杂交水稻茂优201氮肥施用试验

Effects of Different Top-dressing Time and Amount of Nitrogen Fertilizer on Yield of Maoyou 201 (a Hybrid Rice Variety)

杂交水稻茂优201在施相同底肥的条件下,以尿素作追肥,进行不同施肥时期、施肥量试验,结果表明:各处理间生育期、株高、千粒重差异不大,达到分蘖高峰的时间相差不大。以分蘖期施尿素2 kg/667m2,抽穗期施尿素1 kg/667m2的处理产量最高;其次是分蘖期施尿素3 kg/667m2的处理。优质杂交水稻品种茂优201在分蘖期施足分蘖肥能有效提高产量。

Maoyou 201, a hybrid rice variety, was tested to investigate effects of different top-dressing time and amount of nitrogen fertilizer on its yield under the same base manure. The results showed that there was no difference in growth period, plant height, 1000-grain weight and peak tillering stage among the tested treatments. The first and second yield was gained by applying 2 kg/667m^2 of N at the tillering stage and 1 kg/667m^2 at the heading stage, and applying 3 kg/667m^2 at the tillering stage separately, which indicates that applying the sufficient tillering manure at the tillering stage can raise yield of Maoyou 201 effectively.