Effect of farming practices on maize-wheat productivity, nitrogen dynamics, carbon sequestration and soil health in an acid Alfisol
dc.contributor.advisor | Sharma, Sanjay K. | |
dc.contributor.author | Vishvamitera, Sakshi | |
dc.date.accessioned | 2024-08-27T07:18:37Z | |
dc.date.available | 2024-08-27T07:18:37Z | |
dc.date.issued | 2023-07-13 | |
dc.description.abstract | Imbalanced and sole application of chemical fertilizers has been found to adversely affect the crop productivity as well as the soil health. There is a ample scope to improve the production potential by manipulating nutrient management systems in such a way that these are more effective, environmental friendly, and largely acceptable. Therefore, the present study was undertaken to evaluate the effect of farming practices on productivity of maize and wheat, nitrogen dynamics, carbon sequestration and soil health. The experiment consisted of eleven treatments replicated thrice in a completely randomized block design, involving recommended NPK dose, 100% NPK+FYM@ 10 t ha-1 , 100% NPK+lime, organic farming practices, three natural farming systems involving formulations prepared using excreta of desi and crossbred cows, and buffalo, and their integration with 25% of recommended NPK dose. Application of 100%NPK + FYM@ 10 t ha-1 resulted in better crop growth and yield attributes, and registered the highest grain and stover/straw yield of maize and wheat, but these were statistically similar to 100% NPK + lime during both the years. For comparison of different treatments, maize grain equivalent yield and wheat grain equivalent yield were computed as NFS treatments included intercrops. Grain and stover/straw equivalent yield of maize and wheat were significantly higher under 100% NPK+ FYM@ 10 t ha-1 , which were however, statistically similar to 100% NPK+lime during both the years. Application of 100% NPK+ FYM@ 10 t ha-1 recorded 51.7% and 113.9% higher mean maize grain and stover equivalent yield, respectively, and 23.0% and 57.6% higher mean wheat grain and straw equivalent yield, respectively, than NFS-Desi cow. Integration of 25% NPK in these treatments significantly enhanced the yield over pure organic/natural farming treatments. The NPK and cationic micronutrient uptake by grain and stover/ straw of maize and wheat was highest in100%NPK + FYM@ 10 t ha-1 , and lowest in NFS-Buffalo treatment. Application of 100% NPK + lime increased the soil pH. Water holding capacity, mean weight diameter, organic carbon, available S, microbial count, microbial biomass carbon and nitrogen and enzyme activities were recorded highest in organic farming + 25% NPK treatment, however, available NPK were recorded highest under 100% NPK+FYM@ 10 t ha-1 , at both 0-0.15 m and 0.15-0.30 m soil depth. The highest content of inorganic N fractions were recorded under 100% NPK+FYM, while organic farming+ 25% NPK recorded the highest organic N fractions, and mean weight diameter at both the soil depths. Carbon sequestration was highest under 100% NPK+ FYM, while lowest was recorded under 100% NPK. Integration of 25% NPK with organic /natural farming systems significantly improved the soil physico-chemical properties at both soil depths over pure organic/natural farming systems. Among natural farming systems, NFS-Desi cow performed better in all the parameters as compared to NFS-Crossbred cow and NFS-Buffalo. Therefore, there was a notable effect of farming practices on maize-wheat productivity, nitrogen fractions, carbon sequestration and soil properties in an acid Alfisol, with conventional integrated nutrient management system giving the better results for most of the parameters under study. | |
dc.identifier.other | A-2019-40-031 | |
dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810213752 | |
dc.keywords | maize-wheat | |
dc.keywords | carbon sequestration | |
dc.keywords | acid Alfisol | |
dc.language.iso | English | |
dc.pages | 250 | |
dc.publisher | CSK HPKV, Palampur | |
dc.sub | Soil Science and Agriculture Chemistry | |
dc.theme | To study the effect of farming practices on 1. Productivity of maize and wheat 2. Nitrogen dynamics, carbon sequestration and soil health. | |
dc.these.type | Ph.D | |
dc.title | Effect of farming practices on maize-wheat productivity, nitrogen dynamics, carbon sequestration and soil health in an acid Alfisol | |
dc.type | Thesis |