Effects of Different Materials and Their Mixtures on Growth and Yield of Tomato and Soil in Greenhouse

Field experiments were adopted to study the effects of different materials and their mixtures on soil properties, growth, yield and quality of tomato in secondary generation greenhouse of Ningxia. The results showed that soil pH and bulk density was significantly decreased but soil total salt, available N, P and K, as well as total porosity was increased under organic and inorganic fertilizer application. Field capacity was significantly decreased for organic fertilization but for inorganic fertilization. Soil total salt, available N, P and K also was increased under application the mixture of organic, inorganic fertilizer and fine sand particles. Soil phosphatase, urease, and invertase activities, as well as height, width of shoots and thus yield of tomato were increased after applied organic and inorganic fertilizer. Stem thick was significantly promoted due to increased soil porosity by application mixture of organic and inorganic fertilizer with fine sand. Increased solvable sugar content but decreased total acidity of tomato significantly augment ratio of sugar and acidity duo to the application of different materials, which improve the quality of tomato. Both VC and NO3--N content was promoted by application the mixtures of organic and inorganic fertilizer with sandy soil.