Effects of different zinc application methods on rice growth
In order to study the effects of different zinc application methods on rice growth,experiments were carried out in three paddy field experimental sites in Zhejiang Province.The effects of different fertilization rates,different rice varieties and different fertilizers on the zinc application in rice were studied,and the effects of different treatments on rice growth,grain yield and nutrient content were compared with the treatment without zinc fertilizer.The results showed that the appropriate application of zinc fertilizer could promote the growth of rice,increase the yield and nutrient content of rice,but excessive zinc application would lead to the decrease of fertilizer efficiency.The effect of zinc application to increase yield was also affected by rice varieties and fertilization methods,inorganic zinc fertilizer was suitable for basal fertilizer,organic zinc fertilizer was suitable for foliar fertilizer application,and the combination of basal application and foliar spraying had the best effect on yield increase.