纯钾肥 15 kg/ 6 6 7m2 ,产量较高 ,省工、投入少 ,经济效益好 ;而增加栽插秧苗数 ,增施氮肥和钾肥量 ,部分处理虽增加了产量 ,但经济效益差 。

Late sowing test of two line hybrid was conducted at the low elevation 670 m Kaili area of Qiandongnan in Guizhou. Single plant transplanting showed better yield for two line hybrid Liangyou 363, applying of pure N fertilize for 10 kg/667m 2 and pure K fertilize for 15 kg/667m 2. Although some of those treatments, plant density and fertilizer quantity to be raised, got little increase in yield, but its economical efficiency was low, and most treatments decreased in yield.