2024-03-28T22:27:21Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00010892
2023-01-04T01:26:59Z
1016:1018:1019:1067
緩効性窒素を含む高度複合肥料と単肥配合のナシに対する肥効の相違
Effects of Fertilizer Forms on Tree Growth, Yield and Fruit Quality of Nijisseiki Pears
熊代, 克己
建石, 繁明
A compound fertilizer of 20-12-21 grade containing controlled-release nitrogen and a bulk blending fertilizer of same grade used ammonium sulfate, urea, superphosphate and potassium chloride were applied to Nijisseiki pear trees growing in large pots with volcanic ash soil. The authors tried to examine some effects of these fertilizers on the growth, the yield, the fruit quality and the leaching losses of nutrients from the soil. The results obtained were summarized as follows: 1. In the trees applied the compound fertilizer, the tree growth, the yield and the fruit quality were superior to those applied the bulk blendings. 2. The nitrogen content of leaves in the trees applied the compound fertilizer was slightly higher than in the trees for bulk blendings. 3. The leaching loss of nitrogen, especially nitrate form, from the soil applied the bulk blendings was remarkable in comparison with that from the soil for the compound fertilizer.
Article
信州大学農学部紀要 4(2): 133-140(1967)
信州大学農学部
1967-09-30
jpn
departmental bulletin paper
VoR
http://hdl.handle.net/10091/2212
https://soar-ir.repo.nii.ac.jp/records/10892
0583-0621
AN00121352
信州大学農学部紀要
4
2
133
140
https://soar-ir.repo.nii.ac.jp/record/10892/files/Agriculture04-02-02.pdf
application/pdf
706.3 kB
2015-09-25