Effect of continuous application of fertilizer nutrients on the long term productivity of a rice cropping system
| dc.contributor.author | Tajuddin, E | |
| dc.contributor.author | Abdul Salam, M | |
| dc.contributor.author | Shahul Hameed, S M | |
| dc.contributor.author | Yageen Thomas | |
| dc.contributor.author | Devandesan, S | |
| dc.contributor.author | KAU | |
| dc.date.accessioned | 2019-01-31T05:54:07Z | |
| dc.date.available | 2019-01-31T05:54:07Z | |
| dc.date.issued | 1990 | |
| dc.description.abstract | Field experiments conducted for a period of seven years to study the effect of continuous application of fertilizer nutrients on the long term productivity of a rice based cropping system revealed that nitrogen application increased grain yield in all the seasons for a period of seven years. Both the physical and economic optimum dose of N decreased @ 4.06 and 3.7% per season, respectively. Nitrogen application @ zero and 120 kg/ha per season continuously over a period of five years, decreased the grain yield @ 1.47 and 1.28 g/ha/year, respectively. But application of N @ 40 kg/ha during the same period increased grain yield 6 1.22 q/ha/year. The productivity of plots applied with N @ 80 kg/ha remained stable. The study clearly revealed the possibility of skipping P for four years and K for seven years in soils containing medium amounts of these nutrients. Application of N at optimum dose is important to maintain the long term productivity of a rice based cropping system involving rice-rice-fallow. | en_US |
| dc.identifier.citation | Agricultural Research Journal of Kerala, 28(1), 31-35. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810093044 | |
| dc.keywords | Rice cropping system, effect of nitrogen in rice cropping, effect of phosphorus in rice cropping. | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 5 | en_US |
| dc.publisher | Kerala Agricultural University | en_US |
| dc.subject | null | en_US |
| dc.title | Effect of continuous application of fertilizer nutrients on the long term productivity of a rice cropping system | en_US |
| dc.type | Article | en_US |
| dc.volume | 28(1) | en_US |