摘要
在海拔360～1280米不同稻作生态地区5个试点以黔育417等3个品种(组合)进行栽插密度试验结果:各点综合平均亩产黔育417为492.9公斤,比杂交稻汕优63减产3.3％,早熟10天左右、比威优64增产1.0％,晚10天左右,产量差异不显著;黔育417适宜海拔880～1200米地区种植,而汕优63适宜海拔1000米以下地区种植,威优64适宜海拔1200米以上的籼稻地区种植;黔育417在低热地区一般栽插密度以23×20(厘米),温凉地区以23×10(厘米)为宜,汕优63以23×17(厘米)为宜,而威优64以23×10(厘米)为宜。
The experiment consisting of 4 different treatments of planting density was conducted to conventional variety of indica rice Qian-yu No. 417 and two hybrid checks Shan-you No. 63 and weiyou No 64 at 5 different ecological places an altitute range of 360-1230 metres above level. The results showed that the average yield of 5 experiment units: Qian-yu No.417 was 7.39t/ha, decreased by 3.3% than Shan-you No.63 and increased by 1.0% than Wei-you No.64.The growth period of Qianyu No.417 was 10 days earlier than Shan-you No.63 and 10 days later than Wei-you No.64. The results indicated that high yield be gained by using different varieties and different planting densities in its suitable ecological areas respectively. The conventional variety Qian-yu No.417 suited the areas at the altitute 800-1200 metres.L s favorable planting density was 23×20cm in the warm areas and 23× 10cm in the cool areas. The hybrid shan-you No.63 suited the areas at the altitude below 1000 metres and its planting density was 23×17cm. The hybrid Wei-you No 64 suited the areas at the altitude above 1200 metres and its planting density was 23×10cm.
出处
《贵州农业科学》
CAS
1992年第6期17-20,共4页
Guizhou Agricultural Sciences
关键词
水稻
黔育417
栽培
密度
生态区
cultural technique
planting density
ecological area
