Laxmanarayanan M.

• Assam Agricultural University

Silicon (Si) affects soil formation, carbon (C) cycling, nutrient dynamics, vegetation growth and plant stress resilience, all of which are critical to the general health and sustainability of forest ecosystems. Despite its abundance and diverse functions, the pivotal role of Si in forest ecology is frequently overlooked. This review aims to clarif...

Background Gypsum is a valuable resource for farmers, supplying essential calcium and sulfur for plant growth. It serves as a crucial soil amendment, particularly in reclaiming alkali and sodic soils. While not a liming material, gypsum is widely recognized as a nutrient source for calcium and sulfur in acidic soils. The presence of calcium in vari...

Silicic acid (SA) is an important source of silicon (Si), a quasi-essential element inducing growth, yield and abiotic and biotic stress tolerance in crops. SA was obtained from ReXil Agro BV, Chennai, India and a field experiment with factorial randomized block design (FRBD) was carried out in Jorhat, Assam to find out the influence of foliar appl...

Background: Slag based gypsum (SBG) is a value-added product of iron and steel industry. Application of gypsum as source of calcium and sulphur for groundnut cultivation is common practice and mainly applied during peg initiation stage of groundnut. However, its effect is mainly influenced by the type of soil and dissolution of gypsum, which facili...

Slag-based gypsum (SBG) produced from steel industry have better plant nutritional value in terms of calcium (Ca), sulphur (S), phosphorus (P), iron (Fe), silicon (Si) and other trace metals (Ashrith et al. 2020). Prakash et al. (2020) reported that the application of varied levels of SBG increased the yield and soil chemical properties especially...

Yellow gypsum (YG), a synthetic product from Linz-Donawitz slag containing high iron (Fe) (5.41%), zinc (Zn) (0.37%) and silicon (Si) (3.41%) can be used as a source of these nutrients along with calcium (Ca) and sulphur (S) for groundnut production. Three field experiments were conducted to know the effect of different rates (500 and 625 kg YG ha...

Slag-based gypsum (SBG) is a unique synthetic gypsum which is alkaline in nature, besides calcium (Ca) and sulphur (S); it contains appreciable amounts of iron (Fe), silicon (Si), phosphorus (P) and zinc (Zn). In this study, we evaluated the efficacy of SBG as a source of S, Ca and Si for groundnut in comparison with natural gypsum (NG). The effect...