Assesment of mineral fertilization and composts amended with different activators on yield and nutrients uptake by wheat [electronic resource].

Includes references.

Field experiment was carried out on sandy soil in 2004 at Ismailia Agriculture Research Station to study the effect of compost and mineral fertilizers or yield and nutrients uptake (N, P, k, Fe, Mo, and Zn) by wheat plant The experiment included three main plots as type of rice straw and rnalze stalk with different activators, compost A (poultry manure activator), B (farmyard manure a,:tivator) and C (mineral activator). Five sub plots were fertilization lreatments (100% recommended NPK, 5 ton compost/fed +75% recommended NPK, 10 ton compost! fed +50 % recommended NPK, IS ton compost ifed +25 recommended NPK and 20 ton compost Ifed), A highly significant dfect of application rates for each compost on both grain and straw )field of wheat and weight of 1000 grains were obtained. The rate 10 ton compost! fed +50 % NPK showed the highest beneficial effect wherever, compost A surpassed the other composts Band C on the detrimental parameter. While the highest rate of composts (20ton Ifed) gave the lowest effect on plant growth and yield. The uptake of macro and microm:trients by wheat grain and straw were significantly affected either by the rates or the type of compost. The highest values ofN, P, K and Zn were recorded for compost A at the rate 10 ton compost/fed +50 % NPK. while the highest values of Fe and Mn were recorded for compost B at the same rate. Uptake ofN and P by grain surpassed that straw. The uptake cf K, Fe, Mn and Zn by straw excelled that of grain. The combination between organic and mineral fertilizers application efficiency considerably excelled that one of the individual application of both organic or mineral fertilizer. Likewise the activator added lo the composted material showed an effective roll in superiority of compost A on Band C.

Summary in Arabic.

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