Production technology of large fruit lettuce for processing needs in winter harvesting

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  • 加工・業務用需要に対応する冬レタス大玉安定生産技術
  • カコウ ・ ギョウムヨウ ジュヨウ ニ タイオウ スル フユ レタス オオダマ アンテイ セイサン ギジュツ

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Abstract

A trial related to production technology of large fruit lettuce for processing needs in winter harvesting. 1. Large tunnel cultivation increase fruit weight. Floating row cover of air field porosity 25% over is decreashing bacterial rot. 2.The recommended cultivar is 'Legacy' and 'Layyard' in winter harvesting in Miyazaki. 3. Poly film with 2.25% effective air field porosity as covering material of tunnel get ventilation labor saving.Replace the floating rou cover with row air field porosity at start head formation, gain the large fruit. 4. The sparse planting as two-row increase the 21, size in smol tunnel cultivation. And the sparse planting is able to concentrated harvesting because the uniformity of fruit is improved.

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