Possibility of using some agricultural residuas in tomato nersury production [electronic resource].

Includes references.

The main objective of this study is possibility of using some agricultural residuas as plant media to tomato nursery. These residues as ground cotton stalks, groundrice straw and ground corn stalks. Each residuascontains different ratio of sand. 1/lso, one sample was 75% peat moss plus 2 5% velrmiculite as a control. Laboratory experiments were conducted to quantifY real density (g/cm3), bulk density (g/cm3), hydraulic conductivity (em/min), total porosity (%), and available water (gig) as affected by different mixtures experimental. The tomato nursery was planted into trays in greenhouse to study some growth parameters as germination ratio, nursery high, plant weight, and leaves number as affected by different mixtures. The results show that in the media of (sand +ground cotton stalks), (sand+ ground rice straw), and (sand+ ground corn stalks) decreased sand ratio gave an increased in both total porosity and available water, the highest value of total porosity Md available water were at mixture of (20% sand + 80%residuas). Also, the highest growth parameter of nursery as nursery weight and nursery high was obtained with the same mixture.

Summary in Arabic.

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