@article{oai:repository.naro.go.jp:00001700,
 author = {中野, 明正 and NAKANO, Akimasa and 上原, 洋一 and UEHARA, Yoichi},
 journal = {野菜茶業研究所研究報告, Bulletin of the National Institute of Vegetable and Tea Science},
 month = {Mar},
 note = {The nitrogen concentration of compost decreased mainly within 90 days after composting, after that the concentration remained at the same level for 360 days after composting. Tomato production at the early stage would correlate closely with easily extractable nitrogen in the compost, such as ammonium nitrogen with only a maure application. However on the inorganic content of the fruits, only that of the plot without fertilizer application showed any remarkable difference among the treatments, and the fruits from the plot with 360 days compost showed significantly higher phosphate, potassium and magnesium than that of the chemical fertilizer treatment. There was no difference on the citric acid concentration of fruits, although the ascorbic acid concentration showed a tendency to increase in compost application. While the δ^15N values of the compost increased to + 17.2‰ after 30 days composting, beyond that time it did not show any remarkable change. Nitrogen isotope discrimination by ammonium volatilization and denitrification within 30 days after composting mainly determined the convergence of the δ^15N values of compost even at longer composting periods.},
 pages = {157--163},
 title = {腐熟度の異なる堆肥が低段トマト果実の品質と δ^15N値に与える影響},
 volume = {8},
 year = {2009},
 yomi = {ナカノ, アキマサ and ウエハラ, ヨウイチ}
}