Effect of silicon on real time nitrogen management in a rice ecosystem

Yogendra, N. D.; Kumara, B. H.; Chandrashekar, N.; Prakash, N. B.; Anantha, M. S.; Jeyadeva, H. M.

doi:10.5897/ajar12.1841

Cited by 10 publications

(2 citation statements)

References 30 publications

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“…Prakash et al [34] reported increase in rice yield on additions of calcium silicate (CS) @ 3 -4 t ha -1 in coastal and hilly soils of Karnataka. Yogendra et al [35], Jawahar et al [36], Nagula et al [37], Malav et al [38] and Ali et al [39] opined that application of silicon alone produced the highest yield in rice. Foliar spray at different concentration increased the grain yield.…”

Section: Rice Yieldmentioning

confidence: 99%

Assessing the Impact of Co-fertilization of Silicon with Macronutrient Fertilizers on Yield, Nutrient Uptake, use Efficiency and Grain Quality of Rice in Sandy Clay Loam Soil

Arthi¹,

Sriramachandrasekharan

Senthilvalavan

et al. 2023

IJPSS

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This study wanted to clarify the impact of silicon (Si) fertilization on nutrient uptake, silicon use efficiency, yield and quality of rice and to detect the rate and mode of application of Si fertilizer in silicon deficient soil. The field experiment was conducted with ten treatment combinationsof100% NPK,100% NPK + potassium silicate (PS)@ 0.25%,0.50% and 1.0% Foliar spray (FS) at tillering stage,100% NPK + PS@ 0.25% ,0.50% and 1.0%FS at tillering and panicle initiation stages,100% NPK + PS@ 50,100 and 150 kg Si ha-1soil application (SA). Application of 50 kg Si ha-1 through PS recorded the highest grain (6183 kg ha-1) and straw (6740 kg ha-1) yield, and higher uptake of macronutrients (NP&K) in rice and it was on par with foliar spray of 1% Si sprayed at tillering stage. Silicon uptake increased linearly with Si levels and the maximum uptake was recorded with 150 kg Si ha-1 and foliar spray at 1% Si. Foliar spray recorded higher Si use efficiency compared to soil application. Rice grain quality viz., protein, amylose and carbohydrate were significantly influenced by silicon addition. The results proved that both foliar and soil application of Si through potassium silicate in sandy clay loam soil could enhance the rice yield, nutrient uptake and grain quality by means of improving nutrient use efficiency.

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Section: Rice Yieldmentioning

confidence: 99%

Assessing the Impact of Co-fertilization of Silicon with Macronutrient Fertilizers on Yield, Nutrient Uptake, use Efficiency and Grain Quality of Rice in Sandy Clay Loam Soil

Arthi¹,

Sriramachandrasekharan

Senthilvalavan

et al. 2023

IJPSS

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“…According to studies conducted to evaluate the use of silicon in agriculture, the rice crop shows increase in the number of leaves and in the number of spikelets per panicle, higher plant height and higher content and accumulation of silicon in plant shoots (Artigiani et al, 2012;Yogendra et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Silicon fertilization and soil water tensions on rice development and yield

Oliveira

Koetz

Bonfim-Silva

et al. 2016

Rev. bras. eng. agríc. ambient.

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A B S T R A C TThe cultivation of upland rice (Oryza sativa) in Brazil occurs mainly in the Cerrado, a region with adverse weather conditions. The use of silicon in its cultivation becomes important, since this nutrient provides higher rigidity, lower transpiration and higher resistance to dry spells in rice plants. The objective of the present study was to evaluate the effect of silicon fertilization and soil water tensions on upland rice development and yield in a Cerrado Oxisol. A 5 x 5 fractionated factorial with five soil water tensions (0, 15, 30, 45 and 60 kPa) and five silicon doses (0, 120, 240, 480 and 960 mg dm -3 ) was used, which were distributed in a randomized block design, with four replicates. Plant height, number of tillers, number of panicles, number of grains per panicle, numbers of full and empty grains and percentage of empty grains were evaluated. Silicon fertilization promotes increased tillering in rice plants at the dose of 960 mg dm , respectively. The increase in soil water tensions reduced plant height and the number of full grains, and increased the percentage of empty grains of upland rice.Adubação silicatada e tensões de água no solo no desenvolvimento e rendimento do arroz R E S U M O O cultivo de arroz (Oryza sativa) de terras altas no Brasil ocorre principalmente em área de Cerrado, região que apresenta condições climáticas adversas. A utilização do silício em seu cultivo torna-se importante de vez que este nutriente proporciona maior rigidez, menor transpiração e maior resistência a veranicos em plantas de arroz. No presente estudo, objetivou-se avaliar o efeito da adubação silicatada e tensões de água do solo no desenvolvimento e rendimento de arroz de terras altas em Latossolo Vermelho do Cerrado. Utilizou-se esquema fatorial 5 x 5 fracionado com cinco manejos de irrigação baseados nas tensões de água no solo (0, 15, 30, 45 e 60 kPa) e cinco doses de silício (0, 120, 240, 480 e 960 mg dm -3 ) as quais foram distribuídas segundo delineamento de blocos ao acaso, com quatro repetições. Foram avaliados: altura de plantas, número de perfilhos, número de panículas, número de grãos por panícula, número de grãos cheios e chochos e porcentagem de grãos chochos. Adubação silicatada promove o aumento do perfilhamento em plantas de arroz com a dose de 960 mg dm . Ocorreu um decréscimo de produção de perfilhos e número de panículas com a aplicação de silício até as doses de 460 e 490 mg dm -3 , respectivamente. O aumento das tensões de água no solo reduziu a altura e o número de grãos cheios, e aumentou a porcentagem de grãos chochos de arroz de terras altas.

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