Appraisal of Biofertilizers in Rice: To Supplement Inorganic Chemical Fertilizer  

作　　者：Haider Iqbal KHAN 

机构地区：[1]C 36 Gateway Building,The University of Nottingham, Sutton Bonington Campus

出　　处：《Rice science》2018年第6期357-366,共10页水稻科学（英文版）

基　　金：Financial support was delivered by Research Management Cell of Bangabandhu Sheikh Mujibur Rahman Agricultural University(BSMRAU)

摘　　要：A field experiment was carried out to evaluate the feasibility of inoculating rice seedlings with biofertilizers(Azospirillum and Trichoderma) in order to reduce the use of chemical inorganic nitrogen(N)fertilizer on rice variety BU Dhan 1. The plant performances were better when 25% less inorganic N was applied with Trichoderma and combined application of Trichoderma and Azospirillum. Plants contained the highest chlorophyll concentrations when they were treated with 75% N + Trichoderma. Considering the yield attributes, 75% N + Trichoderma and 75% N + Trichoderma + Azospirillum performed similar to the control. The grain yield of rice was similar to the recommended dose even with 25% less N application. Application of Trichoderma resulted higher yield, followed by combined application with Azospirillum. Results revealed the greater scope of applying biofertilizer(Trichoderma) to supplement chemical N fertilizer with optimum yield of rice.A field experiment was carried out to evaluate the feasibility of inoculating rice seedlings with biofertilizers(Azospirillum and Trichoderma) in order to reduce the use of chemical inorganic nitrogen(N)fertilizer on rice variety BU Dhan 1. The plant performances were better when 25% less inorganic N was applied with Trichoderma and combined application of Trichoderma and Azospirillum. Plants contained the highest chlorophyll concentrations when they were treated with 75% N + Trichoderma. Considering the yield attributes, 75% N + Trichoderma and 75% N + Trichoderma + Azospirillum performed similar to the control. The grain yield of rice was similar to the recommended dose even with 25% less N application. Application of Trichoderma resulted higher yield, followed by combined application with Azospirillum. Results revealed the greater scope of applying biofertilizer(Trichoderma) to supplement chemical N fertilizer with optimum yield of rice.

关 键 词：AZOSPIRILLUM BIOFERTILIZER INORGANIC chemical fertilizer RICE TRICHODERMA nitrogen 

分 类 号：S511[农业科学—作物学]