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- Hidehiro INAGAKI
- Shizuoka university
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- Kana HASEGAWA
- Shizuoka university
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- Sakiko KUBOTA
- Shizuoka university
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- Koji NISHIKAWA
- Shizuoka university
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- Kazuko NARUSE
- Shizuoka university
Bibliographic Information
- Other Title
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- イタドリ（<i>Fallopia japonica</i>）の表層施用がナス栽培に及ぼす影響
- イタドリ(Fallopia japonica)の表層施用がナス栽培に及ぼす影響
- イタドリ(Fallopia japonica)ノ ヒョウソウシヨウ ガ ナス サイバイ ニ オヨボス エイキョウ
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Description
<p>Poaceae plants, such as silver grass or reed, are commonly used in weed mulch farming. In the Nishi-Awa area of Japan, which was designated as Globally Important Agricultural Heritage Systems (GIAHS) in 2018, farmers have traditionally been using silver grass for mulch farming. However, Japanese knotweed (Fallopia japonica) has been used solely for traditional eggplant cultivation. It is unclear why the farmers use Japanese knotweed for eggplant cultivation only. Therefore, we investigated the effects of Japanese knotweed mulching on eggplant cultivation to identify its effects on yield and eggplant quality.</p><p>Field experiments were conducted in 2016 and 2017 in the field center of Shizuoka University, Japan. The cultivar ‘Senryo nigou’ was used for every test. Egg plants were cultivated in plastic pots (diameter 30cm). We compared the Japanese knotweed mulching, silver grass mulching and no grass mulching farming (control). We investigated the transition of soil moisture, soil temperature, and plant height, date of flowering and fruiting, plant weight, yield (number, size weight of fruits), and quality of fruits (hardness, sugar content, anthocyanin content) of eggplants.</p><p>When there is little irrigation, soil moisture content was higher with Japanese knotweed mulching than with silver grass mulching and the control. Both Japanese knotweed and silver grass had good effect on reducing the temperature difference between days and nights. Neither Japanese knotweed nor silver grass had any effect on plant growth and yield of eggplant compared with the control. Compared with mulching with silver grass and the control, mulching with Japanese knotweed had a good effect on the quality of eggplant fruits, such as softening of the pericarp and increasing the sugar content of fruits. We suppose effect of soil moisture, soil temperature and allelochemicals of Japanese knotweed as a factor.</p>
Journal
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- Japanese Journal of Organic Agriculture Science
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Japanese Journal of Organic Agriculture Science 11 (1), 32-37, 2019-07-31
THE JAPANESE SOCIETY OF ORGANIC AGRICULTURE SCIENCE
