Nutrient Uptake and Yield of Tomato as Influenced by Different Fertigation and Schedules

摘要

An experiment was conducted to study the effect offertigation levels and schedules on growth, yield and nutrient uptake of tomato. The treatments include 3 fertigation levels (F_1 60% of RDF, F_2-80% of RDF, and F_3-100% of RDF) and 3 fertigation schedules (S_1-6 equal splits ofRD of NPK at every 18 days interval, S_2-9 equal splits ofRD of NPK at every 12 days interval, S3-12 equal splits ofRD of NPK at every 9 days interval). The results indicated that fertigation of 100% RD of NPK (300:150:150 N,P_1O_5/ K_2O kg/ha) in 12 equal splits at every 9 days interval up to 120 DAT was found significantly superior in case of growth, yield attributes and fruit yield of tomato. However it was at par with 80%, RD of NPK (240:120:120 N, P_2O_5, K_2O kg/ha) in12 equal splits at every 9 days interval up to 120 DAT. Similarly, significantly maximum nitrogen, phosphorous and potassium uptake by tomato plant was registered with fertigation of 100% of RDF and 12 equal splits of NPK at every 9 days interval up to120 DAT. It was further concluded from the study that fertigation of 80%, RD of NPK (240:120:120 N, Pfi^ K20 kg/ha) in 12 equal splits at every 9 days interval up to 120 DAT was found to beneficial for higher growth and fruit yield of tomato under polyhouse condition during summer season.