Loading...
Thesis
Browse
1 results
Search Results
ThesisItem Restricted Appraisal of planting dates and the time of nitrogen application for higher productivity in Bt cotton(Punjab Agricultural University, Ludhiana, 2022) Ajay Kumar; Brar, Sukhdeep KaurThe investigation entitled “Appraisal of planting dates and the time of nitrogen application for higher productivity in Bt cotton” was conducted at PAU, Regional Research Station, Faridkot and PAU, Regional Research Station, Bathinda, during kharif season of 2020. The soil of experimental field at both test locations was sandy loam with slightly alkaline pH. The experiment was carried out in split plot design with three replications comprising of three planting dates (D1: May 5, D2: May 20 and D3: June 5) in main plots and four time of N treatments (F1: ½ at planting + ½ at flowering, F2: ⅓ at planting + ⅓ at thinning + ⅓ at flowering, F3: ¼ at planting + ¼ at thinning + ¼ at flowering initiation + ¼ at peak flowering and F4: ½ at thinning + ½ at flowering (Recommended dose as Check) in sub plots. The result of the experiment indicated that planting date D1 (May 5) recorded higher values for all growth and yield attributes characteristics. Significantly higher seed cotton yield, lint yield and biomass were recorded under D1 as compared to the D2 and D3. Quality parameters viz., upper half mean length (mm), uniformity index and bundle strength (g/tex) were non-significant among the all planting dates. Among the time of N application, F3 recorded maximum growth and yield attributes, which was statistically at par with F2 and F4. Crop with four splits application of N recorded maximum seed cotton yield, which was at par with application of N in two and three splits but was significantly better than two splits application of N. Fiber quality parameters like upper half mean length (mm), uniformity index and bundle strength (g/tex) were non-significant under varying the time of N application.
