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Influence of Seed Pretreatment, Sowing Density and Cover Materials on Growth of Summer Leafy Vegetable in Yilan Area

並列摘要


Experimental results showed that the germination coefficience of Pok Choi and Lettuce were higher than 98 after 4 days of soaked at room temperature for 12 hours. Amaranthus had germination coefficience more than 91 on 5℃ for 8 hours treatment. Pok Choi Golden and Chiguapo showed optimum growth in summer and the highest yield were more than 12.7m.t./ha with the planting density of 4kg/ha. The best varieties of Amaranthus were White and Pendon in summer and produced the highest yield of 13.4m.t./ha with 5kg/ha sowing density. The quantity and quality of Amaranthus and Pak Choi were highly improved when covered with non-woven fabric which produced 17.7 and 16.5m.t./ha yield respectively, and the numher of insect bite was reduce to two-third.

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