Soil Test Based Nutrient Dose Refinement in Chilli
| dc.contributor.advisor | V.B. Kuligod | |
| dc.contributor.author | Irappa N. Nagaral | |
| dc.date.accessioned | 2016-11-18T13:05:22Z | |
| dc.date.available | 2016-11-18T13:05:22Z | |
| dc.date.issued | 2012 | |
| dc.description.abstract | Soil fertility survey in the chilli growing areas of Zone-VIII was carried out during May-June 2011 by collecting 57 surface soil samples. The soil pH was neutral to slightly alkaline (6.1-9.5), EC was non-saline (0.09-1.43 dS m-1), available nitrogen status was low to medium (112-672 kg ha-1), phosphorus was medium in status (15.6- 68 kg ha-1) and available potassium was high (168- 576 kg ha-1). All the micronutrients remained sufficient in surveyed fields except iron. Based on soil fertility survey a field experiment was conducted during kharif 2011 at a farmer’s field in Koliwad (Hubli taluk) village in Northern transitional Zone (Zone - VIII). The treatments consisted of refined fertilizer doses based on soil fertility test results. The experimental field in Koliwad village is located between 150 21' N latitude and 750 24' E longitude and at an altitude of 629 m above mean sea level (MSL). Among the treatments, STCR dose of NPK, proved to be superior with respect to growth parameters i.e. plant height (84.5 and 95.4cm), number of branches (24.6 and 30.2) and dry matter accumulation (84.4 and 120.7g plant-1) at both 60 DAT and harvesting stage. It was followed by soil test based N and K ± 50 per cent and P + 25 per cent. Yield attributes i.e., number of fruits per plant (65), fruit length (13.8cm) and fruit yield (1257 kg ha-1) were the highest in STCR dose of NPK, which however, was on par with soil test based N and K ± 50 per cent and P + 25 per cent. Both these treatments were superior over rest of the treatments. The STCR dose of NPK followed by soil test based N and K ± 50 per cent and P + 25 per cent recorded higher uptake of nutrients as compared to other treatments. Soil available major nutrients were also influenced by soil test based fertilizer dose application. Higher availability of N, P2O5 and K2O were recorded in STCR dose of NPK as compared to rest of treatments. However, S, Zn, Fe, Mn and Cu availability were not influenced. The highest dehydrogenase and phosphatase activity was observed in the PSB treated plot. However, modified dose of fertilizers application did not influence the soil enzyme activity. The gross return, net return and B:C ratio were higher in STCR dose of NPK treatment followed by soil test based N and K ± 50 per cent and P + 25 per cent over rest of the treatments. The RDF and STL were significantly inferior to both in STCR dose of NPK and STL dose of NPK. | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/86269 | |
| dc.publisher | UAS, Dharwad | en_US |
| dc.research.problem | Soil Test Based Nutrient Dose Refinement in Chilli | en_US |
| dc.sub | Soil Science | en_US |
| dc.these.type | M.Sc | |
| dc.title | Soil Test Based Nutrient Dose Refinement in Chilli | en_US |
| dc.type | Thesis | en_US |