2024-03-29T07:05:36Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00010924
2023-01-04T00:27:12Z
1016:1018:1019:1069
葉分析によるカラマツの栄養診断に関する研究
Studies on Nutritional Diagnosis by Leaf Analysis of Japanese Larch.
中村, 健
Using the Japanese larch, the relationship between nutrient elements of leaves and growth is observed for the purpose of appling a leafanalysis to nutritive diagnosis. The results are summarized as follows: (1) It is found in leafanalysis that growth depends on contents of some nutrient elements such as nitrogen, phosphorus, potassium and calcium. Thus the proper contents of these nutrient elements for rapid growth are obtained. (2) It is found that the seedlings and the adult trees have respectively different requirement of nutrient elements: the seedlings require phoshorus and calcium rather than nitrogen and potassium, while the adult trees require nitrogen and potassium rather than phosphorus and calcium. (3) The relationship between nutrient elements contents of leaves and growth of seedlings differs from that of adult trees: in seedlings phosphorus and calcium contents have close relation to growth, on the other hand in tnees nitrogen and potassium have close relation to growth. Thus in seedlings the ratio of N:P, K:P, and N:Ca has close relation to growth, while in trees the ratio of N:K plays an important role. (4) Since the nutrient element contents in leaves varied by tree ages, seasons, parts, site conditions and other factors, the application of leafanalysis to nutritive diagnosis should not be carried out without taking account of the case.
Article
信州大学農学部紀要 2(4): 378-419(1961)
信州大学農学部
1961-12-30
jpn
departmental bulletin paper
VoR
http://hdl.handle.net/10091/2201
https://soar-ir.repo.nii.ac.jp/records/10924
0583-0621
AN00121352
信州大学農学部紀要
2
4
378
419
https://soar-ir.repo.nii.ac.jp/record/10924/files/Agriculture02-04-02.pdf
application/pdf
2.7 MB
2015-09-25