Effect of Nano Urea Scheduling on Productivity, Profitability and Residual Fertility of Multi Cut oat (Avena sativa L.)

Saklani, Sonal

doi:10.31080/asag.2022.07.1219

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…This lack of significance might be attributed to the lower concentration of nitrogen in nano urea, which did not effectively improve the yield attributes. Similar results have been reported by Rawate et al 38 and Saklani and Pal 39 . These results are in contradiction with Al-Juthery et al 40 , Mehta and Bharat 41 , Fakharzadeh et al 42 and Poudel et al 43 which might be due to different nature of nanofertilizers (NFs) used, varying concentrations of NFs, prevailing conditions, timing and method of application, etc.…”

Section: Discussionsupporting

confidence: 91%

Boosting wheat yield, profitability and NUE with prilled and nano urea in conservation tillage

Kumar,

Tripathi,

Yadav

et al. 2023

Sci Rep

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Rice–wheat production in the Indo-gangetic plains (IGPs) of India faces major concerns such as depleting resources, rice residue burning, excessive fertilizer use, and decreasing nitrogen use efficiency. These issues threaten sustainable crop production in the future. Therefore, a field study was conducted during the winter seasons of 2020–21 and 2021–22 to evaluate the effect of combined conventional and nano fertilizers on nitrogen application just before or after irrigation to improve wheat productivity, profitability and NUE under conservation tillage. The study evaluated eight treatment combinations of nitrogen application through conventionally applied urea (46% N) and foliar applied nano urea (4% N) under zero tillage with rice residue retention. Results revealed that growth, physiological indices, yield, and quality parameters were enhanced with the application of 150 kg N/ha in three equal splits as basal and just before 1st and 2nd irrigation alone (T2) or along with a spray of nano urea (T5) compared to other treatments. T5 recorded 7.2%, 8.5%, and 7.8% more plant dry matter, number of tillers, and grain yield, respectively, over the conventional practice of applying 150 kg N/ha in three equal splits as basal and 7–10 days after 1st and 2nd irrigation (T3, farmers practice). Although, T2 showed similar results to T5, T5 recorded significantly higher gross ($2542/ha) and net returns ($1279/ha) than the other treatments. However, the benefit–cost ratio of T2 and T5 was same (2.01). A significant and positive correlation coefficient between grain yield and physiological parameters such as CCI and NDVI confirmed that increasing the nitrogen dose enhanced the chlorophyll content, greenness, and plant vigor. Based on the results, it can be concluded that applying 150 kg N/ha in three equal splits as basal and just before 1st and 2nd irrigation under conservation agriculture, along with a single spray of nano urea (4% N) at 60–65 days after sowing, can improve growth, yield attributes, wheat yield, and NUE compared to farmers practice (T3) in India.

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