The influence of 10 days' flooding in seven development stages of spring barley on its growth yield and nitrogen phosphorus potassium content and uptake part ii. content and uptake of nitrogen phosphorus and potassium Stepniewski, W.; Labuda, S. Polish Journal of Soil Science 22(1): 101-109 1989 https://eurekamag.com/research/007/908/007908174.php