P. Kumar, B. Agrawal, Abhay Kumar and A.K. Paul
Krishi Vigyan Kendra Balrampur (C.G.) 497119 India
Abstract: Soil test crop response (STCR) correlation studies on Wheat were carried out in village Chirkoma, district Balrampur (C.G.) during Rabi 2012-13 taking MP-1203 as test crop to quantify Wheat production in the context of the variability of soil properties and use of balanced fertilizers based on targeted yield concept. Soil properties show moderate variation in texture (Sandy to sandy loam), organic carbon content (3.0 to 9.0 g/kg), and pH (4.67 to 7.52). Soil fertility status for N is low to medium (140 to 260 kg/ha), P is low to medium (5.28 to 14.56 kg/ha) and K ranges from medium to high (146 to 387 kg/ha). Database regarding nutrient requirement in kg/t of grain produce (NR), the percent contribution from the soil available nutrients [CS (%)] and the percent contribution from the applied fertilizer nutrients [CF (%)] were computed for calibrating and formulating fertilizer recommendations. The yield target for 30 q/ha was tested in farmers’ fields. The percent achievement of targets aimed at different level was more than 90%, indicating soil test based fertilizer recommendation approach was economically viable within the agro-ecological zone with relatively uniform cropping practices and socio-economic conditions.
Keywords: Nutrient requirements, Wheat, Yield target
REFERENCES
Ahmed S, Riazuddin M, Krishna Reddy PV (2002). Optimizing fertilizer doses for rice in alluvial soils through chemical fertilizers, farm yard manure and green manure using soil test values. Agropedology 12:133–140.
Dobermann A, Cassman KG (2002). Plant nutrient management for enhanced productivity in intensive grain production systems of the United States and Asia. Plant and Soil. 247(1):153–175. doi: 10.1023/A:1021197525875. [Cross Ref]
Dobermann A, Witt C, Abdulrachman S, Gines HC, Nagarajan R, Son TT, Tan PS, Wang GH, Chien NV, Thoa VTK, et al (2003). Estimating indigenous nutrient supplies for site-specific nutrient management in irrigated rice. Agronomy Journal 95:924–935.
Jackson ML. (1973). Soil Chemical Analysis. New Delhi: Prentice Hall of India Pvt. Ltd.
Kastens TL, Schmidt J, Dhoyvetter KC (2003). Yield models implied by traditional fertilizer recommendations and a framework for including nontraditional information. Soil Science Society of America Journal 67:351–364.
Rao S, Srivastava S. (2000). Soil test based fertilizer use—a must for sustainable agriculture. Fertilizer News 45:25–38.
Ray PK, Jana AK, Maitra DN, Saha MN, Chaudhury J, Saha S, Saha AR. (2000). Fertilizer prescriptions on soil test basis for jute, rice and wheat in Typic Ustochrept. Journal of Indian Society of Soil Science 48:79–84.