Vol. 10, Issue 11 (2021)

Author(s):
Kadali Mani Kumar, Vikram Singh and Dhananjay Tiwari

Abstract:
An experiment entitled “Effect of establishment method and levels of zinc on growth and yield of Rice (Oryza sativa L.)” was designed and conducted during Kharif season in the year 2020 at Crop Research Farm of Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj. The experiment was laid out in Randomized Block design with ten treatments and each replicated thrice. The treatments consisted of three planting techniques viz. Direct sowing, conventional transplanting and SRI (System of Rice Intensification) and three levels of Zinc viz. Zinc 15 kg/ha, 25 kg/ha and 35 kg/ha and a control plot respectively. The treatments were randomly arranged in three replications and divided into 30 plots. The variety of rice used in this experiment was Pusa Basmati-1. The data of the experiment revealed that all plant growth and yield attributes were significantly influenced by planting techniques and levels of zinc. At 100 DAT, significantly maximum plant height (120.79 cm), maximum number of tillers (10.72), maximum plant dry weight per hill (73.77g), maximum leaf area index (3.96), maximum number of effective tillers/hill (9.38), was observed in treatment T₈ - (SRI+ Zinc 25 kg/ha) Significantly maximum number of effective tillers/hill (9.38) was observed in treatment T₈ - (SRI+ Zinc 25 kg/ha). Test weight of rice was found to be non-significant. However, maximum test weight (21.25 g) was observed in treatment T₈ - (SRI+ Zinc 25 kg/ha). Significantly maximum grain yield (7.67), stover yield (11.62) was observed in treatment T₈ - (SRI+ Zinc 25 kg/ha). Significantly maximum harvest index (42.35%) was observed in treatment T₆ - (Conventional method+ Zinc 35 kg/ha) Maximum gross return (1,91,750.00 ₹/ha) Net return (1,40,558.70 ₹/ha) was observed to be highest in treatment T₈ - (SRI+ Zinc 25 kg/ha). Benefit Cost ratio (2.74) was found to be highest in treatment T₈ - (SRI+ Zinc 25 kg/ha) followed by treatment T₇ - (SRI+ Zinc 15 kg/ha) which recorded B:C ratio as 2.43 respectively.