Assimilation of Macronutrients by Maize as Influenced from Humic Substance Enriched with Micronutrients

The aim of the current investigation was to determine if maize had the ability to assimilate macronutrients under the effect of humic substance that was enriched with micronutrients. A field experiment was conducted with 10 treatments replicated thrice using RCBD this in the College of Agriculture's V C Farm in Mandya, Karnataka, India during Kharif 2017. The findings showed that the treatment getting RDF + FYM @ 10 t ha-1 together with Enriched HS @ 5 L ha-1 30 DAS had substantially greater macronutrient content and absorption in grains and stover than the treatment receiving RDF + FYM @ 10 t ha-1 along with Enriched HS @ 2.5 L ha-1 30 DAS. Whereas lower macronutrients content was recorded for the treatment with RDF alone. Among different treatments, T10 treatment (T2 + Enriched HS @ 5 L ha-1 30 DAS) recorded significantly higher total uptake of N, P, K, Ca, Mg and S (225.30, 58.44, 91.03, 96.04, 60.86 and 59.47 kg ha-1, respectively). Whereas lower N, P, K, Ca, Mg and S uptake (141.90, 26.94, 40.28, 46.24, 22.37 and 22.27 kg ha-1, respectively) were recorded for the treatment with RDF alone (T1).