降低栽植田水位及應用農業藥劑或土壤添加物防治蕹菜青枯病

Lowering Water Level in the Field and Application of Pesticide and Soil Amendments to Control Bacterial Wilt on Water Convolvulus

10.6957/RBHDAIS.200408.0057

邱安隆(An-Long Chiou)；陳哲民(Che-Min Chen)

蕹菜 ； 青枯病 ； 青枯病菌 ； 腐植酸鉀 ； water convolvulus ； bacterial wilt ； Ralstonia solanacearum ； humic acid potasium

花蓮區農業改良場研究彙報

22期（2004 / 08 / 01）

57 - 66

繁體中文

採收前降低蕹菜栽植田水位並於採收後立即噴施81.3％嘉賜銅混合可濕性粉劑（81.3％ Kasugamycin + Copper oxychloride，WP），可有效地防治青枯病之發生率。採收前三天栽植田水位降至2公分以下，且於採收後每分地栽植田施用100公斤石灰，3－5天後將溫泉水灌入蕹菜田，維持水深5－10公分，直至採收前三日再降低栽植田水位，可顯著降低青枯病發生率，使其成活率達90－95％以上，並可提高蕹菜株高。曬田期施用58％腐植酸鉀，能抑制青枯病發生，提高蕹菜株高與鮮重，若施用48.5％鈣鎂肥反而抑制蕹菜植株生長並促進青枯病發生。

Lowering the water level to 2 cm high in the field for 3 days before harvest and spraying 81.3% kasugamycin mixed copper oxychloride could significantly reduce the incidences of bacterial wilt of water convolvulus. Application of lime (1 ton/ha) after each harvest not only decreased the incidences of bacterial wilt but also increased the high of water convolvulus. Application of 58% humic acid before planting seedling reduced significantly the incidence of bacterial wilt of water, and increased the high and fresh weight of the plants. On the contrary, application of 48.5% calcium magnesium increased the incidences of bacterial wilt and inhibited to the growth of water convolvulus.