Abstract
Mineral fertilizers are expensive and last only a relatively short time. Proper handling of fertilizers has a direct impact on crop quality and profitability. Currently, straight fertilizers are divided into types, A and B, based on the fertilizer’s sedimentation properties when mixed. Therefore, to solve these flaws, we developed a vitamin C-substrate organo-mineral fertilizer, AGH-Ringer. This study consisted of a fertilizer equivalency test, which lasted 15 weeks of soil cultivation in a farm field, using lettuce (Lactuca sativa L., ‘Jeok Chi Ma’) with AGH-Ringer as a test fertilizer. This fertilizer was based on powder compound-type fertilizer r-Ringer and manufactured by chelating essential minerals with a vitamin C substrate to have NPK contents in a ratio of 18.9:14:4.0. In the onsite evaluation, the superiority of AGH-Ringer was demonstrated through an effect of growth stimulation in both aerial and rhizosphere parts of the plants at suitable soil temperatures. This fertilizer also increased yield, even in inadequate low-temperature conditions. In addition, AGH-Ringer increased the absorption and bioavailability of minerals in lettuce leaves at harvest. The mineral absorption ability showed a uniform pattern during the entire harvest period. It has been confirmed that AGH-Ringer, manufactured with vitamin C as a substrate, is a fertilizer with excellent efficacy that increases growth and harvest simultaneously, solving the existing problems of chemical fertilizers such as sedimentation and lack of mineral absorptivity in nutrient solution systems.
Highlights
Agriculture has a played a major role in the development of human civilization for a long time
The improvement of growth in the aerial parts and increased stem weights can be attributed to the easy movement of minerals caused by chelation with vitamin C. These results demonstrate that the effectiveness of fertilizer using vitamin C as substrate is excellent in promoting plant growth
Straight fertilizers are very convenient to use when a farm is equipped with proper facilities
Summary
Agriculture has a played a major role in the development of human civilization for a long time. Hydroponic cultivation, which is an advanced cultivation technique, The concentration range of inorganic elements that promote optimal growth in crops varies by nutrient type and crop species. At present, highly concentrated mineral fertilizers are frequently used in the cultivation of all crops These fertilizers cause serious leaching and infiltration of N and P into soil and surface water, and are inconvenient to use due to sedimentation [8]. Because of these problems, fertilizer is divided into types A and B, and each can be supplied to the crop only after dissolution through a dedicated supply system
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