Impact of Integrated Nutrient Management on Soil Properties under Long-Term Fertilizer Experiment in Vertisol
Chandini Pradhan
Department of Soil Science and Agricultural Chemistry, Soil Technology and Carbon Sequestration Laboratory, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221005, India.
Amlan Kumar Ghosh *
Department of Soil Science and Agricultural Chemistry, Soil Technology and Carbon Sequestration Laboratory, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221005, India.
B. K. Dixit
Department of Soil Science, College of Agriculture, Jawahar Nehru Krishi Viswa Vidyalaya, Jabalpur, Madhya Pradesh, India.
Somya Kumari Bhadani
Department of Soil Science and Agricultural Chemistry, Soil Technology and Carbon Sequestration Laboratory, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221005, India.
Satya Narayana Pradhan
Department of Soil Science and Agricultural Chemistry, Soil Technology and Carbon Sequestration Laboratory, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221005, India.
*Author to whom correspondence should be addressed.
Abstract
Aims: To study the effect of continuous fertilization on soil properties and soil carbon stock, in a long-term experiment under a wheat-soybean cropping system in Vertisol.
Study Design: The experiment was laid in a Randomized block design and consisted of three replications and nine treatments.
Place and Duration of Study: Soil samples were collected during April 2022 following the harvest of Wheat from the on-going long-term fertilizer experiment at Jawahar Nehru Krishi Viswa Vidyalaya, Jabalpur, Madhya Pradesh, India
Methodology: The soil samples were collected from two depths (0-15 and 15-30cm) and were analyzed for properties such as pH, electrical conductivity, available N, available P and available K using standard procedures.
Results: The results indicated that out of all the treatments continued application of 100% NPK+ Farm yard manure had a significant effect (P<0.05) on all the parameters. This treatment had the highest value for in both 0-15 and 15-30 cm: SOC%(0.79% and 0.73%), available N(319.3 kg ha-1 , 275.00), available P(40.11 kg ha-1, 37.85 kg ha-1), available K (326.33 kg ha-1, 302.9 kg ha-1).
Conclusion: Continued application of both 100%NPK along with FYM has a significant positive impact on the build-up of nutrients in the soil. This indicates that integrated application of nutrition assures productivity soil in the long.
Keywords: Chemical fertilizers, integrated nutrient management, long-term fertilizer experiment, Vertisol