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Journal of Pharmacognosy and Phytochemistry

Journal of Pharmacognosy and Phytochemistry

Vol. 7, Special Issue 1 (2018)

On farm crop response to plant nutrients in rice-maize cropping system

Author(s):

DK Mahto, SK Chaudhary, SK Yadav, Vikash Kumar, RP Sharma

Abstract:
An on farm research entitled “On Farm Crop Response to Plant Nutrients in Rice Maize Cropping System” was conducted during 2014-15 at farmers’ field of Purnea in Zone II of Bihar. The seven treatments, <em>viz.,</em> T<sub>1</sub>-Control, T<sub>2-</sub>Recommended N alone, T<sub>3-</sub>Recommended N and P, T<sub>4-</sub>Recommended N and K, T<sub>5</sub>-Recommended N, P and K, T<sub>6- </sub>Recommended NPK with ZnSO<sub>4 </sub>and T<sub>7-</sub>Farmers’ practice were taken for study. ZnSO<sub>4</sub> was not applied in maize crop owing to observe its residual impact, applied in rice. Application of 100 kg ha<sup>-1</sup> N, 40 kg ha<sup>-1</sup> P<sub>2</sub>O<sub>5</sub> and 20 kg ha<sup>-1</sup> K<sub>2</sub>O along with 25 kg ha<sup>-1</sup> ZnSO<sub>4</sub> in rice recorded significantly higher grain (47.5q ha<sup>-1</sup>) yield, and in the same plot in succeeding maize, application of 120 kg ha<sup>-1</sup> N, 75 kg ha<sup>-1</sup> P<sub>2</sub>O<sub>5</sub> and 20 kg ha<sup>-1</sup> K<sub>2</sub>O recorded significantly higher grain (86.11 q ha<sup>-1</sup>) yield. Similarly, the maximum system rice equivalent yield (173.22 q ha<sup>-1</sup>) and productivity (47.46 kg ha<sup>-1</sup> day<sup>-1</sup>) were also achieved under (T<sub>6</sub>) nutrient combination. Highest N, P and K uptake was observed in T<sub>6 </sub>87.75, 32.05 and 110.0 kg ha<sup>-1</sup> respectively, in both the crop in both season. Significantly highest gross return (1, 87,458 ha<sup>-1</sup>), net return (1, 25,788 ha<sup>-1</sup>) and B: C ratio (2.49) was also found in NPK+Zn.

Pages: 3261-3264  |  1084 Views  149 Downloads

How to cite this article:
DK Mahto, SK Chaudhary, SK Yadav, Vikash Kumar, RP Sharma. On farm crop response to plant nutrients in rice-maize cropping system. J Pharmacogn Phytochem 2018;7(1S):3261-3264.

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