PHOSPHORUS AND POTASSIUM MANAGEMENT UNDER INTENSIVE RICE CROPPING IN TUNGABHADRA (TBP) IRRIGATION COMMAND
| dc.contributor.advisor | PATIL, S G | |
| dc.contributor.author | MANJUNATHA, HEBBARA | |
| dc.date.accessioned | 2019-01-31T11:22:18Z | |
| dc.date.available | 2019-01-31T11:22:18Z | |
| dc.date.issued | 14-06-05 | |
| dc.description.abstract | Field experiments were conducted to evaluate the effect of N, P and K levels under intensive rice-rice cropping system on crop performance, P-K availability, P-K uptake, P-K use efficiencies and P-K balance studies at Agriculture Research Station, Gangavati, Karnataka during 2000-01. Application of NPK @ 200:100:75 kg/ha (N:P:K ratio of 2.7:1.3:1.0) to BPT-5204 during kharif and 250:100:75 kg/ha (N:P:K ratio of 3.3:1.3:1.0) for IR-64 during rab/Vsummer was optimum and economically most remunerative. Though, higher NPK levels and ratios resulted in higher rice yields, the N:K ratios remained wider than the desired (< 2.0:1.0)'. The farmers control (230:90:110 kg/ha of NPK) was equally remunerative as above and had more balanced N:P:K ratio (2.1:0.8:1.0) than in the above treatments. The RDF application resulted in sub-optimal rice nutrition resulting in significantly lower yield than the above. Phased application of NPK up to BGF stage to a mid-long duration variety BPT-5204 was beneficial. However, this advantage was not realized during raMsummer with a mid duration variety like IR-64. The economic analysis also revealed similar trend. | en_US |
| dc.identifier.other | Th-7580 | |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810093179 | |
| dc.language.iso | en | en_US |
| dc.pages | 294 | en_US |
| dc.publisher | University of Agricultural Sciences GKVK, Bangalore | en_US |
| dc.sub | Soil Science | en_US |
| dc.subject | null | en_US |
| dc.theme | RICE CROPPING | en_US |
| dc.these.type | Ph.D | en_US |
| dc.title | PHOSPHORUS AND POTASSIUM MANAGEMENT UNDER INTENSIVE RICE CROPPING IN TUNGABHADRA (TBP) IRRIGATION COMMAND | en_US |
| dc.type | Thesis | en_US |