Vol. 10, Issue 12 (2021)

Author(s):
Sayali Biradar, VG Salvi, Bhakti Raut and Utkarsha Deshmukh

Abstract:
The present investigation was carried out at the Central Experiment Station Wakawali, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, to study the combined effect of inorganic and organic manures on available nutrient status of soil and their correlation with yield of the yam bean. Different levels of nitrogen (80,100,120 kg ha-1), phosphorous (40, 60, 80 kg ha-1), FYM (10, 15, 20 kg ha-1), a constant dose of potassium (100 kg ha-1) and an absolute control was used to comprise thirteen treatment combinations which were replicated thrice and analyzed using randomized block design. The available nutrient status was observed to be significantly higher due to integration of inorganic and organic manure over absolute control as well as sole application of inorganic fertilizers at all growth stages. Significantly highest available nitrogen, phosphorous and potassium content was recorded under treatment receiving highest level of inorganic fertilizers and FYM application. Further, a stage wise decrease in nutrient status was observed from 30 DAS to harvest of yam bean. The significant increase in the organic carbon content was observed due to treatments receiving higher levels of FYM (15 to 20 t ha-1) at 30 DAS, 60 DAS and at harvest of yam bean. A stage wise decrease in organic carbon content was recorded during 30 days after sowing to 60 days after sowing and again stipulated increase was recorded at harvest from 60 days after sowing. The available primary nutrients, soil pH and organic carbon content except electrical conductivity showed positive and significant correlation with yield of the yam bean.