@article{oai:repository.naro.go.jp:00001506, author = {TAKISHITA, Fumitaka and 瀧下, 文孝 and 内田, 誠 and UCHIDA, Makoto and 草塲, 新之助 and KUSABA, Shinnosuke}, journal = {近畿中国四国農業研究センター研究報告, BULLETIN of THE NATIONAL AGRICULTURAL RESEARCH CENTER for WESTERN REGION}, month = {Mar}, note = {The influences of soil type and phosphate application on the growth of 'Flying Dragon' (Poncirus trifoliata Raffin var. monstrosa) trifoliate orange seedlings were investigated. Tree growth of 'Flying Dragon' sown in sandy soil, paddy soil and UC-soil (sandy soil + peatmoss + perlite) were better than that sown in akadamavolcanic soil. The concentration of PO^3-_4 in the water extract from sandy soil, UC-soil and paddy soil were 6.0, 14.2 and 4.7 mg・liter^-1, respectively. On the other hand, PO^3-_4 was not detected in the water extract from akadama soil. High concentration of NO^-_3 was measured in the water extract from akadama soil. There was positive correlation between the total DW, amount of fibrous root, T-R ratio and the concentration of PO^3-_4 in the water extract. Negative correlation was found between the tree growth and the concentration of NO^-_3 in the water extract. Tree growth, amount of fibrous root, and T-R ratio were increased by the application of super-phosphate to akadama-soil as basal fertilizer. In this experiment, it was demonstrated that initial growth of 'Flying Dragon' trifoliate orange seedlings be greatly attributed to PO^3-_4 and NO^-_3 extracted from the soil by water.}, pages = {13--25}, title = {ヒリュウ実生の生育に及ぼす育苗土の種類とリン酸施用の影響}, volume = {2}, year = {2003}, yomi = {タキシタ, フミタカ and ウチダ, マコト and クサバ, シンノスケ} }