【摘要】 对常规稻品系A进行基肥(复合肥N∶P∶K=15∶15∶15)施用量试验,按照每公顷为0kg、225kg、450kg、675kg、900kg的免耕直播试验。结果表明,随着施肥量的增加,品系A的抽穗期及成熟期相应推迟;苗期株高、叶龄、最大叶长、最大叶宽、分蘖率、干(鲜)重等指标增加;施肥量为450kg·hm-2时产量较优。更多还原

【Abstract】 Experiments on application rates of basal fertilizer of late-season rice (conventional rice variety A) with zero-tillage and direct sowing were carried out. Compound fertilizer (N∶P∶K=15∶15∶15) was used at the application rates of 0 kg·hm-2,225 kg·hm-2, 450 kg·hm-2 675 kg·hm-2, 900 kg·hm-2. Results showed that with the increase of basal fertilizer, the heading stage and maturity stage delayed, and the height,the length and width of the largest leaf, tiller rate, dry (fresh)weight increased. Good yield was achieved at the application rates of 450 kg·hm-2.更多还原