摘要
用飞机对草地进行叶面喷施氮、磷、钾和植物生长调节剂的试验结果表明,不同剂量混施时,干草增产幅度可达17.2～46.7%,种子增产幅度为10.8～15.2%,分别达到了显著差异(p<0.05)和极显苦差异(p<0.01)的水平,增产效果明显,技术先进可行,投资效率高,可以在地广人稀的牧区推广试用。
The plane was applied to spray nitrogenous, phosphate and potash fertilizer and plant growth regulator on plant leaves in grassland. The experimental result indicates that in the mixed-manure with different dosage, The dry matter productionhas increased by 17.2～46.7%, and the seed production by 10.8～15.2%. Through the test of significance, the levels of p<0.05 difference of significance and p<0.01 difference of extreme significance have been reached respectively. Therefore, the prodution increases obviously, the adopted techniques are advanced and the investment is efficient.
出处
《中国草地》
CSCD
1990年第2期23-26,共4页
Grassland of China
