Effects of Black Controlled-Release Fertilizer on Plant Characteristics,Yield and Fertilizer Utilization of Peanut
Field experiment was conducted to seek effective measures to reduce fertilizer applica-tion amount and increase the efficiency in peanut production.No fertilizer(CK1)and ordinary applica-tion amount of compound fertilizer(CK2)were used as controls,and four gradient treatments of black controlled-release fertilizer as 750 kg/ha(T1),675 kg/ha(T2),600 kg/ha(T3),450 kg/ha(T4)were set to study the effects of different treatments on the growth and development of peanut and fertilizer utilization.The results showed that the four black controlled-release fertilizer treatments could reduce plant height and branch length,and increase the number of green leaves on main stem and the number of plump pods.The 100-pod mass,100-kernel mass,kernel rate and yield of T2 and T1 were higher than those of other treatments.The comprehensive agronomic utilization rate of the four black controlled-release fertilizer treatments were all higher than that of CK2.The contribution rate and agronomic utilization rate of T2 were significantly higher than that of CK2.The peanut return income of T2 and T1 was higher than that of CK2.Based on the results of this experiment,the application rate of 675 kg/ha black controlled-release fertilizer(T2)is recommended for high-quality and high-yield peanut production.
peanutblack controlled-release fertilizeryieldagronomic utilization rate of fertilizer
万方数据
维普
