نتایج جستجو برای: chernozems
تعداد نتایج: 184 فیلتر نتایج به سال:
Fertilization restructures nematode assemblages by modifying soil pH in croplands of Northeast China
Fertilization is an effective measure to ensure crop yield and food security in modern intensive agriculture. However, the long-term application of mineral fertilizers may lead soil acidification, consequently affecting organisms. Few studies have focused on effects fertilizer nematode assemblages various types. Soil chemical properties were investigated seven fields at China Cultivated Land Qu...
The present study was performed for the ecotoxicity assessment of bismuth (Bi) effect on biological indicators soil condition: total number bacteria, catalase activity, dehydrogenases activity and germination Radish seeds length roots. Three types with significantly different resistance ability to heavy metal pollution were studied: Haplic Chernozems Calcic, Arenosols Eutric Cambisols Eutric.So...
Goal. To assess the direction of nature changes in productivity 5-field crop rotations and to determine their energy efficiency on podzolized chornozem Right-Bank Forest Steppe under influence rotation factor fertilizer systems. Methods. Field, laboratory, quantitative, comparative calculation, mathematical statistical. Results. It was established that total depended share grain, technical fodd...
On sites with weakly leached chernozems located in the agro-ecological conditions of municipality Kaynardzha, Silistra region, soil fertility and productivity agricultural lands were assessed two ways: 1. Through routinely used Bulgaria “Methodology for work on cadaster NRB” (Petrov et al., 1988.) 2. a newly developed methodology “Modern approaches potential assessment (Land evaluation categori...
Abstract Background Leaching from agricultural land is one of the major pathways phosphorus (P) loss soils to waterbody and may induce adverse effect on territorial environment. Past studies usually focused inorganic P (P I ) while ignored role organic O in leaching process. A total 63 soil samples were collected across China with various types including 21 paddy soils, 13 chernozems, 11 red ot...
The cultivation of red clover for fodder purposes on typical low-humus chernozems the northern part Right-Bank Forest-Steppe Ukraine is profitable. Regardless technology components, it provides a net profit UAH 14,962-23,743 per hectare with profitability 88-259% and cost 1 ton feed units 1,415-2,662 raw protein 5,363-10,265, payback energy costs in terms gross (EER) yield 6.2-9.0 metabolisable...
The objectives of this study were to characterize, classify and evaluate the potential constraints of soils Sakure Nginda Payams in Nzara Yambio counties Greenbelt zone Western Equatoria State, South Sudan. Ten soil pits dug, described sampled based on FAO profile description guideline samples analysed using standard routine lab analyses for physical chemical properties. Data genera...
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