Integrated Effect of Organic and Inorganic Manuring on Crop Yield and Soil Nutrient Balance in the On-going Century-old Permanent Manurial Experiment

M. S. Sabeena *

Department of Soil Science & Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore, India.

G. Sridevi

Department of Soil Science & Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore, India.

D. Jayanthi

Department of Soil Science & Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore, India.

D. Balachandar

Department of Agricultural Microbiology, Tamil Nadu Agricultural University, Coimbatore India.

Ga. Dheebakaran

Department of Agro Climate Research Centre, Tamil Nadu Agricultural University, Coimbatore India.

*Author to whom correspondence should be addressed.


Abstract

Aim: The present study reports the results of continuous application of different rates of N, P and K and organic manure to a Maize-Sunflower cropping system on the changes in soil available nutrients status after harvest of 172th crop of maize.

Materials and Methods: We studied the long-term effect of organic and inorganic manuring on crop yield and soil nutrient management under Maize–Sunflower cropping system in 112 years old Permanent Manurial Experiment Field. Significant build-up in soil fertility in terms of alkaline KMnO4-N, Olsen-P, NH4OAc-K, K2Cr2O7–C and CaCl2-S as well as DTPA-Fe, Mn, Cu, Zn were assessed under eight treatments consist of Unfertilized Control, NP, NP, NPK (Chemical Fertilizer Alone), FYM (N Equivalent Basis), FYM (Every Year), Poultry Manure and NPK+FYM.

ResultS and Discussion: Recorded data from 2008 shows that continuous application as 100%NPK+FYM @12.5 t ha-1 achieved highest grain yield (hybrid maize CO 6), soil organic carbon, available nitrogen, available potassium, available sulphur and micronutrients content. Highest P recorded in poultry manure on nitrogen equivalent basis than INM irrespective of the crops. Inorganic fertilizer application alone resulted in a pH of >8.0, whereas fertilizer and manure application as well as manure application alone resulted in a pH of < 8.0 in soil. The increase in available S in INM, NPK alone might be due to single super phosphate (SSP) and FYM which contained about 12 and 0.74 % of S, respectively. Thus, considering soil-quality conservation and crop yield, 112 years of study indicated that combined application of NPK and organic manure is a better nutrient-management option in this irrigated maize sunflower cropping system.

Conclusion: These results conclude that for better crop yield and soil quality, integrated usage of organic and inorganic nutrient should be advocated in the Maize-Sunflower cropping system under Alfisol.

Keywords: Integrated nutrient management, maize-sunflower cropping system, nutrient balance, maize yield


How to Cite

Sabeena, M. S., Sridevi, G., Jayanthi, D., Balachandar, D., & Dheebakaran, G. (2022). Integrated Effect of Organic and Inorganic Manuring on Crop Yield and Soil Nutrient Balance in the On-going Century-old Permanent Manurial Experiment. International Journal of Plant & Soil Science, 34(20), 645–658. https://doi.org/10.9734/ijpss/2022/v34i2031200

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