不同叶面微肥对谷子生长发育及产量的影响

Effects of Different Foliar Micro-fertilizers on Growth, Development and Yield of Millet

为探索适宜在谷子上应用的叶面肥,本试验选取海心花、喷乐增、藻力素、富活素、海藻素、禾神元生物菌剂等6种叶面水溶肥在谷子孕穗期进行叶面喷施。结果表明,6种叶面微肥处理谷子的株高、茎粗、光合速率、叶绿素含量(SPAD值)、产量等指标均有明显提高,其中尿素+海藻素、尿素+富活素2个处理效果显著,较仅喷施尿素对照净光合速率分别增加34.76%、29.09%,叶绿素含量(SPAD值)分别增加9.24%、9.37%,产量分别增加23.09%、20.34%。由此表明,孕穗期喷施叶面微肥能促进谷子的生长发育,提高谷子产量,以尿素+海藻素、尿素+富活素处理的效果最佳。

In order to explore suitable foliar fertilizers for applying on millet, 6 kinds of foliar water-soluble fertilizers, such as Haixinhua, Penlezeng, Zaolisu, Fuhuosu, Haizaosu and Heshengyuan biological agent, were selected to spray on the leaves at booting stage. The results showed that the plant height, stem diameter, photosynthetic rate,chlorophyll content(SPAD value) and yield of millet treated with 6 kinds of foliar micro-fertilizers were significantly improved. Among them, 2 kinds of treatments(urea +Haizaosu and urea +Fuhuosu) had significant effects: compared with the control( only spraying urea), the net photosynthetic rate increased by 34. 76 % and 29. 09 %, SPAD value increased by 9.24% and 9.37%, and yield increased by 23.09% and 20.34%, respectively. It′ s indicated that spraying foliar micro-fertilizers at the booting stage could promote the growth and development of millet and increase the yield of millet. The effects of urea+Haizaosu treatments and urea+Fuhuosu treatment were the best.