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The manganese content in some cultivated plants, grown in three soils limed or not limed, was investigated during 13 years of an lysimetric experiment. When the value of soil pH decreased, as a result of an acidification process, Mn content in plants increased, but much more in vegetative than in generative parts of them. No excessive Mn content in plants was observed even in the case of an acid sandy...
The effect of different rates and methods of fertilizer nitrogen application and potassium nutrition on the root nodule formation of faba bean plants var. Nadwiślański and on their nitrogenase activity was studied. It was found that fertilizer N depressed the nodule formation and nitrogenase activity, but inhibitory effect of N was smaller when it was supplied to the leaves instead to the soil. Plants...
The subject of the paper is a discussion of the effect of plant nitrogen nutrition (its deficiency and surplus) on processes affecting photosynthetic productivity and total biomass and agricultural (or economical) yield production. Among others, attention was paid to the effect of nitrogen nutrition on chlorophyll and protein synthesis, as weil as on the rate of photosynthesis, photorespiration and...
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