PROBLEM 1:
A Research Assistant conducted a study on the effect of N fertilizer rates on the growth and yield of PSB Rc10 grown in clay loam soil. The following data were obtained: N rates (kg/ha) : 0,20,40,60,80,100 Biomass (t/ha): 1.5,3.7,6.4, 9.9, 13.8, 17.7 Grain Yield (t/ha): 0.3, 1.2...