Evaluation of Growth Parameters of Rice (Oryza sativa L.) under Lateritic Soil of Jharkhand in Response to Silicon Sources and Levels

Abstract

Numbers of silicon (Si) sources have been reported in terms of their effec-tiveness to improve rice growth and yield. Moreover, it is very critical to un-derstand the efficiency of different silicon sources and their levels for satis-factory plant uptake and its performances in various types of soils. In this point of view, field experiments were conducted during kharif season of 2017-18 and 2018-19 to assess the effect of different silicon sources and levels on growth parameters of rice (Oryza sativa L.) under lateritic soil of Jharkhand, India. Silica was applied at the rate of 0, 50 and 100 kg Si ha−1 through Calcium Silicate, Fly Ash and Paddy Straw. The results indicated that the growth parameters were significantly affected by the sources and levels of Silicon. Application of calcium silicate @ 150 kg Si ha-1 was found most effective followed by Paddy Straw @ 150 kg Si ha-1 followed by Fly Ash @ 150 kg Si ha-1 compared to control (RDF). The highest growth parameters were found with calcium silicate @ 150 kg Si ha-1 in combination with RDF. Accordingly different treatments could be arranged in the order T4>T10>T7>T3>T9> T6>T2>T8>T5>T1. Si application at the level 150 kg Si ha-1 along with RDF would help in the sustainable production of rice in the later-itic soil of Jharkhand.