تأثير بعض المواد العضوية في إتاحة الحديد في تربة مزرعة كلية الزراعة بأبي جرش

الملخص EN

A field experiment was carried out at the Facultly of Agriculture Farm (Calcic Loam) to investigate the effects of organic fertilizers (mushroom substrate residues, poultry manure and city compost and mineral fertilizer (NPK) on availability of iron, manganes, zinc and copper.

The results showed that the organic fertilizers and NPK fertilizer significantly affected availability of iron and other micronutrients (manganes, zinc and copper) in comparison to the control.

The treatment of compost gave the highest concentration of available iron in soil (11.52 ppm) compare to other treatments, and its contents of copper, manganes and zinc were 2.92, 12.9 and 3.61ppm respectively.

The treatment of compost significantly affected the to talir on in soil compared to the other treatments, and concentration of total iron was 3176 ppm.

The composttreatment significantly affectediron content in plant tissus compared to the other treatments andplant concentration iron was 480 ppm, and in the others treatments, 50% compost + 50%, mineral fertilizer, mushroom substrate, poultry manure, 50% mushroom substrate +50% mineral fertilizer, 50% poultry manure +50% mineral fertilizer, and mineral fertilizer were 374, 341, 332, 330, 320 and 317 ppm.

respectively.