Effect of Liquid Fertilizer (NPK) Application Through Drip Irrigation on Nutrient Uptake and Fertilizer Response Ratio in Tomato

摘要

Thejstudy was conducted to find out the fertilizer use efficiency in tomato cv. Dhanshree. The pooled analysis oftiuo years study showed that, the concentration of N, P and K in leaf and fruit and total uptake of N, P and K by plant were significantlyhigher under liquid fertilizer through drip irrigation than solid fertilizers plus drip or surface irrigations. Application of NPK from liquid fertilizer significantly increased the concentration and total uptake of N, P and Kin tomato crop over solid fertilizers. The concentration and total uptake of N, P and K were the highest at 100 per cent NPK level and increased significantly with increase in the level of NPK. Fertilizer response ratio was higher under liquid fertilizer through drip irrigation than solid fertilizers plus drip or surface irrigation and increased with decrease in NPK levels through liquid or solid fertilizers.