Unravelling Soil-Crop Dynamics: Bridging Soil Test Fertilizer Dose with Rice Yield and Nutrient Optimization Strategies in Chhattisgarh Plains, India

Himanshi Verma *

Department of Soil Science and Agricultural Chemistry, Indira Gandhi Krishi Vishwavidyalaya, Raipur, 492012 (C.G.), India.

L K Srivastava

Department of Soil Science and Agricultural Chemistry, Indira Gandhi Krishi Vishwavidyalaya, Raipur, 492012 (C.G.), India.

Gaurav Jatav

Department of Soil Science and Agricultural Chemistry, Indira Gandhi Krishi Vishwavidyalaya, Raipur, 492012 (C.G.), India.

R K Banwasi

Department of Soil Science and Agricultural Chemistry, Indira Gandhi Krishi Vishwavidyalaya, Raipur, 492012 (C.G.), India.

Monika Tikariha

Department of Soil Science and Agricultural Chemistry, Indira Gandhi Krishi Vishwavidyalaya, Raipur, 492012 (C.G.), India.

*Author to whom correspondence should be addressed.


Abstract

Efficient fertilizer management is imperative in modern agriculture to optimize yields and mitigate environmental impacts. This study investigates soil test-based fertilizer recommendations for rice cultivation, focusing on nutrient uptake, fertilizer adjustment equations, and nutrient contributions from soil, fertilizers, and farmyard manure (FYM). Field experiments were conducted in Raipur, India, with 24 treatment variations involving nitrogen (N), phosphorus (P), potassium (K), and FYM levels. Soil and plant analyses were performed to assess nutrient uptake and contributions. Results revealed strong correlations between grain yields and total N, P, and K uptake, with N contributing 94-96% variability in yield. Soil test data indicated significant increases in available N, P, and K with fertilization, while disparities were observed in soil test P levels among treatments. Contributions from fertilizers, soil, and FYM varied, with FYM contributing 9.21% for N, 1.81% for P, and 6.27% for K. Ready reckoner tables for soil test-based fertilizer recommendations demonstrated reduced requirements with higher soil test values and increased yield targets. Overall, the study underscores the importance of tailored fertilizer management based on soil fertility assessments for sustainable rice production.

Keywords: Soil test-based recommendations, nutrient uptake, fertilizer adjustment equations, farmyard manure, nutrient contributions, yield targeting, ready reckoners, sustainable agriculture


How to Cite

Verma , Himanshi, L K Srivastava, Gaurav Jatav, R K Banwasi, and Monika Tikariha. 2024. “Unravelling Soil-Crop Dynamics: Bridging Soil Test Fertilizer Dose With Rice Yield and Nutrient Optimization Strategies in Chhattisgarh Plains, India”. Journal of Experimental Agriculture International 46 (7):541-48. https://doi.org/10.9734/jeai/2024/v46i72607.

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