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Journal of Pharmacognosy and Phytochemistry

Journal of Pharmacognosy and Phytochemistry

Vol. 10, Issue 2 (2021)

Effect of irrigation frequency and weed management practices on yield, yield attributes and water productivity of rice

Author(s):

Deepak Kumar, KG Yadav, RB Yadav, Dharmendra Kumar Yadav and Anshul Singh

Abstract:
A field experiment was conducted to evaluate the effect of Irrigation frequency and weed management practices on performance of transplanted rice at Crop Research Centre, Chirori of Sardar Vallabhbhai Patel University of Agriculture & Technology. Meerut (U.P.), during kharif season 2018. The experiment was laid out in Split plot design with three replications. The experiment consisted of three Irrigation frequency viz: (I1) Irrigation at 2 day interval, (I2) Irrigation at 5 days interval, and (I3) Irrigation at 7 days interval in main plot and four weed management practice viz.: Bispyribac sodium 25 g ai.ha PoE, Cono weeder (at 25 & 45 DAT), two hand weeding (at 25 & 45 DAT) and weedy check in sub plot. Pusa basmati-1 was used as test variety.
The findings revealed that among the different Irrigation frequencies, the application of (I2) Irrigation at 5 days interval recorded significantly better Yield and yield attributes. The highest yield attributes, grain yield (45.39 q ha-1) and straw yield (55.59 4 q ha-1) was recorded with (I2) Irrigation at 5 days interval, closely followed by (I1) Irrigation at 2 days interval. Whereas In case of weed management treatments two hand weeding recorded significantly higher growth parameters, yield attributes, grain yield (45.39 q ha-1) and straw yield (55.59 q ha') than weedy check. Successive increase in irrigation frequency has increased in moisture content at harvest, being highest at (I2) Irrigation at 5 days interval, (17.3). Maximum water productivity (3.74 kg grain m-3) was recorded under I3 (Irrigation at 7 days interval) followed by I1 (Irrigation at 2-day interval) and I2 (Irrigation at 5 days interval). Although, mean water productivity was 1.95 kg grams/m3. Whereas In case of weed management practices combined application of two hand weeding stored the highest moisture content of 16.1%. Water productivity in weed management practices varied from 1.17 to 1.62 kg grams/m3, being highest under treatment receiving weedy check, respectively. Therefore, it can be concluded that application of Irrigation at 5 days interval with cono weeder was best management option to get higher yield as well as profit from rice.

Pages: 369-373  |  775 Views  266 Downloads


Journal of Pharmacognosy and Phytochemistry Journal of Pharmacognosy and Phytochemistry
How to cite this article:
Deepak Kumar, KG Yadav, RB Yadav, Dharmendra Kumar Yadav and Anshul Singh. Effect of irrigation frequency and weed management practices on yield, yield attributes and water productivity of rice. J Pharmacogn Phytochem 2021;10(2):369-373.

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