Evaluation of nano-urea foliar application on productivity and profitability of linseed (Linum usitatissimum)
DOI:
https://doi.org/10.59797/ija.v70.i4.5668Keywords:
Foliar application, Nano-urea, Soil application, Yield attributes LinseedAbstract
A field experiment was conducted during rabi season of 2021–22 and 2022–23 to study the effect of nitrogen levels and nano-urea on growth, yield attributes, yield and economics of linseed. The experiment was laid out in split plot design with main plot treatments consisting of soil application of 100%, 75%, 50% and 25% of recom mended nitrogen levels applied in 2 splits 50% as basal application and 50% as top dressing and subplot treat ments consisting of foliar application of different doses of nitrogenous fertilizers as, one water spray, one spray of nano-urea @ 3 ml/litre at flower initiation stage, 2 sprays of nano-urea @ 3 ml/litre at flower initiation and capsule development stage, one spray of 2% urea at flower initiation stage and 2 sprays of 2% urea at flower initiation and capsule development stage. The soil application of 100% recommended level of nitrogen was found to record sig nificantly highest linseed growth and yield attributes, seed yield, stover yield, gross return, net return and benefit: cost ratio which was statistically similar to 75% recommended level of nitrogen but showed its significant superior ity over rest of the treatments. Similarly, foliar application of two sprays of nano-urea @ 3 ml/litre at flower initiation and capsule development stage led to significant enhancement in primary and secondary branches/plant, cap sules/plant, seeds/capsule, test weight, seed yield, stover yield, gross return, net return and B:C ratio as compared to other foliar nitrogen management practices except foliar application of one spray of nano-urea @ 3 ml/litre at flower initiation stage.
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