Effect of integrated nutrient management on nutrient uptake and post harvest soil available nutrient status in fodder maize

Field experiments were conducted during Navarai and Samba season of 2010 at farmer’s field in C. Mutlur Village of Chidambaram, Tamil Nadu to the study the effect of integrated nutrient management on nutrient uptake and post harvest nutrient status in fodder maize. The experiments were conducted in randomized block design replicated thrice with seven treatments viz., (T1) Recommended fertilizer dose of NPK, (T2) 75% of recommended dose + vermiwash, (T3) 50% recommended fertilizer dose, (T4) 75% of recommended fertilizer dose+ Humic acid, (T5) 50% recommended fertilizer dose+ Humic acid, (T6) 75% recommended fertilizer dose+ Panchagavya, (T7) 50% recommended fertilizer dose+ Panchagavya. The nutrient uptake by crop viz., N, P2O5, K2O were markedly influenced by 75% of recommended fertilizer dose + humic acid (T4). The least of nutrient uptake was recorded under recommended fertilizer dose of NPK (T1) in both seasons. The post harvest soil available nutrient status was found to be higher with 75% of recommended fertilizer dose (T1) in both the seasons as compared to other treatments. The least post harvest soil available nutrient status was recorded under (T4) 75% of recommended fertilizer dose+ humic acid in both the seasons.