Vol. 11, Issue 6 (2022)

Author(s):
YB Vala, CK Patel, MH Chavda, MG Chaudhary and KR Solanki

Abstract:
A field experiment was carried out at Agronomy Instructional Farm, Chimanbhai Patel College of Agriculture, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar during summer 2020. The soil of the experimental field was loamy sand in texture, with low in organic carbon (0.30%) and available nitrogen (148.20 kg/ha), medium in available P₂O₅ (46.0 kg/ha) and available K₂O (251.6 kg/ha) with soil pH of 7.5. The experiment comprised of ten treatments of different organic sources. The experiment was laid out in randomized block design with replicating three times. Integration of organic manures along with foliar spray of bio-enhancer i.e. application of castor cake @ 0.75 t/ha + panchagavya spray @ 4% at branching and flowering (T₇) produced significantly higher number of uptake of N and P (83.76 and 14.87 kg/ha) by crop, respectively. Organic carbon (%), available N, P₂O₅ and K₂O in soil after harvest of cowpea were not found significant due to different sources of organic manures.