نتایج جستجو برای: hardpan
تعداد نتایج: 53 فیلتر نتایج به سال:
In order to determine the reciprocal relationship between the important characteristics of soil and the growth of Haloxylon ammodendron (C.A. Mey) plant in segsi plain of Isfahan., ordination method was used. The study was performed through the stratified random sampling and the regions were separated according to the plant age and physical physiognomy, then 10 samples of Haloxylon ammodendron ...
In order to determine the reciprocal relationship between the important characteristics of soil and the growth of Haloxylon ammodendron (C.A. Mey) plant in segsi plain of Isfahan., ordination method was used. The study was performed through the stratified random sampling and the regions were separated according to the plant age and physical physiognomy, then 10 samples of Haloxylon ammodendron ...
*Correspondence: Ondra Sracek, Department of Geology, Faculty of Science, Palacký University in Olomouc, 17. Listopadu 1192/12, 771 46 Olomouc, Czech Republic e-mail: [email protected] Mine tailings in African countries Zambia and Namibia have been investigated with an objective to determine the role of secondary hematite in immobilization of contaminants. Two sites, Chambishi and Mindolo, are ...
Subsoiling has been acknowledged worldwide to break compacted hardpan, improve soil permeability and water storage capacity, promote topsoil deepening root growth. However, there exist certain factors which limit the wide in-field application of subsoiling machines. Of these factors, main two are poor quality high energy consumption, especially undesired tillage depth obtained in field with cov...
Hardpans (plough/hoe pans) are commonly believed to restrict plant root growth and crop yields under conventional small-scale agriculture in sub-Saharan Africa. This study questions the notion of widespread hardpans in Zambia and their remedy under conservation tillage. Soil penetration resistance was measured in 8x12 grids, covering 80 cm wide and 60 cm deep profiles in 32 soil pits. Large and...
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