水稻适宜栽插深度研究

Study on Appropriate Cultivation Depth of Manual Transplanting Rice

为探索水稻人工栽插的适宜深度,开展了3个栽插深度的试验研究。结果表明:栽插深度对水稻生育期、穗粒数、千粒重无明显影响,株高穗栽插深度增加而降低,有效穗数随栽插深度增加而减少。单产上则以栽插密度为0.5cm的最高,为541.5kg/667m^2,其次为栽插深度1.5cm,与0.5cm无显著差异,单产随着栽插深度的增加而降低。说明生产上,水稻适宜的栽插深度为0.5~1.5cm。

In order to explore the appropriate manual transplant rice, 3 different cultivation depth on tranplanting rice was studied. The results showed that there is not obviously influence of growth periods, grains per spike, 1000 grians weight, with the increase of culti- vation depth, the plant heigh and settign spiked trends decrease, the yield of cultivation depth at 0.5 cm was greatest, it＇s 541.5kg/ 667m2 , yield of cultivation depth at 0.5 cm was second, but it＇ s not significant to 0.5 cm, with the increase the cultivation depth, the yield trends decline down. It＇ s indicated that the appropriate cultivation depth is 0.5 - 1.5 cm for manual transplanting rice.