Response of Maize (Zea mays L.) to Graded Doses of Nitrogen Under Varying Levels of Soil Salinity in Vertisol of Ghataprabha Command Area
| dc.contributor.advisor | V.B. Kuligod | |
| dc.contributor.author | Rajesh Rawal | |
| dc.date.accessioned | 2016-11-23T15:43:27Z | |
| dc.date.available | 2016-11-23T15:43:27Z | |
| dc.date.issued | 2013 | |
| dc.description.abstract | A field experiment was conducted to study the influence of graded doses of nitrogen on maize under varying levels of soil salinity in Roogi village of Mudhol taluk during kharif 2012. The experiment comprised of four salinity levels and four nitrogen levels. Growth parameters and yield attributing parameters were found significantly higher at lower salinity level of < 2 dSm-1. Treatment receiving 225 kg N ha-1 had better growth over the treatment receiving 150 kg N ha-1. Crop growth was not influenced by higher doses of nitrogen under saline conditions (> 4 dSm-1). The highest crop yield of 8.31 t ha-1 was observed under < 2 followed by 2-4 dSm-1. Application of increased level of nitrogen resulted significant increase in yield. Application of 225 kg N ha-1 (6.74 t ha-1) recorded maximum yield. Higher doses of nitrogen application under saline condition (> 4 dSm-1) did not enhance the crop yield. Reduction in NPK uptake was recorded with the increase in soil salinity. Application of 225 kg N ha-1 recorded the maximum NPK uptake. The K/Na ratio decreased with increasing salinity and the highest K/Na ratio of 50.0 was found at 225 kg ha-1 N application under < 2 dSm-1 salinity. Available NPK content was maximum at salinity level < 2 dSm-1 and the lowest was at 6-8 dSm-1. Increased soil salinity decreased grain protein content but starch content increased with the increase in soil salinity. The highest protein content was recorded at salinity level < 2 dSm-1. Increased soil salinity registered decrease in the net returns. The higher net returns and B:C ratio was obtained at salinity level < 2 dSm-1. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/87279 | |
| dc.publisher | UAS, Dharwad | en_US |
| dc.research.problem | Response of Maize (Zea mays L.) to Graded Doses of Nitrogen Under Varying Levels of Soil Salinity in Vertisol of Ghataprabha Command Area | en_US |
| dc.sub | Soil Science | en_US |
| dc.these.type | M.Sc | |
| dc.title | Response of Maize (Zea mays L.) to Graded Doses of Nitrogen Under Varying Levels of Soil Salinity in Vertisol of Ghataprabha Command Area | en_US |
| dc.type | Thesis | en_US |