| Titles |
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English :
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The biopolymer, Agar Agar, as a soil conditioner
Part II: Field trials
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Arabic :
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استخدام البوليمر الحيوي ، آجار أجار كمحسن للتربة
الجزء الثاني: التجارب الحقلية
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| Abstract |
Four field trials were conducted through the period from 1997 to 2000, to evaluate the beneficial effect of using Agar Agar (Agar) as new soil conditioner under field conditions. Two wheat field trials were conducted at two sites, Sakha experimental Station in clayey soil in 1997/1998 and Ismaielia Experimental Satiation in sandy soil in 1998/1999, and cultivated with the two commercial varieties Sakha 61 and Sakha 69 respectively. Another two peanut (cv. Giza 5) field trials were conducted in 1997 and 2000 in sandy soil at Ismaielia Experimental Station. Agar solutions at very low rates, alone or in combination with a balanced compound fertilizer were applied by using two easy techniques, being soaking seeds pre sowing or spraying soil under the growing plants.
The obtained results emphasized that:
1- Applying Agar by soaking wheat seeds in Agar solution of 0.1% for four hours pre planting had an adverse effect on grain and straw yield in clayey soil at Sakha. Conversely, spraying the sandy soil (after one month from planting) at Ismaielia under the growing plants of wheat with Agar solution of 0.1% containing the compound fertilizer named Foliar-X at the rate of 0.25% significantly increased the grain, and straw over that of control treatment by 37.0% and 58.9%respectively.
2- Soaking peanut seeds in Agar solution for one hour pre planting significantly increased the yield. The lowest concentration of 0.01% was the most effective one wherein the seed yield increased by 101.5% then declined to 69.3% with 0.2%; while increasing such concentration to 0.4% in the second season increased it by only 40.4% over seed yield of control treatment.
Also, spraying sandy soil with Agar solution of 0.1% under growing peanut plants significantly increased the pod and seed yields over those sprayed with water in the second season. However the best seed yield was obtained when Agar solution, used for soaking seeds or spraying soil under plants after one month from planting, was combined with the balanced fertilizer Novatrin, wherein an increase of 49.7% and 48.2% over those treated with water was achieved respectively. The N, P and K content as Kg/feddan in seeds exhibited the same patter existed with the seed yield.
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| Publication year |
2002
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| Availability location |
Egyptian Journal of Agricultre Researchs (معهد بحوث الاراضى والمياه والبيئة)
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| Availability number |
80
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| Organization Name |
Soil, Water and Environment Research Institute (SWERI)
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| City |
Giza
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| serial title |
Egypt. J. Agric. Res.,
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| Department |
Sandy and Calcareous Soils Research
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| Author(s) from ARC |
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| Agris Categories |
Soil erosion, conservation and reclamation
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AGROVOC
TERMS |
Agar.
Groundnuts.
Soil conditioners.
Wheats.
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| Publication Type |
Journal
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