Tell me how to increase the loading of cucumbers in the greenhouse? I water the plants every morning until the heat, and in the evening I do not water them in order to avoid rot and disease, I feed with mullein plus potassium. There are a lot of ovaries, but all the cucumbers are small. What do they miss? Maybe something else needs to be fertilized? Who knows what, advise.
The size of the cucumbers also depends on the variety. Maybe you just planted small-fruited ones, and now you expect large sizes from them? Illumination is very important, for this, cucumbers are tied to trellises. Cucumbers are not even so important feeding as the presence of carbon dioxide in the air. To increase its content, they put dry ice or put containers with a mullein filled with water.