Optimal potash fertilizer application boosts tomato yield in solar greenhouses.
A study looked at how different amounts of potash fertilizer affect tomato plants in a solar greenhouse. They found that using potash fertilizer increased the tomato yield. The best yield was seen when 63.8kg of potash fertilizer was used in 667m2 of greenhouse space. The most optimal yield and cost ratio were achieved with 20kg of potash fertilizer in 667m2.