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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...
Field experiments were conducted in 2006 to investigate the impacts of modified rice cultivation systems on: grain yield, N uptake, ammonia volatilization from rice soil and N use efficiency (ANUE, ag...
It was investigated whether the amount of ammonification could be used as an index of soil analysis for fertilizer application, which was related with the amount of soil nitrogen supplied from paddy f...
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 ...
From 1991 to 1994, a rice cultivar, Koshihikari, was cultured under dense (25 hills/m2) and sparse (17 hills/m2) planting with a low supply of agricultural chemicals and with continuos application of ...
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...
In the Nile Delta in 1980's, half of the farmers cultivated rice (Oryza sativa) by the basal application of nitrogen at 10 g m-2 and the remaining half by split application, half at transplanting and ...
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...
The effect of eight varieties of grain and forage type whole crop rice (Oryza sativa L Japonica) each harvested at four stages of maturity were investigated for morphology and yield, proportion of bot...

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