Compound fertilizer special for commercial forest of Toona sinensis

Abstract

The invention relates to a compound fertilizer special for commercial forest, in particular to a compound fertilizer special for commercial forest of Toona sinensis. The compound fertilizer is prepared from, by weight, 20-50 parts of humus soil, 5-30 parts of bio-organic fertilizer, 1-5 parts of microelement fertilizer, and 30-70 parts of macroelement fertilizer. The macroelement fertilizer comprises nitrogenous fertilizer, phosphatic fertilizer and potassic fertilizer by the weight ratio of (15-30): (16-20): (11-13), and further, the weight ratio of the effective constituents N, P2O5 and K is equal to (11-14): (4-5): (6-8). The microbial active flora of the bio-organic fertilizer is greater than two hundred millions, and each gram of the bio-organic fertilizer contains 20-40 billions of organic active bacteria. The compound fertilizer meets nutrient requirements of commercial forest of Toona sinensis, and further, by application of the bio-organic fertilizer, the C and N ratio of soil is optimized, beneficial microbial flora is increased, and utilization of the fertilizer and yield of the commercial forest of Toona sinensis are both increased.

Description

technical field [0001] The invention relates to a special compound fertilizer for timber forests, in particular to a special compound fertilizer for Chinese toon forests. Background technique [0002] Toona sinensis, also known as Toona sinensis, belongs to the perennial deciduous tree of the family Meliaceae Toona. Toona sinensis has a long history of cultivation in my country. It is not only a unique fast-growing timber tree species in my country, but also called "green health food" abroad. Toona sinensis has strong adaptability and is easy to cultivate. It can grow in subtropical or warm temperate regions with an average temperature of 8-12°C and annual precipitation of 600-800m, and can be vertically distributed in high mountains up to 1800m. [0003] The high edible value and medicinal value of Chinese toon have been loved by consumers. Chinese toon is a unique tree vegetable in my country. According to research, Chinese toon contains more protein, amino acids, variou...

AI Technical Summary

Problems solved by technology

[0005] Due to the long-term continuous management of forest land, many continuous-planting Toona sinensis plantations have experienced a decline in yield and degradation of soil fertility.

With the improvement of intensive management, afforestation units and forest farmers have gradually begun to apply fertilizers. However, due to the slow development of the development and production of special compound fertilizers for forest trees in my country, there are very few varieties of supply, and there is a lack of special fertilizers for forest trees on the market. The majority of forest farmers basically use agricultural chemical fertilizers. , not only affects the effect of fertilization, but also easily causes forest land soil compaction, quality decline, nutritional imbalance and often physiological diseases or poor material properties and weak resistance, resulting in low ability to resist natural disasters

[0006] Aiming at the problems of unreasonable fertilization and low fertilizer utilization rate in the management and management of Chinese toon timber forests, combined with the law of Chinese toon fertilizer demand, through balanced fertilization experiments, a special compound fertilizer formula for Chinese toon was developed

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