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发表于 2013-5-13 17:01
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AS I WANT MY SHOW PLANTS TO KEEP GROWING THROUGH THECOLD WINTER MONTHS, I HEAT MY GREENHOUSES WITH ELECTRIC FAN HEATERS. I DELAYINSULATING THE GREENHOUSES UNTIL IT STARTS TO GET REALLY COLD, ONCE INTO SINGLEFIGURES (CENTIGRADE) DURING THE DAY I GIVE IN - LOL. ALL THE GLASS IS CLEANEDINSIDE AND OUT TO HELP LET IN MORE LIGHT, BEFORE PUTTING IN THE BUBBLEINSULATION. I USE THE LARGE BUBBLES FOR THE SIDES AND THE ENDS, AND SMALLBUBBLES FOR THE ROOF.
THE MINIMUM NIGHT TIME TEMPERATURE IS KEPT BETWEEN5C-6C, WHICH IS HIGH ENOUGH TO KEEP PLANTS HEALTHY AND GROWING WELL. WHENEVERPOSSIBLE THE GREENHOUSE WINDOWS AND DOORS ARE OPENED TO KEEP THE DAYTIMETEMPERATURE FROM GETTING TOO HIGH.
WATERING FROM THE BOTTOM HELPS KEEP THE COMPOST DRYIN THE TOP OF POTS, ALSO A LARGE ELECTRIC FAN IS ON MOST OF THE TIME TO KEEPTHE AIR MOVING AROUND THE PLANTS.
THIS WILL GO A LONG WAY TO REDUCING ANY THREAT OF BOTRYTIS.
由于我希望我的参赛天竺葵在漫长的冬季亦能够保持生长,我采用电热风扇给我的温棚加温,在气温降到足够低的时候我才开始升温(注:由于英国气候跟我国差别很大,英格兰由于长年收到北大西洋流的影响,四季变化并不明显,冬季气温常常在0-5度之间徘徊,而即使是夏天也有可能气温低到10度以下。)当气温降到10度以下的时候,我开始给温棚加温,为了确保保温效果,我在温棚内贴上泡泡塑料膜促进保温效果。
而到了夜间,我保持棚内最低温度高于5摄氏度,这样天竺葵不会受到冷冻的侵害,也能保持一定长势。当白天温度较高的时候,我会尽量打开窗户和门,让通风足够,这对天竺葵的健康成长是非常必要的,也利于白天和夜间的温差的缩小(注:天竺葵并不喜欢昼夜温差太大,保持在10度以内是最理想的)
我喜欢在天竺葵盆底部放一个托盘,浇水从托盘倒水,这样可以保持花盆顶部的土壤较为干燥,这对于预防葡萄孢子菌类发病是十分有利的。另外,大部分时候我都是打开着大风扇促进通风的。 |
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