Influence of Tomato and Paprika Paste Residues on Soil Properties and Potato Growth

Abstract

In this study seven different applications were performed with the residues of tomato paste factories, green tomatoes, cold processed tomatoes, paprika wastes, ashes of milk processing, and urban wastes in a field experiment on potato growth. The residues were combined with the mineral N, P, K fertilizer as soil amendments. These wastes were applied to the soil and allowed to compost for five months before the Solanum tuberosum cv. Marabel were planted. During vegetation the K and B minerals in the soil decreased whereas, Na increased. The nitrogen, Zn, and B of the leaves were below adequate levels. The iron in the leaves was above adequacy and Cr was under the critical value. The green tomato and paprika wastes had a diminishing effect on leaf Cd. The paprika paste wastes with the addition of minerals N and P increased many elements in the tubers to the highest level by fresh weight. Co and Pb were considerably higher by the dry weight of the tubers than most of the given values. The tuber yield was greatest with “Mineral K +Wastes N, P”. Tubers with a diameter >55 mm were affected by the treatments significantly and “Wastes Only” was the most effective treatment. “Waster K+Mineral N, P” had a dominating effect on all of the