| Abstract: | In order to explore the effect of zinc fertilizer on rice yield, master the suitable amount of
zinc fertilizer in rice production, and provide scientific basis for guiding farmers to use zinc fertilizer
reasonably, the experimental study of rice zinc fertilizer was carried out in 2017. the results showed that
the quadratic equation between rice yield and application of zinc fertilizer was as follows: y=-33.4x2
98.121x 598.424 (R2 ≤ 0.8173); The application of proper amount of zinc fertilizer could increase pho?
tosynthesis, increase plant height, effective panicle, grain number per panicle and 1000-grain weight to
a certain extent, and then increase rice yield. Under the soil fertility level of the experimental site, pure
N-22 per mu was applied. On the basis of kg,P2O5 3kg, K2O 4kg formula fertilizer, the rice yield in?
creased with the increase of zinc fertilizer in the range of zinc fertilizer 0~1.47kg/ per mu, the rice yield
was the highest in 1.47kg/ mu, the rice yield decreased with the increase of zinc fertilizer in the range
of zinc fertilizer 1.47~2.93kg/ mu, and the rice yield did not increase but decreased when the amount of
zinc fertilizer was higher than that of 2.93kg/ mu. |
