机直播不同穴直径对水稻产量的影响

Effect of Different Dibbling Diameter of Mechanization Hill-Direct-Seeding on Yield of Rice

为了研究不同穴直播直径对水稻茎蘖动态、产量及其农艺性状的影响,模拟机直播探索当地主栽直播稻适宜的机穴播直径。结果表明：随着穴播直径的增加,水稻产量呈现先增加后减少的趋势,在试验条件下,水稻穴播直径以4～6 cm为佳。

To study the effect of different dibbling diameter of mechanization hill-direct-seeding on tillers dynamics ,yield and agronomic traits of rice, the suitable dibbling diameter of the local rice varieties were imitated.The results showed that with the increase of dibbling diameter, the yield of rice showed a trend of increasing before decreasing.Under the condition of this experiment, the best dibbling diameter of rice was 4～6 cm.