Vol. 12, Issue 6 (2023)

Author(s):
Guvvala Pavithra and Kathi Hema Sri

Abstract:
A field experiment entitled “Performance of transplanted Gobhi Sarson (Brassica napus var. napus) in relation to nitrogen levels and weed control treatments” was conducted at the experimental farm of School of Agriculture, Lovely Professional University, Phagwara. Experiment was laid out in Split Plot Design with four N levels (0, 75,100,125kg N/ha) in main plots and four weed control treatments i.e. plastic mulch, straw mulch, hand weeding, control in subplots. The crop gave significantly higher plant height (160.7 cm), plant dry matter (85.08 gm/plant), chlorophyll index (65.8), length of silique (5.67 cm), seed yield (18.81 q/ha), stover yield (9.75 q/ha) and oil yield (724.7 kg/ha) with the application of 125 kg N/ha as compared to other nitrogen levels. Application of 125 kg N/ha, 100 kg N/ha and 75 kg N/ha increased seed yield of Gobhi Sarson by 110.6,91.5 and 72.0% than in un weeded control respectively. In weed control treatments plastic-mulch proved significantly better for weed control, increased growth and yield attributes than straw mulch and one hand weeding treatments. Application of plastic mulch, paddy straw mulch and one hand weeding increased seed yield by 146.3,97.6,129.3 percent than the control respectively.