Effect of fertilizer combined with nitrogen synergist on yield and nitrogen utilization of rice
In order to study the effects of nitrogen fertilizer synergist and chemical fertilizer on crop yield and nitrogen use efficiency,field experiments were used to analyze rice yield,plant nitrogen content and nitrogen use efficiency under different fertilization treatments.The results showed that the combined application of chemical fertilizer and nitrogen fertilizer synergist(RF1+NS,RF2+NS)could significantly increase rice yield by 12.2%and 8.8%,respectively,under the same fertilizer application rate(RF1,RF2).Compared with RF1 and RF2,the apparent recoveries of nitrogen fertilizer in RF1+NS and RF2+NS treatments were significantly increased by 9.26 percentage points and 6.20 percentage points,respectively.In conclusion,the combined application of chemical fertilizer and nitrogen fertilizer synergist can help to reduce the amount of nitrogen fertilizer application and improve the yield and nitrogen use efficiency of rice.
ricenitrogenous fertilizernitrogen synergistnitrogen use efficiency
NETL
NSTL
万方数据
维普
