Abstract Today, there is a growing trend towards growing peppers in foil or glasshouse, rather than in the open field. The advantage of these over open field cultivation is that they can increase the yield, improve the quality of the crop and the timing of the production, which in turn gives a much higher yield security. The most popular and least expensive investment for growing under foil is container growing. The aim of my research was to study the yield of the pepper variety Claudius under different nutrient solution formulations. I applied four treatments, which consisted of four different nutrient solution compositions. The first treatment had a nitrogen to potassium ratio of 1:1, the second treatment 1:1.3, the third treatment 1:1.6 and the fourth treatment a N:K ratio of 1:2. Each treatment was repeated four times. Each treatment involved 80 plants, which is 20 plants per replicate. During the experiment, I found that the different nitrogen/potassium ratios of the nutrient solution affected not only the weight of the harvested fruits, but also the number of fruits. Most of the fruit harvested in all the harvests was from the second treatment, where the potassium to nitrogen ratio was 1.3 to 1. On the other hand, plants treated with N:K 1:2 showed a large reduction in the number of fruits. The results indicate that increasing the potassium content of the nutrient solution in relation to N at a higher dose than 1:1.3 increases the number of fruits but changes the total harvested fruit weight in a negative direction

Keywords: pepper (Capsicum annuum L.), nitrogen, phosphorus, potassium, nutrient solution, yield

biology

Presentation: None