Impact of NPK and Vermicompost on Physico-chemical Properties of Soil of Cluster Bean (Cyamopsis tetragonoloba L.) Cv. Pusa Navbahar
Pritishree Bhoi
Department of Soil Science and Agricultural Chemistry, Naini Agricultural Institute (NAI), Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, Uttar Pradesh, India.
Narendra Swaroop
Department of Soil Science and Agricultural Chemistry, Naini Agricultural Institute (NAI), Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, Uttar Pradesh, India.
Tarence Thomas
Department of Soil Science and Agricultural Chemistry, Naini Agricultural Institute (NAI), Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, Uttar Pradesh, India.
Satya Ranjan Mohanta *
Department of Soil Science and Agricultural Chemistry, Naini Agricultural Institute (NAI), Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, Uttar Pradesh, India.
Ashima Thomas
Department of Agro-Food Sciences and Technology, University of Bologna, Italy.
*Author to whom correspondence should be addressed.
Abstract
A field experiment was conducted at the Soil Science and Agricultural Chemistry department’s central research farm during the Kharif season, 2022-24. The plots were laid out in randomized block design (RBD) with nine treatment combinations that were replicated three times and randomly allocated. A variety of cluster bean, Pusa Navbahar was taken for the study trial. Recommended doses of fertilizers (NPK @ 0, 50, and 100%) was applied along with Vermicompost (Vermicompost @ 0.0, 2 and 4 t ha-1). The results obtained showed that T1 (Absolute Control) recorded maximum particle density (2.55 Mg m-3 and 2.55 Mg m-3) and bulk density (1.35 Mg m-3 and 1.36 Mg m-3) at 0-15 cm and 15-30 cm depth, respectively. The results showed slight change in soil pH i.e., pH was recorded maximum (6.88 and 6.89) at 0-15 cm and 15-30 cm depth, respectively in T1 (Absolute Control). EC (0.46 dS m-1 and 0.47 dS m-1), Organic carbon (0.39% and 0.38%), Pore space (49.60% and 48.81%), Water holding capacity (46.48% and 46.89%), Available Nitrogen (288.05 kg ha-1 and 285.22 kg ha-1), Available Phosphorus (25.28 kg ha-1 and 24.28 kg ha-1) and Available Potassium (201.36 kg ha-1 and 193.73 kg ha-1) was measured maximum in T9 (NPK @ 100% + Vermicompost @ 100%) at 0-15 cm and 15-30 cm depth, respectively. Among all the treatment combinations, the increase in NPK (kg ha-1) was found to be significant in cluster bean. Additionally, the research showed that using vermicompost along with NPK was a superior method of fertilization than using these components alone.
Keywords: Cluster bean, nitrogen, phosphorus, potassium, vermicompost