International Journal of Chemical Studies
Vol. 5, Issue 5 (2017)
Influence of integrated nutrient management on soil fertility and properties of sandy clay loam and relationship with productivity of pearlmillet (Pennisetum glaucum) – mustard (Brassica juncea) cropping sequence
Author(s): Priyadarshani A Khambalkar, Narendra Singh, SK Verma and Shashi S Yadav
Abstract: The field study was conducted from kharif season of 2010 to rabi 2012 of pearl millet (Pennisetum glaucum) – mustard (Brassica juncea) cropping sequence to study the effect of integrated nutrient management on fertility status, soil physico-chemical properties and productivity of sandy clay loam. The experiment was parts of long-term fertility experiment started from kharif season 1997 at Gwalior, Madhya Pradesh on permanent plots comprised 16 treatments with three replications in randomised block design consist unfertilized control, imbalanced fertility treatments and optimal to sub optimal dose of chemical fertilizer alone treatments or in combinations with farmyard manure (@10t/ha/year) or bio fertilizers. The soil samples were collect from all treatments at 0-15 and 15-30 cm depth to identify the fertility status and soil physico-chemical properties. 100% NPK +FYM @10t/ha/year + Azotobactor +PSB recorded significantly highest amount of organic carbon (5.34 to 4.47 g/kg), available N (253 to 195 kg/ha), P (32.3 to 22.3 kg/ha) and K (224 to 213 kg/ha), sustain soil pH (7.50 to 7.52) and EC (0.24 to 0.18 dS/m) from surface to subsurface soil, respectively; reduced % CaCO3 (1.00%), improve the soil BD (1.25 Mg/m3) percent porosity (53%), infiltration rate (0.94 mm/hr) and MWHC (0.51m3/m3) and enhance the productivity as seed (4.0 and 2.1 t/ha) and straw (8.8 and 7.0 t/ha) yield of pearl millet and mustard, respectively over the other fertility treatments and control. Application of 150% NPK significantly produced the higher yield; improve available N-P-K, OC and physico-chemical properties of soil over 100%NPK alone, imbalanced fertility treatments (100%N, 100%NP and 100%NPK-S), sub-optimal dose fertility treatments and control but performance was poor over integrated treatments having combination of optimal dose of chemical fertilizer with farmyard manure or bio fertilizers. Highly significant positive correlation of total productivity was observed with available N- P-K and MWHC and moderately positive significant correlation with OC and percent porosity; whereas moderately negative significant correlation observed with BD and %CaCO3.
Pages: 1237-1243 | 424 Views 29 Downloads
How to cite this article:
Priyadarshani A Khambalkar, Narendra Singh, SK Verma, Shashi S Yadav. Influence of integrated nutrient management on soil fertility and properties of sandy clay loam and relationship with productivity of pearlmillet (Pennisetum glaucum) – mustard (Brassica juncea) cropping sequence. Int J Chem Stud 2017;5(5):1237-1243.