The influence of soil oxygen availability on soybean yield and nutrient uptake part ii. the content and uptake of nitrogen phosphorus potassium calcium magnesium and sodium
Stepniewski, W.; Przywara, G.
Polish Journal of Soil Science 23(1): 11-16
The aim of the present paper was to establish the influence of the oxygen stresses lasting for 2 weeks, and applied during three different development stages of soybean (cv. Progres) on the contents and uptake to N, P, K, Ca, Mg and Na during the stage of full ripeness. A decrease of Mg content in the soybean vegetative parts at the ODR below 15 .mu.g m-2 s-1, a decrease of N, K, Ca, and Mg uptake at the ODR below 20 .mu.g m-2 s-1, as well as a decrease of the phosphorus uptake at the ODR below 35 .mu.g m-2 s-1 was found.