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Effect of Crop Residue on Soil Physical Properties and Rice Yield on an Acid Ultisol at Abakaliki, Southeastern Nigeria
Crop Residue Acid Soil Physical Properties Rice Cultivars Rice Growth Rice Yield
2010/11/16
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...
Rice Yield by the Culture with Minimal Agricultural Chemicals in the Field with Continuous Application of Farmyard Manure or Chemical Fertilizer(Agronomy)
Continuous application of farmyard manure Culture with minimal agricultural chemicals Fluctuation of yield Koshihikari Panicle blast
2009/7/15
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 ...
Optimum Planting Density and Nitrogen Application Rate for Maximizing Rice Yield in the Nile Delta
Planting density Paddy yield Yield components Rice Nitrogen rate Nile Delta Leaf area index
2009/7/9
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...
Effect of Mixing Ratio of Blast-Resistant Isogenic Lines on Rice Yield of the Multiline
Blast resistance Isogenic line Mixing ratio
2009/7/8
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...
Analysis of the Variations of Rice Yield in Paddy-Upland Rotational Fields
Paddy rice Paddy-upland rotation Single crop Soil nitrogen mineralization Yield components
2009/7/7
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...