Yield and Nutrient Uptake Influenced by Conservation Agriculture Practices in Rice-Winter Maize Cropping System

Author: B.L. Dudwal*, T.K. Das and A.R. Sharma

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Abstract

The studies were undertaken at the research farm of Indian Agricultural Research Institute, New Delhi in kharif and rabi season on a fixed site to assess the effect of conservation agriculture practices on yields and nurient uptake by crops in rice (Oryza sativa L.) – winter maize (Zea mays L.) cropping system. Direct seeding under unpuddled condition, transplanting under puddled condition, brown manuring and mungbean residue incorporation before sowing of direct-seeded rice were practiced in rice, while zero-till sowing, conventional till sowing and rice residue application with zero-till maize were tested in maize crop. During first year nutrient uptake under transplanted rice (TPR) was significantly higher than the rest of the treatments. In second year, rice grown after maize and the treatments where rice residue was applied in previous season maize crop and mungbean residue incorporation showed comparable N, P and K uptake with the TPR treatments. The highest values for N, P and

Keywords

Direct-seeded rice, Winter maize Nutrient uptake, Brown manuring, Zero-tillage, Productivity.

Conclusion

This study indicates that transplanted rice gave significantly higher yield (5.37 t ha-1) and uptake of major nutrients in initial year than direct seeded rice. However, in second year, treatment mungbean residue incorporation plus direct seeded rice followed by zerotill maize plus rice residue (MBR+DSR-ZTM+RR-MB) uptake comparable major nutrients and gave grain yield of 5.04 t ha-1. Tillage affect the nutrient uptake and productivity of maize during both the years and different residue management practices could not bring out significant difference in nutrient uptake and maize productivity in starting year. Among residue management treatments, higher nutrient uptake and yield of maize (3.62 t ha-1) was recorded with the incorporation of mungbean residue in rice, followed by zero-till maize with rice residues (MBR+DSR-ZTM+RR-MB) in second year of study.

References

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How to cite this article

B.L. Dudwal, T.K. Das and A.R. Sharma (2022). Yield and Nutrient Uptake Influenced by Conservation Agriculture Practices in Rice-Winter Maize Cropping System. Biological Forum – An International Journal, 14(1): 554-559.