Experiment of nitrogen,phosphorus potassium uptake and use efficiency for Zhongzheyou 8 were conducted to optimize rice formula fertilization scheme base on soil testing,improve fertilizer use efficiency,and promote fertilizer reduction and efficiency increase in Guangze.Results showed that the nitrogen,phosphorus and potassium fertilizer use efficiency were 38.37％,16.15％and 45.67％respectively,indicated nitrogen and potassium efficiency were relatively high,while phosphorus was relatively low.The soil testing formula fertilization treatment obtained highest yield,no nitrogen and no fertilization treatment had a large amount yield loss.
维普
万方数据