Vol. 11, Issue 5 (2022)

Author(s):
Vinod Kumar, PC Chaplot and R Jalwania

Abstract:
A field experiment was conducted during rabi season of 2013-14 to study effect of balanced fertilization on growth, yield and nutrient uptake by dual purpose barley varieties at the instructional farm, Rajasthan college of agriculture, Udaipur. The experiment was laid out in RBD (Factorial) with 14 treatment combinations replicated thrice. The treatment consisted of seven balanced fertilization (no fertilization, N, NP, NPK, NPKS, NPKZn, NPKSZn) applied at recommended level and two varieties (RD 2715, RD 2552). The results indicated that after green fodder cutting dual purpose barley variety RD 2552 recorded significantly higher growth, yield attributes and productivity in terms of grain, straw and biological yield by 2.2, 6.3 and 8.4 q ha^-1 respectively over variety RD 2715.The variety RD 2552 also registered highest quantum of N, P, K, S and Zn by grain and straw as compared to RD 2715. The crop under the influence of N, NP, NPK, NPKS, NPKZn and NPKSZn at recommended level significantly increased yield attributes, yield and nutrient uptake over no fertilization. Among balanced fertilization, conjoint application of NPKSZn significantly increased grain, straw and biological yield by 5.5, 9.4 and 15.1 q ha^-1, respectively over NPK fertilization. This nutrient combination was found at par with NPKS which increased yield parameter by 4.0, 6.8 and 11.2 q ha^-1, respectively over NPK. Further nutrient combination NPKSZn also accumulated higher quantum of N, P, K, S and Zn by grain and straw over NPK. The magnitude of difference between NPKSZn- NPKS and NPKS- NPKZn was not significant in this regard.