Vol. 11, Issue 4 (2022)

Author(s):
Vijayjitendra Kumar Patel, Lovekesh Kumar Gilhare and Rahul Kumar Jaiswal

Abstract:
A field experiment was carried out at Research cum Instructional Farm, IGKV, Raipur, during kharif season of 2011. The soil of experiment field was ‘Vertisols’. The soil was neutral (pH 7.12) in reaction and medium in fertility having 0.52% organic carbon, low N (205.5 kg ha-1), medium P (17.0 kg ha-1) and high K (345 kg ha-1). The treatments consisted of four aromatic rice varieties as main plot viz. Jeeraphool, Kasturi Badshah Bhog and Sugandhamati with six organic nutrient management treatments as sub plot viz. T1 (CDM + CCR + Vermicompost), T2 (T1 + BGA + PSB + Azospirillum), T3 (T1 + Rock Phosphate), T4 (T1 + Panchgavya), T5 (T2 + Rock Phosphate + Panchgavya) and T6 (T1 + Neemastra).The results revealed that pH, electrical conductivity and organic carbon (OC) were found to be not affected due to varieties as well as organic nutrient management options. Further, as the OC in soil takes a long time to change hence even different organic nutrient management options had no effect on the OC of the soil. And available N, P and K status of soil due to both varieties and organic nutrient management were not affected due to the different aromatic rice varieties. T₁+ BGA+ PSP + Azospirillum + rock phosphate + panchagavya (T₅) helped to store the significantly higher N (261 kg ha^-1) and P (21.92 kg ha^-1) in soil over the application of CDM + CCR + VC (T₁). T₂ (T₁+ BGA+ PSP + Azospirillum) and T₃ (T₁ + rock phosphate) also improved comprehensively the N and P status in soil respectively. Interaction between varieties and organic nutrient management was found to be significant and the highest amount of nitrogen (269 kg ha^-1) in soil was obtained in plots of Badshah Bhog (T₄) variety with T₅ (T₂ + RP+ panchagavya).