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A study was conducted in 2005 and 2006 to evaluate the effect of different types of crop residue mulch on soil physical properties and rice yield. The crop residue treatments were dry rice straw, bur...
From 1991 to 2000, a rice cultivar, Koshihikari, was grown in the field, where either farmyard manure or chemical fertilizer was continuously applied. A minimal amount of herbicide and pesticide were ...
In the Nile Delta, rice (Oryza sativa) used to be cultivated with comparatively low planting density (15 hill m-2), large hill (19 to 23 plant per hill) and small nitrogen (10 g m-2) in the 1980’s. E...
Yielding ability of multiline composed of the blast resistant isogenic lines (Pia, Pii, Pita-2 and Piz) and original line (+) was evaluated in a paddy field with severe blast epidemic (a pathogenic ra...
The source of the variation of yield and yield components of paddy rice was analyzed in the paddy-upland rotational fields (rice-wheat-soybean) and in the single-cropped paddy fields from 1998 to 20...

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