Vol. 8, Issue 4 (2020)
Effect of Nitrogen forms under INM approach on a Vertisols of Chhattisgarh plains
Author(s): Parmanand Verma, Nainsi Naya, Chhaviraj Baghel and Sanjeeta Deep
Abstract: Effect of Nitrogen forms under INM approach on a Vertisols of Chhattisgarh plain was studied under long-term fertilizer experiment during kharif 2019 at research farm of Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.). The experiment comprised of different levels or doses of NPK fertilizers alone and in combination with zinc sulphate, farmyard manure (FYM), blue green algae (BGA) and green manuring (GM) was laid out in randomized block design with four replications and ten treatments viz. Control (T1), 50, 100, 150% NPK (T2, T3, T4, respectively), 100% NPK + ZnSO4 (T5), 100% NP-K (T6), 100% N-PK (T7), 100% NPK + FYM (T8), 50% NPK + BGA (T9) and 50% NPK + Green manure (T10). Different nitrogen form was estimated after urea applies. Application of 100% NPK + FYM significantly highest available nitrogen (252 kg ha-1), a decreases of available N was observed at increase in the depth of soil from 0-15 to 15-30 cm. Ammonical N (142 and 134 mg kg-1) was recorded highest at 0-15cm respectively, after urea applied 24 and 48 hrs. Application of 150% NPK had higher content of ammonical nitrogen. Nitrate - N (212 and 217 mg kg-1) was recorded highest in 150% NPK at 0-15cm after 24 and 48 hrs respectively. Highest grain and straw yields of rice was recorded when 150% NPK (6970 and 8364 kg ha-1, respectively). The yield of rice had highest correlation with Ammonical N (r=0.802**) followed by available N (r=0.731**) and Nitrate N (r= 0.570**).
DOI: 10.22271/chemi.2020.v8.i4k.9774
Pages: 1253-1256 | 483 Views 73 Downloads
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How to cite this article:
Parmanand Verma, Nainsi Naya, Chhaviraj Baghel, Sanjeeta Deep. Effect of Nitrogen forms under INM approach on a Vertisols of Chhattisgarh plains. Int J Chem Stud 2020;8(4):1253-1256. DOI: 10.22271/chemi.2020.v8.i4k.9774
