Canola Yield Response to Levels and Application Methods of Nitrogen

Abstract

Use of imbalance fertilizers and its application methods may cause reducing crops productivity. Therefore the proper level of fertilizers and appropriate methods is required to sustain the productivity of crops and soil fertility. Different levels of Nitrogen and its application methods were used to improve the canola productivity. A field experiment was conducted at University of Agriculture, Peshawar research farm in 2015-16. Randomized complete block design in split plot arrangement was applied with four replicates. Application methods (Broadcast method, rows one side placement, rows both side placement and rows between) were allotted to main plots and N levels (40, 70 and 90 kg ha-1) were allotted to subplots. Experimental results exhibit that all the parameter were significantly (p ≤ 0.05) different; maximum days to emergence (9), maximum number of plant m-2 (32), maximum days to first flowering (97), maximum grain pod-1 (28), maximum 1000 grain weight (3.2 g), maximum grain yield (985 kg ha-1) were noted at plot that fertilized with 70 kg ha-1 N along with both side placement of rows. It can be concluded that N at 70 kg ha-1 and both side placement of rows produce a higher yield and yield attributes of canola.

Effect of Tillage and Nitrogen Levels on Yield and Water Productivity of Brassica napus in North West India

“…Deep ploughing significantly increased seed yield of mustard over conventional tillage [40]. Our results corroborate with the findings of Ali et al [41] in canola. This increase is attributed to enhanced availability of moisture which led to a better nutritional environment at the critical crop growth stages, which in turn resulted in better vegetative growth.…”

Impact of Tillage, Irrigation Regimes and Nitrogen Levels on Soil Moisture Dynamics, Growth and Productivity of Canola (Brassica napus)

“…N 100 recorded a significantly higher grain yield of 1.97 t ha -1 than N 75 (1.74 ). Increasing N rates improved grain yield as reported by Ali et al [57] in canola.…”