Optical-Sensor-Based Nitrogen Management in Oat for Yield Enhancement

The deficiency of nitrogen (N) in soil restricts agricultural productivity and its overdosage pollutes the atmosphere. Nitrogen is a vital component protein, chlorophyll various physiological processes. When it applied at recommended dose, may be lost through fixation, leaching, volatilization denitrification, etc. Therefore, there dire need to harmonize supply according crop requirements. Under this situation, precision management one best options. GreenSeekerTM an integrated optical sensor with variable application rate mapping system that measures crops’ To ascertain abovementioned facts, research study was conducted National Agriculture Research Center, Islamabad, Pakistan, examine response fodder oat (N0 = control, N1 80 kg ha−1 basal N2 40 + split doses, N3 one-time N4 20 two-time GreenSeekerTM) seed (S1 80, S2 100, S3 120 S4 140 ha−1). Data were recorded on agronomic aspects economic analysis performed for GreenSeekerTM-based N against conventional dose application. Mean values showed greater number tillers plant−1 (6), fresh weight (16572 kg) photosynthetic (11.64 mmol m−2 s−1) noted treatment (20 GreenSeekerTM). Greater plant height (70.8 cm) leaf area (64.14 cm2) (40 doses) as compared control. effects forecasted NDVI. results suggested (18 ha−1) managed by GreenSeeker PARC Oat cultivar produced maximum NDVI value (0.68) booting stage among all treatments. correlation tillering stages green yield positive (R2 0.80). can good depictive early later growth under agro-climatic conditions Pakistan. Based results, apply initial along obtaining more oat. In Crux, N1, total achieve estimated net profitability USD 582.13. With N4, 58 used 836.16; therefore, found environmentally safe (80