Integrated Nutrient Management of Upland Rice
| dc.contributor.advisor | S. K. Pal | |
| dc.contributor.author | Kumar Kulwant Kishor | |
| dc.date.accessioned | 2024-08-29T06:41:49Z | |
| dc.date.available | 2024-08-29T06:41:49Z | |
| dc.date.issued | 2003 | |
| dc.description.abstract | Productivity of rainfed upland rice is far below the national average, which needs to be increased through proper nutrient management to feed the ever increasing population. Hence a field experiment was conducted at Birsa Agricultural University farm, Ranchi during Kharif season of 2001, on sandy loam soil (Silt 25.2%, clay 16.5%), acidic in reaction (pH 5.8), medium in available nitrogen (330.69 kg N/ha), low in: phosphorus (34.5 kg P₂O,/ha) and potassium (220 kg K₂O/ha) to find out suitable nutrient management of upland rice for higher growth, productivity, profitability and nutrient utilization. treatments Ten s consisting of different combination of organic and inorganic nutrient as well as inorganic alone viz: (i) Farmer's practice kg urea/ha) (ii) Improved practice (100% NPK, N60 P30 K20 kg/ha), (iii) 150% NPK/ha (iv) St FYM /ha 100% NPK (v) St FYM /ha + 50% NPK, (vi) 2.5t FYM + 50% NPK, (vii) 2.5t vermicompost /ha + 100% NPK, (viii) 2.5t vermicompost /ha + 50% NPK, (ix) 1.25t vermicompost /ha + 50% NPK and (x) Rice: Green manure (2:1) + 100% NPK/ha were laid out in a randomized block design and replicated four times. Upland rice grown with 150% recommended NPK/ha produced timum grain (1302 kg/ha) and straw yield (4031 kg/ha) with biomass and grain production rate of 56.14 and 37.2 kg/ha/day respectively. This was followed application of St FYM /ha + 100% NPK and 2.5t vermicompost/ha by + 100% NPK This was attributed to high yield attributing characters like productive tillers (170.25/m²), panicle length (16.95cm), panicle weight (1.49g), number of grains per panicle (50.25), filled grains per panicle (43.82), grain weight per panicle (1.2g) and 1000-seed weight (24.95g). Upland rice with 150% recommenced fertilizer also produced maximum dry matter (666.65 g/m²) and its partitioning into grain owing to higher leaf area index, crop growth rate, relative crop growth rate and net assimilation rate. Similarly, maximum net return (Rs. 2368/ha) and benefit:cost ratio (Rs. 0.38 per rupee investment) was recorded with 150% NPK, which was on par with application of St FYM/ha + 100% NPK. Application of 150% recommended NPK also recorded maximum nutrient uptake (38.84:9.86: 81.50 kg NPK/ha) as well as soil available nutrient after crop harvest (326.14 33.10 218.40 kg NPK/ha) and hence minimized nutrient loss (4.55: 1.4 1.6 kg NPK/ha) during crop period. This was followed by application of St FYM/ha + 100% NPK and 2.5t vermicompost /ha + 100 % NPK respectively. Based on the findings of present investigation it can be concluded that growing of upland rice either with 150% recommended NPK (90 45 30 kg NPK/ha) or integration of St FYM/ha + 100% NPK is suitable nutrient management system for better growth, higher productivity as well as profitability, nutrient utilization and soil health. | |
| dc.identifier.uri | https://krishikosh.egranth.ac.in/handle/1/5810213996 | |
| dc.language.iso | English | |
| dc.pages | 106 | |
| dc.publisher | Birsa Agricultural University, Ranchi | |
| dc.sub | Agronomy | |
| dc.theme | Integrated Nutrient Management of Upland Rice | |
| dc.these.type | M.Sc | |
| dc.title | Integrated Nutrient Management of Upland Rice | |
| dc.type | Thesis |