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Journal of Pharmacognosy and Phytochemistry

Journal of Pharmacognosy and Phytochemistry

Vol. 8, Special Issue 2 (2019)

Enhancing productivity of low land rice through silicon nutrition

Author(s):

R Dhanasekarapandian and N Kumarasamy

Abstract:
A field experiment was conducted in clay loam soil belonging to <em>Kondal</em> series (Vertisols- <em>Typic Haplusterts</em>) during 2017 with an objective of studying the effect of foliar and soil application of silicon on growth, yield, nutrient uptake and their availability in rice var. <em>ADT 43</em>. The treatments consisted of T<sub>1</sub>- Control- (RDF 120:32:32 N, P<sub>2</sub>O<sub>5</sub>, K<sub>2</sub>O kg ha<sup>-1</sup>), T<sub>2 </sub>- 2 ml L<sup>-1</sup> Si, T<sub>3 </sub>- 4 ml L<sup>-1</sup> Si and T<sub>4 </sub>- 8 ml L<sup>-1</sup> Si, T<sub>5 </sub>-1.63 kg available Si ha<sup>-1</sup> (5 t LFA ha<sup>-1</sup>), T<sub>6</sub> - 3.26 kg available Si ha<sup>-1</sup> (10 t LFA ha<sup>-1</sup>), T<sub>7</sub> - 4.89 kg available Si ha<sup>-1</sup> (15 t LFA ha<sup>-1</sup>), T<sub>8 </sub>- 1.63 kg available Si ha<sup>-1</sup> (5 t LFA ha<sup>-1</sup>) + T<sub>4</sub>, T<sub>9</sub> - 3.26 kg available Si ha<sup>-1</sup> (10 t LFA ha<sup>-1</sup>) + T<sub>3</sub> and T<sub>10</sub> - 4.89 kg available Si ha<sup>-1</sup> (15 t LFA ha<sup>-1</sup>) + T<sub>2</sub>. All the treatments received uniform dose of NPK (120:32:32 N: P<sub>2</sub>O<sub>5</sub>: K<sub>2</sub>O kg ha<sup>-1</sup>). The treatments T<sub>2</sub>, T<sub>3</sub>, T<sub>4</sub> received foliar spray of silicon, T<sub>5</sub>, T<sub>6</sub>, T<sub>7 </sub>received soil application of silicon and T<sub>8</sub>, T<sub>9</sub>, T<sub>10 </sub>received foliar plus soil application of silicon. The results revealed the positive and significant performance of rice to foliar, soil application of silicon and their combinations in terms of growth, yield, nutrient uptake and availability over control. The impact of treatments on the performance of rice was high and well pronounced when foliar spray of silicon supplied through a formulation named OSABBB was resorted compared to soil application of silicon through lignite fly ash (LFA) and their combinations. The highest uptake and availability of nutrients was again noticed in T<sub>4 </sub>(Foliar spray of silicon @ 8 ml L<sup>-1</sup> + RDF) which was comparable with T<sub>3</sub> (Foliar spray of silicon @ 4 ml L<sup>-1</sup> + RDF) and T<sub>2</sub> (Foliar spray of silicon @ 2 ml L<sup>-1</sup> + RDF).Soilapplicationandfoliar spray of silicon was comparable with foliar spray of silicon @ 2 ml L<sup>-1</sup> for certain parameters. When the effect of treatments on the performance of rice was compartmentalized, it was clearly expressed that on an average the foliar spray of silicon caused 18.4 per cent increase followed by foliar + soil application (15.4%) and soil application (10.3 %) over control.

Pages: 626-628  |  843 Views  124 Downloads

How to cite this article:
R Dhanasekarapandian and N Kumarasamy. Enhancing productivity of low land rice through silicon nutrition. J Pharmacogn Phytochem 2019;8(2S):626-628.

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