水種西洋菜 Grow Our Own Watercress

hydroponics-001

水生的西洋菜清脆爽甜,但經常聽說附有水蛭,要格外小心清洗。其實要吃得安心一點,可以嘗試在家種植,簡單方便,收穫豐盛,隨手剪一把下來打邊爐,三數天又長出嫩綠的新葉,五餅二魚般剪剪吃吃,能玩上一整個冬季。

Steps
•  準備一個底部密封的容器,如發泡膠箱。
•  放進塘泥,加水令塘泥保持濕潤狀態。
•  買一把西洋菜回來,剪下莖部末端約兩至三吋,插進塘泥中。
•  不時灌水保持塘泥濕潤,並用洗米水灌溉作施肥。
•  約一、兩周後便會茂密長成,把嫩莖綠葉剪下便可食用,留在泥中的根部會再次長出新的西洋菜。

Tips
綠田園基金農務組首領楊偉明教路:
•  塘泥要夠濕潤才適合水生西洋菜生長,但水分不能過多,否則水分浮於塘泥表面會令蚊蟲滋生。
•  西洋菜屬十字花科作物,適合現在15-25°C的冷天季節種植,蟲害不會肆虐,加上家居環境遠離野生昆蟲聚居地,蟲害問題更加少見;而不是用溪水種植,亦不用擔心水蛭出現。
•  冬季過後天氣回暖,可改種通菜,這樣輪替耕種,適時種植,是預防蟲害的天然方法。

Watercress is an excellent candidate for hydroponic gardens. It grows in wet areas in nature, which makes it ideally suited to a hydroponic growing system. The root system is not large. Watercress is a light plant that will not require additional support. It can be grown in a simple tabletop hydroponic setup

Steps
•  prepare a base-sealed container, such as styrofoam box
•  fill the box with pond soil, keep it moist by adding some water
•  Examine the watercress to find stalks with roots. If you buy watercress at the grocery store,  cut the stalks from the roots up to 2-3 inches long, and place them into the soil
•  Watercress needs ample moisture to grow, so water the plants every day to keep the compost damp. You may apply rice-water as fertiliser as well
•  In about 1- 2 weeks time, the watercress will be established and growing. They are ready to feed. You may simply cut the tender upper part off and roots left behind will keep growing new watercress

For original, please refer to Chinese Verison

資料來源 Source : Go.Asia 

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