Need based nitrogen management of maize (Zea mays L.) grown in the dry zone of Sri Lanka using a six panel leaf colour chart

Renuka, K.A.Senavirathna, W.M.I.2020-08-182020-08-182017Tropical Agriculturist, 165:p.1-13https://dl-doa.nsf.gov.lk/handle/1/2518Need based N managementLeaf color chartMaizeNeed based nitrogen management of maize (Zea mays L.) grown in the dry zone of Sri Lanka using a six panel leaf colour chartArticle