Site specific nutrient management software for coffee

Chemical fertilizers are integral part of agriculture and continue to be inevitable source of nutrients. A site specific soil test based nutrient management system ensures the judicious use of fertilizers by contributing to the sustainable and economic production without polluting the soil resources. Coffee is a major commercial crop of India and the site specific fertilizer recommendations for this crop have proved to have advantages over ‘blanket fertilization’ by improving the fertilizer use efficiency and profitability. The software was designed in such a way that entries corresponding to the block-wise soil test data viz., soil pH, available N, P and K generate necessary information on the quantity of suitable and available fertilizers that need to be applied to each block to meet the demand of the crop and plant

Site specific nutrient management software for coffee

Chemical fertilizers are integral part of agriculture and continue to be inevitable source of nutrients. A site specific soil test based nutrient management system ensures the judicious use of fertilizers by contributing to the sustainable and economic production without polluting the soil resources. Coffee is a major commercial crop of India and the site specific fertilizer recommendations for this crop have proved to have advantages over ‘blanket fertilization’ by improving the fertilizer use efficiency and profitability. The software was designed in such a way that entries corresponding to the block-wise soil test data viz., soil pH, available N, P and K generate necessary information on the quantity of suitable and available fertilizers that need to be applied to each block to meet the demand of the crop and plant

Stress Analysis of Laminated Composite and Sandwich Beams using a Novel Shear and Normal Deformation Theory

A novel Normal and Shear Deformation Theory (NSDT) for analysis of laminated composite and sandwich beams, taking into account shear deformation as well as normal deformation, is developed. The paper investigates flexural behaviors of thick laminated and sandwich beams under plane stress conditions using NSDT. A generalized displacement-based refined formulation is elucidated with inclusion of various warping functions in terms of thickness coordinates to represent shear and normal deformation effects. These effects become pronounced in thick laminated beams and particularly in sandwich beams with transversely flexible core. Present formulation satisfies the shear stress free surface conditions at the top and bottom surfaces of the beam with realistic through-the-thickness variation of transverse shear stresses. The results obtained are compared with higher order theories available in literature. It is observed that NSDT predicts displacement and stresses accurately compared to other higher order theories