• Dr.S.Jawahar
• K.Suseendran
• C.Kalaiyarasan
• S.Elankavi
• S.Ramesh

Field experiment was conducted during Kuruvai, 2013 to study the influence of silicon on nutrient uptake and silicon use efficiency of aerobic rice. The treatments consisted of four rice varieties (ADT 47, ASD 16, CO 47 and IR 64) and four levels of silicon (0,120, 240 and 360 kg Si ha-1 through Diatomaceous Earth). The experiment was laid out in randomized block design with factorial arrangements and replicated thrice. Among the different rice varieties tried, ASD 16 recorded higher NPK and Si uptake and also recorded higher agronomic efficiency and apparent Si recovery. Regarding different levels of silicon, application of silicon at 360 kg ha-1 significantly increased the NPK and Si uptake of rice, however the maximum agronomic efficiency and apparent Si recovery was observed under 120 kg Si ha-1. Among the different treatment combination of rice varieties and silicon levels, the maximum NPK and Si uptake was noticed with ASD 16 fertilized with silicon at 360 kg ha-1 and higher SiUE was noticed under ASD 16 with 120 kg Si ha-1 . Hence the results of the study showed that though the higher levels of silicon enhanced the nutrient uptake of rice under aerobic condition, the silicon use efficiency was higher at the lower levels.

silicon, aerobic rice, nutrient uptake, SiUE

"Influence of silicon on nutrient uptake and silicon use efficiency of aerobic rice ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.686-688, December-2018, Available :http://www.jetir.org/papers/JETIR1812A92.pdf

"Influence of silicon on nutrient uptake and silicon use efficiency of aerobic rice ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp686-688, December-2018, Available at : http://www.jetir.org/papers/JETIR1812A92.pdf