Effects of Spinach Cultivars and Cultivation Conditions on Leaf Yield and Appearance Quality in Ratoon Cropping for Processing Use
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- Suzuki Takayuki
- Kyushu Okinawa Agricultural Research Center, NARO
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- Kamada Erika
- Kyushu Okinawa Agricultural Research Center, NARO
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- Ishii Takanori
- Kyushu Okinawa Agricultural Research Center, NARO
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- Adachi Katsuki
- Kyushu Okinawa Agricultural Research Center, NARO
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- Niimi Hiroshi
- Kyushu Okinawa Agricultural Research Center, NARO
Bibliographic Information
- Other Title
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- 加工用ホウレンソウの刈取再生栽培法における品種と栽培条件が収量および外観品質に及ぼす影響
- カコウヨウ ホウレンソウ ノ カリトリ サイセイ サイバイホウ ニ オケル ヒンシュ ト サイバイ ジョウケン ガ シュウリョウ オヨビ ガイカン ヒンシツ ニ オヨボス エイキョウ
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Abstract
The mechanical har vesting of spinach for processing use is becoming common in Japan. We investigated the effects of cultivars and cultivation conditions, including the supplemental application of fertilizer after first harvesting and the time of first harvesting, on leaf yield and appearance quality in ratoon cropping, which utilizes regrowth of spinach foliage, in Miyazaki Prefecture, which is the largest spinach producing center in Japan. Regarding whole plant weight at harvest, there was no significant difference between cultivars, but the ratio of foliage weight cut at harvest to whole plant weight was consistently higher in the upright cultivar‘ Kuronosu’ than in‘ Sapuraizu7’ in both the first and second cropping (ratoon cropping) with supplemental fertilizer application. In‘ Kuronosu’ cropping, the supplemental fertilizer application after first harvesting increased the foliage weight at the second harvest and percentage of good leaves for products. In addition, the longer growing period increased the foliage weight at the second harvest. Therefore, in a mechanical harvesting system with ratoon cropping, the following measures are recommended: upright cultivars should be grown; when the plant length reaches approximately 40 cm, spinach should be initially harvested to ensure adequate growth period for the second harvesting; and supplemental fertilizer should be applied after first harvesting.
Journal
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- Japanese Journal of Farm Work Research
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Japanese Journal of Farm Work Research 53 (1), 33-41, 2018
Japanese Society of Farm Work Research
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Details 詳細情報について
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- CRID
- 1390564238025701760
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- NII Article ID
- 130007485394
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- NII Book ID
- AN00386823
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- ISSN
- 18832261
- 03891763
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- NDL BIB ID
- 028904716
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed