外源微肥调控对水稻产量和品质的影响OA

A field experiment was conducted in the experimental area of the Rice Research Institute,Heilongjiang Academy of Agricultural Sciences in 2023 to investigate the effects of exogenous micronutrient fertilizer regulation on yield and quality traits of rice.Four treatments with different exogenous micronutrient fertilizers were set up and compared with conventional fertilization to explore their influences on rice yield and quality related indices.The results showed that in terms of yield-increasing amplitude,the treatments ranked as seedling strengthening synergist>seedling strengthening synergist combined with selenium>medium and trace elements(potassium phosphite+boron)>special micronutrient fertilizer,with yield increases of 8.2%,6.4%,5.2%,and 3.5%compared with the control,respectively,showing significant yield-promoting effects.From the perspective of improving taste score,the order was seedling strengthening synergist combined with selenium>special micronutrient fertilizer>seedling strengthening synergist medium and trace elements(potassium phosphite+boron),which increased the taste score by 3.1,2.9,2.3 and 1.5 points compared with the control respectively.In conclusion,the combined application of seedling strengthening synergist and selenium as exogenous micronutrient fertilizer regulation could increase rice yield and simultaneously improve taste score,achieving the goals of high yield and good quality.