喷施新型叶面肥对小麦籽粒灌浆与产量结构的影响OA

To analyze the variation patterns and effects of new foliar fertilizers on the growth and yield structure of wheat and provide a theoretical basis for the promotion and application of foliar fertilizers in wheat production in this region,by spraying different foliar fertilizers on winter wheat,the dry weight of grains and the final yield structure at different stages were measured,and the effects on grain filling and yield were analyzed.The results showed that spraying Chunke potassium dihydrogen phosphate compound preparation,Chunquan 883 humic acid water-soluble fertilizer,Tiancibao,and Chunquan 883 ultra-concentrated active organic matter could increase the thousand-grain weight of wheat.Moreover,the thousand-grain weight showed a clear increasing trend with the number of spraying applications.When these four types of foliar fertilizers were sprayed three times,the thousand-grain weight of Yangmai 30 reached 51.63 g to 51.94 g,and that of Zhenmai 18 reached 47.64 g to 49.57 g.When Spraying"Nenglifeng"1 to 3 times,the thousand-grain weight of Yangmai is 49.93 g to 49.98 g,and that of Zhenmai 18 is 46.13 g to 46.39 g.but there was little difference among the three applications.From the test results,it can be seen that when foliar fertilizers are sprayed on wheat 2-3 times after flowering,the thousand-grain weight significantly increases,and the yield and economic benefits also significantly improve.The plot yield of the Yangmai 30 is higher than that of Zhenmai 18,and the difference is highly statistically significant(P<0.01).