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Effect of summer legumes incorporated as green manures, sunn hemp (cv. Kobutoriso) and peanut (cv. Chiba-handachi), was examined for nitrogen contribution to the succeeding wheat (cv. Norin 61). The d...
To estimate the site-specific optimal amount of nitrogen (N) to be applied as top-dressing (N top-dressing) at panicle initiation, we examined the effects of the amount of N accumulated in the abovegr...
The supernodulating soybean genotype Sakukei 4 is potentially high-yielding. We characterized its leaf nitrogen (N) content, photosynthesis and growth at different developmental stages and under diffe...
Nitrogen and phosphorus removal from wastewater by a ditch planted with several plants, including terrestrial species, was studied. The effects on the removal rate by shading were also examined. Papy...
The effects of nitrogen dressing at different growing stages on baking quality were investigated by using the winter wheat breeding line Tohoku205. The relation between flour protein content and ratio...
Effects of Nitrogen Fertilizer Application and Solar radiation on the Growth Response of Sorghum Seedlings to Soil Moisture.
This experiment was carried out in order to clarify the amount of decreased nitrogen flowing from bedding plant soil to which zeolite or crushed charcoal had been added. Nitric acid leaching was obser...
We attempted to increase the kernel weight of Hokkaido-bred wheat cultivar “Haruyutaka” by increasing the net assimilation rate (NAR) without inducing an over-luxuriant canopy during the ripening per...
To increase the protein content of wheat grain, we applied fertilizer 10 days after heading and examined its effect on agronomic character and flour quality. This top dressing did not affect the agro...
Nitrogen fixation by soybeans is reduced by high soil nitrate levels. This reduced nitrogen fixation capacity increases the dependence on soil nitrogen, which may result in depletion of soil nitrogen...
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 ...
To examine the effect of the method of nitrogen fertilizer application (incorporation into plow layer, surface layer application and side dressing) on the recovery rate of applied nitrogen and its di...
In order to understand the effect of the time of nitrogen topdressing (panicle formation stage — 40 days after heading time) on the recovery rate of applied nitrogen and its distribution in rice plant...
Effects of the amount of fertilizer [N, P2O5 and K2O at 0 (Non-F), 6 (L), 12 (M) and 18 g (H) m-2, respectively], and the kind of fertilizer [conventional fertilizer (CF) and the compound fertilizer ...
Total nitrogen and total carbon contents of the soil and the leaf yield in a long-term unfertilized mulberry field (NF) were compared with those in a chemically fertilized field (F) for 19 years from ...

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