University of Khartoum

Implantation Inter-seeding. L Soil Moisture and Seedling Emergence*

Implantation Inter-seeding. L Soil Moisture and Seedling Emergence*

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Title: Implantation Inter-seeding. L Soil Moisture and Seedling Emergence*
Author: Abusuwar, Awad
Abstract: The effectiveness of land imprintation in interseeding arid land ecosystem with perennial grasses and legumes was studied at two different elevations (Oracle at 1125 m and Tucson at 710 m) in southern Arizona. Three plant cover treatments, including grasses only, legumes only and a grass-legume mix, combined with four surface treatments (imprinted, mulched, imprinted-mulched, and an untreated surface), were imposed at both sandy-loam sites. The Oracle site received natural rainfall only, whereas the dry Tucson site received supplemental irrigation in addition to rainfall in amounts equal to the rainfall differences. Imprintation increased soil moisture over the untreated surface by 33% at Oracle and by 54% at Tucson. At Oracle, grass seedling emergence was increased by 126% over the untreated surface and by 87% over the mulch treatment; while legume emergence was increased by 800% and 367%. Imprinting increased grass emergence of the grass-legume mix by 295% over the untreated surface, and by 190% over the mulch treatment, while legume emergence was increased 123% over the untreated surface and 109% over the mulch treatment. Imprinting produced similar increases in grass and legume emergence at the lower elevation. Interseeding of grass and legume species was greatly enhanced by the imprintation technique in the arid region of south western United States.
Description: This paper had been presented for promotion at the university of Khartoum. To get the full text please contact the other at Abusuwar @ yahoo.com
URI: http://hdl.handle.net/123456789/7184
Date: 2011


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