China's 'wonder' tree
MetadataShow full item record
CTA. 1989. China's 'wonder' tree. Spore 23. CTA, Wageningen, The Netherlands.
Permanent link to this item: http://hdl.handle.net/10568/45136
The Paulownia tree offers farmers and agroforesters a species that is compatible with many crops. It has other attributes too, which enhance crop growth. Nine species of Paulownia are native to China, Korea and Japan. But it is Chinese researchers...
The Paulownia tree offers farmers and agroforesters a species that is compatible with many crops. It has other attributes too, which enhance crop growth. Nine species of Paulownia are native to China, Korea and Japan. But it is Chinese researchers who are promoting the tree in China and elsewhere. The tree grows straight, which makes it useful for all types of timber: it grows fast, on average two metres a year; and a five-year-old tree can measure 17 metres high with a trunk diameter of 30cm. The flowers are popular with bees, and the leaves make good fodder. Paulownia have a deep root system, and leaves sprout and fall late in the growing season so the species are ideal for intercropping. Trials have shown it to be compatible with wheat maize, potatoes, groundnuts and cotton: when planted at five metre intervals in ten metre rows with wheat, wheat yields were the same as pure wheat stands. However, yields increased 7% to 10% when row spacing was increased to 20 to 40 metres. In China almost 2 million hectares of cropland are now being intercropped with Paulownia and Agroforeshy systems based on Paulownia are being encouraged on a large scale. China is also giving seeds to other countries. International Council for Research in Agroforesty - PO Box 30677 - Nairobi KENYA
SubjectsCROP PRODUCTION AND PROTECTION;
- CTA Spore (English)