CHANGES OF SOIL PHYSICAL PROPERTIES AND MACRO NUTRIENT UPTAKE BY WHEAT IN DIFFERENT SOILS 'AS AFFECTED BY POLYMERS

EI-Ghamry, A. M.; EI·Naggar, E. M.; Abd EI.Wahab, S. A.

doi:10.21608/jssae.2002.255194

CHANGES OF SOIL PHYSICAL PROPERTIES AND MACRO NUTRIENT UPTAKE BY WHEAT IN DIFFERENT SOILS 'AS AFFECTED BY POLYMERS

Document Type : Original Article

Authors

¹ Mansoura University, Faculty of Agriculture, Soil Science Department, EI·Mansoura Egypt

² Egyptlan fertilizer development center, EI·Mansour, Egypt

³ Soll, Water, and Environment Inst Res. Agrlc. RH. Center, Egypt

10.21608/jssae.2002.255194

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"