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High-Yielding Plantation of Paulownia
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Based
on the investigation, the paulownia high-yielding plantation in 10 years old can grow its mean height to 16-20 m, its mean DBH to 35-40cm and its standing volume to 0.5 m3 per tree. Aiming at reaching these growing criteria, following high-yielding techniques should be adopted for developing paulownia timber plantation.
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1.
Appropriate selection of sites and species
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2.
Deep plaguing for site preparation with sufficient application of organic fertilizers
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3.
Establishing paulownia-crops intercropping models with suitable tree planting density
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4.
Strengthening tending and making tree straight with piling up soil
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plantation in hilly area
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5.
Additional application of N and P mixture fertilizers
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6.
Immediate removal of buds, pruning and stem extension
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7.
Cutting off witches broom branches and control pests
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High-yielding Plantation of Paulownia in Shandong Province
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