Advice on fertilizer policy. some complicating factors in the interpretation of graphs of the yield/nitrogen relationship plotted from estate data

Barham, C.B.F.2015-06-192015-06-191962Tea Quarterly33(3)pp.132-133https://dl-tri.nsf.gov.lk/handle/1/260AgricultureTeaFertilizer applicationNitrogenYield increaseAgricultural extensionPlant nutrientsAdvice on fertilizer policy. some complicating factors in the interpretation of graphs of the yield/nitrogen relationship plotted from estate dataArticle