Effect of Mixing Pine Needles Litters on Soil Biological Properties and Phosphorus Availability in Soil Amended with Fertilizers and Manures |
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| Authors: | Arvind Kumar Rai Rakesh Bhardwaj Amish Kumar Sureja |
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| Institution: | 1. Division of Soil and Crop management, ICAR-Central Soil Salinity Research Institute, Karnal, Haryana, India;2. College of Horticulture and Forestry, Central Agricultural University, Pasighat, Arunachal Pradesh, India;3. College of Horticulture and Forestry, Central Agricultural University, Pasighat, Arunachal Pradesh, India;4. ICAR-National Bureau of Plant Genetic Resources, New Delhi, India;5. ICAR-Indian Agricultural Research Institute, New Delhi, India |
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| Abstract: | Effect of different manures and pine needles application on soil biological properties and phosphorus availability was evaluated in sandy loam soils. Fertilizers nitrogen, phosphorus, and potassium (NPK); Sesbania aculeata green manure (GM); farm yard manure (FYM); and vermicompost (VC) were applied alone or in combination with pine needles. Microbial biomass carbon, dehydrogenase, and alkaline phosphatase activity increased significantly due to manures and NPK. Pine needles reduced the microbial biomass carbon (MBC) and dehydrogenase activity in FYM and VC but increased in NPK and GM. Acid phosphatase activities were found to be significantly increased by pine needles application in NPK, FYM, VC, and GM as compared to without pine needles counterparts. No significant differences were found in soil solution phosphorus in manure treated soil due to pine needle application, but phosphorus uptake was reduced significantly in these treatments. Pine needles application clearly influenced the soil biological properties without any perceptible effect on nutrient release from the manures. |
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| Keywords: | Agroforestry dehydrogenase manure MBC phosphatase pine needles |
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