Effects of Spraying Foliar Fertilizer on Wheat Photosynthetic Characteristics and Yield in Irrigation Area

TL;DR: In this article, the effects of different kinds of foliar fertilizer on the wheat photosynthetic characteristics and yield were investigated in a scientific and educational park in Henan Agricultural University.

Abstract: [Objective] The research aimed to study the effects of spraying foliar fertilizer on the wheat yield,and explore the effects of different kinds of foliar fertilizer on the wheat photosynthetic characteristics. [Method]The scientific and educational park in Henan Agricultural University was selected to research the changes of wheat photosynthetic characteristics and yield. [Result] Spraying monopotassium phosphate and trace element water-soluble fertilizer could decrease leaf SPAD value,but spraying macroelement water-soluble fertilizer,water-soluble fertilizer containing amino acid,water-soluble fertilizer containing humic acid and Penshibao increased leaf SPAD value. All the six foliar fertilizers enhanced photosynthetic efficiency of wheat,with the best effect of monopotassium phosphate. During heading time in wheat,the six kinds of fertilizers increased the parameter Fv / Fm with different degrees. And during filling time in wheat,except that monopotassium phosphate obviously increased Fv / Fm value,the other five kinds of fertilizers decreased Fv / Fm value obviously. The wheat yields were all improved under the six different treatments,and the increased range reached maximum under monopotassium phosphate,which was 6. 43%,followed by Penshibao and water-soluble fertilizer containing amino acid,which were 5. 88% and 4. 66% respectively. [Conclusion] In irrigation area,the effect of spraying monopotassium phosphate was better.