Fertilizer dedicated to eucalyptus

Abstract

This invention discloses a fertilizer specific for eucalyptuses. The fertilizer comprises: N 5-18 wt.%, P2O5 7-15 wt.%, K2O 5-12 wt.%, Cu 0.05-0.3 wt.%, Zn 0.05-0.4 wt.%, and B 0.05-0.2 wt.%. The fertilizer can supply nutrition for eucalyptuses growth, thus can raise the productivity of eucalyptuses. The fertilizer is particularly suitable for eucalyptuses in Guangxi province.

Description

technical field [0001] The invention relates to the field of compound fertilizers in forestry production, in particular to a special fertilizer for eucalyptus. Background technique [0002] Eucalyptus is the general name of Eucalyptus species in the family Myrtaceae, and its Latin name is Eucalyptus, which is native to Australia, Indonesia and the Philippines. Eucalyptus has been introduced to my country for more than 110 years, and it has become a strategic tree species for fast-growing and high-yield forests in southern my country. In 2002, according to the statistics of relevant departments, the area of ​​eucalyptus plantations in the world was 18 million ha 2 , accounting for about 25% of the area of ​​tropical plantations, providing 180 million m of timber per year 3 , China's eucalyptus plantations account for 12% of the world's total, or 1.5 million hm 2 , mainly distributed in Guangxi, Guangdong, Yunnan, Hainan, Fujian, Sichuan, Hunan, Jiangxi and other provinces....

AI Technical Summary

Problems solved by technology

In terms of seedlings, due to the mature tissue culture and cutting technology, the cultivation of seedlings is also relatively uniform and standardized, and the quality of seedlings can be easily guaranteed; and in terms of fertilizers, due to the soil in various places, the law of fertilizer requirements at each growth stage of eucalyptus, fertilizer varieties, raw material sources, Due to the differences in fertilizer manufacturers and other aspects, there is no uniform standard for eucalyptus fertilization in terms of fertilizer nutrients, fertilizer formula, fertilizer amount, fertilization time, and fertilization methods.

For example, the red soil area in Guangxi occupies a large proportion, and the nitrogen, phosphorus, and potassium nutrients in the soil are relatively deficient, and the calcium and magnesium contents are also insufficient, while the trace elements, especially copper, zinc, and boron, are low in content. The current eucalyptus fertilization management is relatively chaotic: some base fertilizers are applied, and some do not apply base fertilizers; when applying base fertilizers, phosphate fertilizers, organic fertilizers, and compound fertilizers are used; when applying topdressing fertilizers, urea, potassium fertilizers, and organic-inorganic compound fertilizers are also used. The nutrient content of fertilizers is also different. There are organic fertilizers containing 15%, 20%, 25%, etc., and inorganic fertilizers containing 25%, 30%, 35%, 40% and above nutrients, and some trace elements are added. some are not added

Due to the incomplete and unbalanced nutrient content of the above fertilizers, they cannot fully meet the nutrients required for the growth of eucalyptus, and the general yield increase efficiency is low. Relevant data show that the current average annual growth volume of eucalyptus in Guangxi is only 18m 3 / hm 2 about