CHANGES OF SOIL PHYSICAL PROPERTIES AND MACRO NUTRIENT UPTAKE BY WHEAT IN DIFFERENT SOILS 'AS AFFECTED BY POLYMERS | ||||
| Journal of Soil Sciences and Agricultural Engineering | ||||
| Article 4, Volume 27, Issue 7, July 2002, Page 5049-5058 PDF (1.39 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jssae.2002.255194 | ||||
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| Authors | ||||
| A. M. EI-Ghamry1; E. M. EI·Naggar2; S. A. Abd EI.Wahab3 | ||||
| 1Mansoura University, Faculty of Agriculture, Soil Science Department, EI·Mansoura Egypt | ||||
| 2Egyptlan fertilizer development center, EI·Mansour, Egypt | ||||
| 3Soll, Water, and Environment Inst Res. Agrlc. RH. Center, Egypt | ||||
| Abstract | ||||
| A pot experiment was carried out to study the effect of three kinds of soil conditioners on the changes of soil physical properties and N, p, and K uptake by wheat In different solis. The tested polymers were: Aequa Kept "P1", Super-Hydro "P2", and Polyvinyllalkohol "P3" these were tested at three levels of 0.05 "L 1-, 0.10 "L2", and 0.15% "L3" under three types of soils used (sandy, calcareous and alluvial soils), Results obtained Indicated that: The application of synthetic soil conditione,.. signillcantly decreased the bulk density after cultivation and increased the porosity, saturation percentage and organic matter content of the studied soils, The dry weights .of wheat plants Significantly Increased with increasing the levels of polymers application. The highest dry weights are recorded In differeflt types of treated soils with the P2l3 treatment. N, P and K uptake significantly Increased with soil conditioners and their appUcation rates. Results obtained indicated that both wheat dry weight and N,P ,K uptake by wheat plants increased due to application of soil conditioners especially with"P2- at L3, following the order: Super-Hydro "P2" > Aequa Kept "Pi" > PoIyvinyllalkohol"P3" | ||||
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