Efficient compound fertilizer specially used at acacia crassicarpa seedling stage

Abstract

The invention belongs to the field of an efficient compound fertilizer for woods and particularly discloses an efficient compound fertilizer specially used at an acacia crassicarpa seedling stage. The efficient compound fertilizer contains a large number of elements and trace elements and a plant growth regulator, wherein the content of the large number of elements and trace elements includes, by weight, nitrogen 23.5-45.9%, phosphorus pentoxide 3.3-15.3%, potassium hydroxide 16.3-29.3%, calcium 7.2-18.5%, magnesium 0.66-3.83%, sulfur 2.2-8.5%, boron 0.003-0.025%, copper 0.005-0.12%, iron 0.70-5.55%, manganese 0.002-0.14%, molybdenum 0.001-0.006% and zinc 0.001-0.005%, and the plant growth regulator is 5-15 mg / L of GA or 100-150 mg / L of multi-effect azole. The efficient compound fertilizer specially used at the acacia crassicarpa seedling stage is used for growth at the acacia crassicarpa seedling stage, provides the large number of elements including the nitrogen, the phosphorus, the potassium, the calcium, the magnesium, the sulfur and the like and trace elements including the boron, the copper, the iron, the manganese, the molybdenum, the zinc and the like and the plant growth regulator and has better fertilization and growth promoting effects on seedling height, ground diameter, nursery stock biomass, main root length, the lateral root number, dry weight of roots, leaf expansion area, specific leaf weight and chlorophyll a content at the acacia crassicarpa seedling stage, and the composition formula of the compound fertilizer is optimized.

Description

technical field [0001] The invention belongs to the field of forest tree compound fertilizers, and in particular relates to a high-efficiency special compound fertilizer for the seedling stage of thick-pod acacia. Background technique [0002] Acacia, as an outstanding short-rotation industrial timber tree species in the mountains in South China, has played a huge role in the forestry industry and ecological environment construction from its introduction and trial planting to the current large-scale planting, and its economic and ecological effects are very important. significantly. It is not only fast-growing, but also widely adaptable, resistant to drought and barrenness, fast-growing and high-yield, can produce root nodules, has nitrogen fixation, and has good soil improvement properties. It has become an important fast-growing and high-yielding forest and ecological public welfare forest tree species in southern my country. Acacia crassicarpa, also known as Acacia crass...

AI Technical Summary

Problems solved by technology

At present, there is no special compound fertilizer product for the seedling stage of Acacia pachyrhiza in the market. In order to promote the high-quality industrial scale of Acacia pachycarpa plantation, it is imperative to invent a kind of high-efficiency special fertilizer suitable for the seedling stage of Acacia pachycarpa

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