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Response of Paddy Soils to Silicon Fertilization

Year 2013, Volume: 19 Issue: 4, 268 - 280, 03.12.2013
https://doi.org/10.1501/Tarimbil_0000001252

Abstract

Silicon (Si) is of nutrient element required very large amounts by rice plant. Thus silicon deficiency can commonly observed in paddling soils. In this study, silicon status and reponse to the silicon fertilizer of Bafra and Terme districts of Samsun for rice cultivation were investigated by means of a pot experiment set up in completely randomised design with three replications. For this purpose, 18 paddy soil samples were taken. Rice plants were grown in a pot filled with 2 kg of oven-dry soil and fertilized with 0-50-100-200 and 400 mg Si kg-1 as silicic acid (H4SiO2), 75 mg N kg-1 ammonium sulfate (21%) and 60 mg P2O5 kg-1 tripl superfosfate (42%) before sowing. Initially fifteen germinated seeds of Osmancık 77 rice cultivar, were planted into each pot. Rice grains with husk were harvested after 142 days from planting. The results showed that rice grain yield (1.56 - 45.85%) significantly increased (P<0.01) by silicon fertilization in 83% of the paddy soils in the region. It was found that paddy soils require different doses of Si (50-200 mg kg-1) and averagely 87 mg kg-1 of optimum Si dose for the region soils. Also, a critical concentration of 17.11 mg of available Si is required to obtain a relative grain yield of 85% in the experimental soils and below this level silicon deficiency limits grain yield. 

Çeltik Topraklarının Silisli Gübrelemeye Responsu

Year 2013, Volume: 19 Issue: 4, 268 - 280, 03.12.2013
https://doi.org/10.1501/Tarimbil_0000001252

Abstract

ÖZET

Bu çalışmanın amacı Samsun yöresi çeltik topraklarının silisyum durumunu ve silisyumlu gübreye olan ihtiyacını belirlemektir. Bu amaçla Bafra ve Terme ilçeleri çeltik tarlalarından 19 toprak örneği alınarak, sera şartlarında tesadüf parselleri deneme desenine göre 3 tekerrürlü deneme kurulmuştur. Deneme topraklarından her saksıya 2 kg fırın kuru toprak tartıldıktan sonra ekimden önce 0-50-100-200-400 ppm Si dozlarında silisik asit (H4SiO2) gübresi, 75 ppm N (%21 N NH4SO4 formunda), 60 ppm P2O5 (%42 P2O5TSP formunda) verilmiştir. Her saksıya ön çimlendirmeye tabi tutulan Osmancık 77 çeltik çeşidi tohumu 15.07.2011 tarihinde ekilmiş ve her saksıda 15 çeltik bitkisi yetiştirilmiştir. Çeltik hasadı 05.12.2011 tarihinde yapılarak dane verimleri kavuzu ile birlikte belirlenmiştir. Deneme sonucunda yöre çeltik çeltik topraklarının %79’unda silisli gübreleme ile çeltik dane veriminin önemli derecede (P<0,01) arttığı (%1,56-45,85),  toprakların değişik dozlarda (50-200 ppm) silisyumlu gübreye gereksinimleri olduğu ve optimum silis dozunun 100 ppm olduğu sonucuna varılmıştır.

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Details

Primary Language English
Journal Section Makaleler
Authors

Ayhan Horuz

Ahmet Korkmaz

Rüştü Karaman This is me

Publication Date December 3, 2013
Submission Date July 12, 2013
Published in Issue Year 2013 Volume: 19 Issue: 4

Cite

APA Horuz, A., Korkmaz, A., & Karaman, R. (2013). Response of Paddy Soils to Silicon Fertilization. Journal of Agricultural Sciences, 19(4), 268-280. https://doi.org/10.1501/Tarimbil_0000001252

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