EFFECT OF SOME SOIL AMENDMENTS ON THE • CHEMICAL CONSTITUENTS OF SOYBEAN PLANT GROWN IN SOME .. EGYPTIAN SOILS
Mona Hefni Mohamed;
Abstract
Two pot experiments have been performed to study the effect of some soil amendments on biochemical constituents of soybean plant grown in two kinds of soil (sandy and clay) through the benifical effect of soil amendments on physical and chemical properties and the nutrient availability.
The experiments carried out in green house at SWERI, ARC in complete randomized design. The sandy soil was taken from lsmailia experimental research station while the clay soil was from Kafr EL-Sheikh experimental station. The two soils under investigation treated with soil amendments
{polyacrylamide (PA) or sewage sludge (SS) or poultry manure (PM)} and the rates of amendments application were 0.1, 0.25 and 0.50% for PA and were 1.0, 2.0 and 3.0% for SS and PM.
The results were summarized as follow:
1- Soil physical properties :
PA, SS and PM treatments improved the soil moisture retention in sandy and clay soils as the following order PA > PM > SS, but this effect was obvious in sandy soil than in clay soil. Also the results revealed that PM reduced the quickly drainable pores and increased the water holding pores and capillary pores and the available water capacity than PA and SS treatments
2- Soil chemical properties and nutrient availability:
The results revealed that, PA treatments had no effect on soil pH values, however PM and SS led to decrease pH values in sandy and clay soil but the effect of PM was more than SS treatments.
The results revealed that, PA treatments had no effect on EC values while SS and PM treatments led to increase EC value with the increasing in SS and PM rates.
The experiments carried out in green house at SWERI, ARC in complete randomized design. The sandy soil was taken from lsmailia experimental research station while the clay soil was from Kafr EL-Sheikh experimental station. The two soils under investigation treated with soil amendments
{polyacrylamide (PA) or sewage sludge (SS) or poultry manure (PM)} and the rates of amendments application were 0.1, 0.25 and 0.50% for PA and were 1.0, 2.0 and 3.0% for SS and PM.
The results were summarized as follow:
1- Soil physical properties :
PA, SS and PM treatments improved the soil moisture retention in sandy and clay soils as the following order PA > PM > SS, but this effect was obvious in sandy soil than in clay soil. Also the results revealed that PM reduced the quickly drainable pores and increased the water holding pores and capillary pores and the available water capacity than PA and SS treatments
2- Soil chemical properties and nutrient availability:
The results revealed that, PA treatments had no effect on soil pH values, however PM and SS led to decrease pH values in sandy and clay soil but the effect of PM was more than SS treatments.
The results revealed that, PA treatments had no effect on EC values while SS and PM treatments led to increase EC value with the increasing in SS and PM rates.
Other data
| Title | EFFECT OF SOME SOIL AMENDMENTS ON THE • CHEMICAL CONSTITUENTS OF SOYBEAN PLANT GROWN IN SOME .. EGYPTIAN SOILS | Other Titles | تأثير بعض محسنات التربة على المكونات الكيميائية لنبات فول الصويا النامى فى بعض الاراضى المصرية | Authors | Mona Hefni Mohamed | Issue Date | 1997 |
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