Title: Prospects of supplementing chemical fertilizers with organic and bio fertilizers for crop production in rainfed conditions.
Abstract: Rainfed agriculture is characterized by low soil productivity, small land holdings and excessive soil erosion. Field experiment was conducted on integrated use of chemical, organic and bio fertilizers for improving maize fodder yield, soil fertility and economic returns. Full dose of NPK fertilizer was compared with different combinations of half dose of NP with organic and bio fertilizers viz. biological potassium fertilizer (BPF), Biopower, effective microorganisms (EM) and green force compost (GFC). Crop height, leaf area and fresh biomass were highest with full NPK followed by BPF + full NP. Maximum uptake of N and K by crop was under full NPK fertilizer, while P uptake was highest in BPF + full NP. Economic analysis revealed that through decreased use of NPK fertilizers the production cost was reduced and net returns were enhanced. So, it was concluded that integration of half dose of NP fertilizer with Biopower + BPF or Biopower + EM had the potential to compare with full dose of NPK fertilizer.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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