Biochar-based organic special fertilizer for watermelons and production method thereof

Abstract

The invention provides a biochar-based organic special fertilizer for watermelons and a production method thereof. The special fertilizer is prepared from the following components in parts by weight:30-40 parts of biochar, 40-60 parts of organic materials, 6-8 parts of nitrogen (N2), 2-4 parts of phosphorus (P2O5), 6-9 parts of potassium (K2O), 10-15 parts of perlite, 1-2 parts of potassium sulfate, 1-2 parts of ammonium sulfate, 0.5-1 part of ammonium nitrate, 0.5-1 part of humic acid, 1.5-2.5 parts of wood vinegar, 1-2 parts of wood tar, 0.05-1 part of a probiotic agent, 0.5-1 part of a fertilizer controlled release agent, and 1-3 parts of a forming aid. The organic matters are solid livestock and poultry manure and decomposed organic plants with the water content of less than or equalto 40%. The preparation method comprises the following steps: carrying out high-temperature pyrolysis on crop straws to prepare biochar, adding the biochar and organic matters into a fermentation tank, carrying out mixed fermentation for 10-20 days, adding an ingredient granulator into the base material, granulating the mixture and finally spraying wood tar onto the granular fertilizer. The special fertilizer contains a large amount of organic nutrient elements, effectively utilizes waste resources, improves sandy soil, is suitable for planting watermelons, and improves taste and yield.

Description

technical field [0001] The invention belongs to the field of agricultural bio-organic fertilizers, and in particular relates to a watermelon biochar-based organic special fertilizer and a production method thereof. Background technique [0002] Watermelon is the most commonly used fruit in summer. It is not only rich in water but also rich in nutrients. It contains protein, sugar, calcium, phosphorus, iron, potassium, vitamin A, C and amino acids necessary for the human body; Diuretic and laxative effects. The soil for planting watermelons is drought-tolerant and afraid of waterlogging. It is advisable to have fertile sandy loam soil with good ventilation, let alone a garden where watermelons are planted continuously. Existing planting of watermelon, long-term use of chemical fertilizers, neglect of soil moisture and nutrient resource management, soil organic matter content decreased, serious soil hardening and acidification, seriously affecting the yield, nutritional conte...

AI Technical Summary

Problems solved by technology

[0007] The problem to be solved by the present invention is to aim at the management of water and nutrient resources of the existing watermelon loam soil, the decrease of soil organic matter content caused by the application of a large amount of chemical fertilizers, and the serious compaction and acidification of the soil. Charcoal cannot provide a large amount of organic nutrients and trace elements needed by fruits and vegetables. A watermelon biochar-based organic special fertilizer and its production method are provided, which can biochar-based crop straws and fermented with livestock and poultry manure to biochar-based fertilizers. Organic fertilizer, containing a large amount of nutrients such as nitrogen, phosphorus, and potassium, and trace elements such as boron, zinc, manganese, iron, copper, or molybdenum, maximizes the effective use of waste resources, and improves the sandy soil suitable for planting watermelons. The loam is acid-base Moderate, improve taste and yield