It is often quite difficult to identify a deficiency or toxicity symptom in the field because they never really occur as a single element deficiency...
The disease is found in conditions if high humidity, especially in poor ventilated greenhouses or where the ventilation is not controlled properly. Optimum temperature for...
Changing the length of the dark and light periods is another way of growth control. It is an important aspect of greenhouse culture, especially flowers....
Understanding the effect of radiation on plants will help identify weaknesses in your greenhouse. The effect of radiation can be divided into three parts; its...
Resistance to chemicals is due to the intense selection pressure exerted on the population that is controlled. There is only a limited number of chemicals...
The protected greenhouse environment The greenhouse environment is designed to allow plants to perform close to their genetic optimum so that the grower achieves maximum...
Trellising and training of greenhouse cucumbers Trellising of cucumbers should not be confused with pruning. They do go hand in hand, but are very different....
Cucumbers are sensitive to water stress (to little water) and to water logging (over watering). Any of these two conditions will reduce plant vigour and...
There is no doubt that hydroponic farming systems are feasible as a commercial operation. Proof is in the application of this technology worldwide. I do...
Heating the nutrient solution of a NFT hydroponic system may sound like a lucrative option for early yields. Tampering with the nutrient solution temperature is...
Spinach or Spinacia oleracea L. belongs to the Chenopodiaceae family. The Chenopodiaceae family also includes crop such as beet (Beta vulgaris L. subsp. vulgaris) and...