Effect of Adding Humic Fungus Residue on Nutrient and Yield of Maize
In order to provide a theoretical basis for the scientific application of humic fungus residue in the improvement of calcareous black calcareous soil,effects of increasing organic materials on maize yield and nutrient absorption were studied.Xianyu 335 was used as experimental material,three treatments were set up:no fertilization treatment,conventional fertilization control,humic fungus residue and conventional fertilization.The results showed that the dry matter accumulation,N and P uptake of maize were significantly increased by adding humic fungus residue,but no significant effect on K uptake was observed.The ear length,grain number and weight of maize were increased by 20.52%and 4 747.5 yuan·hm-2 respectively,and the N,P and K utilization efficiency of maize were increased by applying humic fungus residue.It was concluded that the application of humic fungus residue on the basis of local conventional fertilization could promote maize growth,increase yield and fertilizer utilization efficiency.