Effects of Combined Application of Microbial Fertilizer and Compound Fertilizer on Growth and Soil Nutrients of Pepper in Mountain Region
Taking peppers as the test material,the effects of combined application of microbial fertilizer and compound fertilizer on the growth,nutrients content,quality and soil nutrients of pepper in mountain region were studied by field experiment,in order to provide reference for the rational use of microbial fertilizer in pepper production in high mountain areas.The results showed that compared with single application of compound fertilizer,the yield and total potassium content of pepper fruit under the treatment of 25％microbial fertilizer combined with compound fertilizer were significantly increased by 24.83％and 18.07％(P＜0.05),respectively,and the total nitrogen and total phosphorus were increased by 12.50％and 8.17％,which the difference was not significant.In addition,the contents of natural capsaicin,dihydrocapsaicin,total capsaicinoids,nitrate and vitamin C of pepper fruits were increased,while alkaline hydrolyzable nitrogen,available phosphorus,and available potassium of soil were increased by 3.78％,14.37％,and 15.61％,respectively,and organic matter content was reduced by 5.85％.Compared with single application of compound fertilizer,the yield of the treatment of 50％microbial fertilizer combined with compound fertilizer was increased by 11.84％which the difference was not significant(P＜0.05),meanwhile,the contents of nitrate and vitamin C were increased,but the contents of total nitrogen,total phosphorus and capsaicin compounds of pepper fruit were decreased.Compared with single application of compound fertilizer,the yield of single application of microbial fertilizer was reduced by 1.46％,while the contents of nitrate and vitamin C were the highest among different treatments.In conclusion,the treatment of 25％microbial fertilizer combined with compound fertilizer has the best effect on promotion of pepper yield,quality and soil nutrients.Therefore,25％replacement ratio of microbial fertilizer with compound fertilizer could be used in pepper cultivation in high mountain region.
万方数据
维普
