Vol. 12, Issue 12 (2023)

Author(s):
Prasant, Atul Kumar Singh and Abhishek

Abstract:
During the winter (Rabi) season of 2022-23, a field experiment unfolded at the Research Farm of the Department of Soil Science and Agricultural Chemistry, AKS University, Sherganj, Satna (M.P.). The objective was to scrutinize the influence of phosphatic fertilizers on pea yield and the uptake of N, P and K. The experiment featured ten distinct treatments i.e., T₁-Control, T₂-10 kg P₂O₅/ha SSP, T₃-20 kg P₂O₅/ha SSP, T₄-30 kg P₂O₅/ha, T₅-40 kg P₂O₅/ha SSP, T₆-50 kg P₂O₅/ha SSP, T₇- 60 kg P₂O₅/ha SSP, T₈- 70 kg P₂O₅/ha SSP, T₉- 80 kg P₂O₅/ha SSP and T₁₀-90 kg P₂O₅/ha SSP which were arranged in a randomized block design with three replications each. Remarkably, the findings unveiled that treatment T₉ (80 kg P₂O₅/ha SSP) showcased a consistent trend: an increased application of phosphatic fertilizer corresponded to notable improvements in root nodulation, yield-related characteristics, and nutrient assimilation in pea seeds. Treatment T₉ (80 kg P₂O₅/ha SSP) stood out with the highest count of root nodules (22.14), along with superior fresh and dry weights of root nodules (47.35 and 38.23 g, respectively). This treatment also demonstrated the highest number of pods per plant (14.32), pod length (8.47 cm), grains per pod (7.40), pod weight (6.16 g), and overall pea crop yield (47.65 q/ha). Additionally, the uptake of nitrogen (23.60 kg/ha), phosphorus (4.52 kg/ha), and potassium (6.56 kg/ha) reached peak levels in Treatment T₉. These comprehensive results underscore the profound impact of phosphatic fertilizer on enhancing multiple facets of pea crop development and nutrient absorption.