The revenue from the planting of eucalyptus is of concern to many farmers, for example, for the seven-year rotation period, the cost of afforestation is about 2,500 acres, plus a total of 3,200 acres per year for forest land rental. Depending on the intensity of the input, at least 12 tons of acre would be produced over a seven-year period, and if the market price for wood reached $500 per ton, the yield would be $2,800 per acre。
In general, 8-15 cubic metres of output wood per acre over the 5-7 years of its growth cycle, with a total income of 3,200-9,000 yuan per cubic metre. The net profit is between $1,500 and $4,000, net of the cost of seedlings, fertilizers, labour, etc. If properly managed, additional revenue would be generated during the third year of logging, with the most significant returns in 5-7 years of major logging。
For higher returns, the selection of woodlands is important. It is important to select mountains with a flat slope, sufficient light and below 600 metres above sea level, with an additional production of 3-5 cubic metres of wood per acre in good condition and an additional income of $1200-3000. Varieties have to be selected, such as the dh4 and the dh32-29 fast-breeding system, which can increase growth rates by 20-30 per cent and reduce the rotation period by 1-2 years。
The density of the plant shall be observed, generally 83-111 acres, with a distance of 2. 0 m x 4. 0 m or 2. 0 m x 3. 5 m. The whole area was ploughed with 40 x 30 x 30 cm, applied 15 days before the planting, and used cylindrium fertilizers with an active nitrogen phosphorus content of more than 15 per cent, at 0. 5-1 kg per den. The tree selects a 25-35 cm-high light substrate container seedling, which is tested for 10 days after planting and has a replacement rate of over 95 per cent。
Forest land management is not loose, and weeding is done when the coverage is over 60 per cent or more than 30 cm, using manual or mechanical means to the extent possible. A pine land of 1. 5 - 2 months after afforestation, with a slope of less than 10°, with a band of 120 - 150 cm wide and 20 - 25 cm deep, and other forest land with a single pine soil with a radius of 50 cm for reclamation. The first time, two months after the planting, was followed by 0. 5 kg of fat for the sole purpose of the americ tree containing trace elements, followed by 1 and 1. 5 kg for the second, third and fourth years。
The yield advantage is more obvious than that of the sugar cane. One acre earned about $8,000 over five years, at a cost of $2837. 5 for 5163. 5 for sugar cane, at a cost of $3474 for one acre and $312 for a loss of $354. The accounts of large households are clearer: more than 4,000 acres of acre of eucalyptus, with one acre earning more than 2,000, at a total cost of $225,000 over a five-year period of 100 acres, at a sale price of $700,000 and a profit of $475,000。
By insisting on “good breeds, good land, good practices, good practices” and extending the rotation period to seven years, euphoria can grow higher and thicker, yielding 12-15 cubic metres of wood per acre, and yielding less than a million dollars. While high output requires high input, inputs and outputs are in positive proportion and cost-effective。
