Acta Scientific Agriculture (ASAG)(ISSN: 2581-365X)

Research Article Volume 4 Issue 6

Effect of Fertilizer Sources on Soil Organic Matter and Soil Microbial Population in Broccoli Field

Salina Panta1*, Purushottam Subedi2 and Indira Bhattarai1

1Agriculture and Forestry University, Chitwan, Nepal
2Center for Crop Development and Agro-Biodiversity Conservation, Lalitpur, Nepal

*Corresponding Author: 2Center for Crop Development and Agro-Biodiversity Conservation, Lalitpur, Nepal Selangor, Malaysia.

Received: May 11, 2020; Published: May 29, 2020

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Abstract

Soil microbes show positive ecological interactions which promote nutrient recycling, decomposition and plant growth. To study the effect of different fertilizer sources on soil organic matter and soil microbial population in broccoli field, an experiment was conducted at Agriculture and Forestry University, Chitwan, Nepal from September 2015 to February 2016. The research consisted of ten treatments viz; recommended NPK fertilizer, Farmyard manure (FYM), Vermicompost (VC), Cow urine (CU), Bio organic fertilizer (BOF), (NPK 50% + FYM 50%), (FYM 50% + CU 50%), (FYM 50% + VC 50%), (FYM 50% + BOF 50%) and (25% FYM + 25% VC+ 25% CU+ 25% BOF) in randomized complete block design replicated three times. The study revealed that highest soil organic matter was recorded in FYM (50%) + vermicompost (50%) treatment (2.85%) which remained statistically similar with all other organic treatments. The recommended NPK treatment had significantly lowest SOM (2.06%). The highest bacteria population (43.6 x 107 cfu/g) and highest fungi population (11.0 x 106 cfu/g) were observed in treatment consisting all organic fertilizer sources (25% FYM + 25% VC+ 25% CU+ 25% BOF). In recommended NPK treatment, the bacteria and fungi population were 4.10 x 107 cfu/g and 7.1 x 106 cfu/g in 10-6 dilution respectively. But, in the treatments consisting organic fertilizer sources, bacteria population ranged from 2.93 x 107 cfu/g to 43.6 x 107 cfu/g and fungi population ranged from 7.33 x 105 cfu/g to 11.0 x 106 cfu/g in the same dilution respectively. Positive regression relation was also observed in between soil organic matter and soil microbes. Therefore, organic fertilizer sources supported for soil organic matter enrichment and promotion of bacteria and fungi population in the soil in comparison to chemical fertilizers.

Keywords: Soil Microbes; Soil Organic Matter; Colony Forming Units; Organic Fertilizer

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Citation

Citation: Salina Panta.,et al. “Effect of Fertilizer Sources on Soil Organic Matter and Soil Microbial Population in Broccoli Field" Acta Scientific Agriculture 4.6 (2020): 36-44.



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