![]() ![]() ![]() Animal-based fertilizer, due to intrinsic composition, increased total tree biomass and carbohydrate leaves content, and led to lower soil nitrate concentration and higher P and Mg exchangeable in soil extract compared to vegetal-based fertilizer. Liquid organic fertilization also resulted in an increase of soil organic matter content. Moreover, organic fertilization positively affected the carbohydrate content (fructose, glucose and sucrose) mainly in summer flush leaves. Liquid organic fertilization resulted in an increased uptake of macro and micronutrients compared to mineral fertilized trees. Results showed that plants fertilized with animal based liquid fertilizers exhibited higher total biomass with a more profuse development of new developing organs (leaves and fibrous roots). Nutrient uptake, vegetative growth, carbohydrate synthesis and soil characteristics were analyzed. The source of the fertilizer (mineral or organic) had significant effect in the nutritional status of the organic and conventionally managed mandarins. UAN does not pollute the environment and can be used for any kind of treatment - in autumn, early spring or later, already for foliar feeding of the risen plants.The main objective of this study was to compare the performance of two liquid organic fertilizers, an animal and a plant-based fertilizer, with mineral fertilization on citrus trees. The foliar pathway supplies nutrients immediately and directly to where they are needed - in the leaves. In addition, UAN is perfectly suitable for both ways of feeding the plant - root and foliar (through the surface of the leaves). UAN contains at once three forms of nitrogen, which are gradually transformed by soil bacteria into a form accessible to plants. It does not matter what the weather and humidity of the air, because the working fluid is stored in a sealed container. During storage of liquid fertilizers there is no risk of caking, loss of valuable properties. Similar moments simply do not exist when using liquid fertilizer forms.Īll stages of using of the liquid fertilizers are automated. At the same time, the pouring of granular solid forms leads to the appearance of a large amount of dust, from which it is necessary to protect the respiratory system. Safety and ease of use of liquid fertilizersĪll the processes associated with the delivery, storage, application of liquid fertilizers are technologically safe, do not allow workers to contact the fertilizer. Liquid fertilizers appeared later and are a more high-tech solution. Another problem is already nitrogen-containing granular forms - they lose up to 40% of nitrogen after falling on the soil. Mixing different solid fertilizers in the same tank is unacceptable, since their physical properties are different, and it is not possible to ensure the uniformity of the precipitation of both fertilizers. Therefore, having set the intensity of the rash, the driver must further independently monitor the speed of the machinery to maintain the intensity of the application at the desired level. For solid forms, this is not very easy to do. And here the second problem is manifested - the speed of the rash should be controlled and synchronized with the speed of movement of machinery in order to comply with the norms of introducing this substance for a given plant variety. Accuracy of fertilizer delivery decreases directly during its spreading.Īpplying various technologies, for example, vibration systems, it is possible to reduce the damage to the granules as they exit the tank and achieve a constant feed rate. To prevent the solid form from caking and spilling out, stirrers are used, which in turn damage the granules, changing their physical properties right during use. The rate of rash from the container itself will be affected by the size of the granules, their structure, humidity. ![]() The rate of release of granular forms of fertilizer from the tank depends on a number of factors. Today, there are a lot of technological solutions to introduce such a form on the market, but the common problem for them is the inaccuracy of the dosage. If the agrarian is going to grow beans on the field, and then use their greens to enrich the soil with nitrogen during plowing, he will also use non liquid form of fertilizer. Actually, organic fertilizers in their majority is also a solid form of fertilizers. The latter have long existed in the mineral fertilizer market. Presented on the market fertilizers are divided into liquid and solid. ![]()
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