Influence of more important elements of the fertility chosen soil units on their productivity. Pt. 1. Determination of the soil fertility on the basis of yield of spring barley
1990
Drozd, J. | Wyskida, J. (Akademia Rolnicza, Wroclaw (Poland). Inst. Gleboznawstwa i Ochrony Srodowiska Rolniczego)
On the basis of the field experiments there were 7 soil profiles, different in texture, selected. They represented: black earth soils, lessive soils and brown ones, developed from light, medium and heavy loams, fragmentary ones which were underlaid with sands and another loams. According to the soil agricultural maps, they belonged to 2-4a of the value classes as well as to the 1st, 2nd and 4th complex of agricultural usefullness. Besides the mineral components content and chemical composition of spring barley grain serving as a test plant, the physical and chemical properties of these soils were estimated as they constitute the basic elements of fertility and productivity. The surveys let us state that the more compact soils and in excess moist soils created the conditions for the spring barley growth unfavourable. Cultivation of spring barley on such soils made the crops decrease and proved the reduction of the mineral elements and protein content in the grain of barley. The researches mentioned above point at the neccessity of the correction of the classification maps as well as the soil and agricultural ones and stresses the need of the further improvement investigation methods of the soil fertility
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