The area and yield of protected vegetables production have exceeded consumer demand in Hebei province. Vegetable transported from other region has induced more and more pressure to local market.
河北省设施蔬菜面积及蔬菜总产量已经饱和，异地运销蔬菜对省内市场影响越来越大，周年消费品种结构发生明显变化，季节差价及品种差价趋于平衡。
Source and effect of Protected vegetable base soil heavy metals pollution on vegetable quality were studied in this article, and the control methods of heavy metal pollution was expounded carefully.
本文综述了重金属污染现状，各种污染金属的来源，重金属对蔬菜品质产生的影响，并着重阐述了重金属污染的防治方法。
These powerful yet delicate enzymes are protected by a vegetable-based enteric coating which ensures optimal absorption and utilization in the blood stream.
以植物为基础的酶，胰腺酶和抗氧化剂协同组合。这些酶是强大而又微妙的蔬菜保护为基础的肠溶衣，确保最佳的血液流吸收和利用。
Weak light is one of the important environmental characteristic in the protected cultivation, and the shortage of light is greatly influencing the yield and the quality of the vegetable products.
弱光是设施栽培中一个重要的环境特点，光照不足严重地影响着蔬菜产品的产量和品质。
Cucumber, as the main protected cultivation vegetable, is sensitive to continuous cropping.
黄瓜是设施栽培的主要蔬菜作物，对连作反应敏感。
Cucumber, as the main protected cultivation vegetable, is sensitive to continuous cropping.
黄瓜是设施栽培的主要蔬菜作物，对连作反应敏感。
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