Said,, H., Abbas, H., Abdel Aziz, S., Badr, M. (2002). EFFECT OF SOIL CONDITIONERS ON SANDY SOIL PROPERTIES GROWTH OF PLANTS AND NUTRIENTS UPTAKE. Journal of Soil Sciences and Agricultural Engineering, 27(4), 2689-2701. doi: 10.21608/jssae.2002.254157
Hoda M. Said,; H. H. Abbas; S. N. Abdel Aziz; M. A. M. Badr. "EFFECT OF SOIL CONDITIONERS ON SANDY SOIL PROPERTIES GROWTH OF PLANTS AND NUTRIENTS UPTAKE". Journal of Soil Sciences and Agricultural Engineering, 27, 4, 2002, 2689-2701. doi: 10.21608/jssae.2002.254157
Said,, H., Abbas, H., Abdel Aziz, S., Badr, M. (2002). 'EFFECT OF SOIL CONDITIONERS ON SANDY SOIL PROPERTIES GROWTH OF PLANTS AND NUTRIENTS UPTAKE', Journal of Soil Sciences and Agricultural Engineering, 27(4), pp. 2689-2701. doi: 10.21608/jssae.2002.254157
Said,, H., Abbas, H., Abdel Aziz, S., Badr, M. EFFECT OF SOIL CONDITIONERS ON SANDY SOIL PROPERTIES GROWTH OF PLANTS AND NUTRIENTS UPTAKE. Journal of Soil Sciences and Agricultural Engineering, 2002; 27(4): 2689-2701. doi: 10.21608/jssae.2002.254157
EFFECT OF SOIL CONDITIONERS ON SANDY SOIL PROPERTIES GROWTH OF PLANTS AND NUTRIENTS UPTAKE
2Faculty of Agric. Sci., Moshtcshor, Zagazig Univ.
3Soil Dept., Agric. Res. Center, Giza
Abstract
A greenhouse experiment was carried out to study synthetic conditioner (PAM) and a natural one shale (Tafla, an old clay deposit) on maize plant growth and nutrients uptake as a result of conditioning physical and chemical properties of the loamy sand soil, collected from Ismailia, North East of Cairo.
Four kg portions of surface soil (0-30 cm) were mixed thoroughly with either PAM at rates of 0,0.025,0.05 and 0.1% (w/w) or Tafla at rates of 0, 1,2and3% (w/w) then packed in plastic pots (25 cm and 20 cm depth). Each pot received nitrogen, phosphorus and potassium at the rate of 120 mg N , 13mgP and 40mg K per kg of soil in the forms of ammonium sulfate, calcium superphosphate and potassium sulfate, respectively. Maize was used as plant indicator and grown for 45 days.
Sulk density (SO was decreased due to the application of either PAM or Tafla. The lowest (SO) values was attained by 0.1 PAM and 3% Tafla treatments.
Hydraulic conductivity (Ks) was decreased with the application of soil conditioners. The largest decrease in (Ks) was associated with increasing the rate of soil conditioner.
Ca 'on exchange capacity (CEC) and electrical conductivity (EC) was increased d e to the application of PAM or Tafla. Treatments which received Tafla have higher EC values than those received PAM.
Dry weight of maize plants was increased due to the application of soil conditioners. The highest dry weight was obtained from PAM treatment.
The contents of maize plants from Nand K were favorably affected by using the applied conditioners. Their P contents were slightly increased especially at the
highest rates of application. .
Results indicated that N, P, K uptake by maize plants increased due to the application of soil conditioners. The increase was dependent on the rate of
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