施肥对扁穗雀麦草产量的影响

Effect of Fetilizer on Rescuegrass Production

通过不同水平下对刈割后的扁穗雀麦施加氮肥研究,结果表明,在一定范围内,氮肥对牧草鲜草产量具有明显的增产作用。当施肥量为70kg/hm^2时,鲜草产量最高达到15 513. 33kg/hm^2。考虑到经济价值等问题,建议最佳施肥量为50～70kg/hm^2。

The research studied the effect of different fertilizer levels on rescuegrass( Bromus catharticus Vahl.) production. The results showed that nitrogen fertilizer had a significant effect on yield of forage grass in a certain range. When the fertilizer level was 70 kg/hm^2,the yield of fresh grass was up to 15513. 33 kg/hm^2. Considering the economic value and other problems,it was suggested that the optimal fertilization amount should be between 50 and 70 kg/hm^2.