首页> 外文期刊>Greenhouse Canada >DEALING WITH EDEMA
【24h】

DEALING WITH EDEMA

机译:与EDEMA交易

获取原文
获取原文并翻译 | 示例
           

摘要

Edema (or odema) is a physiological condition in many crops. I have seen it more prevalent in tomatoes and cucumbers, and in bedding plants - especially with ivy geraniums. With cucumbers and tomatoes, it is more common in winter crops.What happens when edema, powdery mildew, nutritional deficiencies and spider mites hit your cucumber crop at the same time? Of course, if all of the above happens all at once, you are quite frustrated and upset. If it happens when the price is very good,then economically it was very scary as well.I noticed that during this past winter, the quality of imported cucumbers was very poor especially with mini cucumbers.Growers must understand the functions of plants are tightly integrated and highly dependent on each other. I always like to give the example of the trace element molybdenum. I call it "holy moly" because it is a trace element that is required in only thesmallest of amounts. If iron is 3 ppm, then molybdenum is 0.15 ppm.If this element is lacking or is not present in sufficient quantities in the nutrient solution, then the conversion of nitrates to ammonium nitrogen in the cells is reduced or cannot take place. So it means that due to a shortage of "moly," while the nitrates will start building up and the leaves will start turning dark green, further products will not be formed that are needed in plant metabolism and subsequent growth.
机译:在许多农作物中,水肿(或湿疹)是一种生理状况。我已经看到它在西红柿和黄瓜以及被褥植物中尤其是常春藤天竺葵中更普遍。黄瓜和西红柿在冬季农作物中更常见,当水肿,白粉病,营养不足和红蜘蛛同时侵害您的黄瓜作物时会发生什么?当然,如果以上所有条件同时发生,您会感到沮丧和沮丧。如果在价格很好的情况下发生这种情况,那么在经济上也很可怕。我注意到,在过去的冬天,进口黄瓜的质量非常差,尤其是迷你黄瓜。种植者必须了解植物的功能紧密结合彼此高度依赖我总是喜欢举微量元素钼的例子。我称其为“圣钼”,因为它是微量元素,仅需最小量。如果铁含量为3 ppm,则钼含量为0.15 ppm。如果营养液中该元素缺乏或含量不足,则细胞中硝酸盐向铵态氮的转化会减少或无法发生。因此,这意味着由于缺乏“钼”,虽然硝酸盐开始累积而叶子开始变为深绿色,但不会形成植物代谢和后续生长所需的其他产物。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号