IV. REFERENCES 1. Chen Zhou Yun, The Secular (2005). Durian trees Vietnam, Publisher (PUBLISHING HOUSE) agriculture.2. Doan van (eds.) (2002). The manual analysis of soil, water, fertilisers, plant. Agricultural PUBLISHING HOUSE, Hanoi.3. Nattaporn PRAKONGKEP1 *, Robert j. GILKES2 and Wanpen WIRIYAKITNATEEKUL3 (2014). Agronomic benefits of durian shell biochar.4. http://www.vuonrauxanh.com/threads/biochar-than-sinh-hoc-voi-san-xuat-nong-nghiep.1556/5. http://hoaphonglan.org/nuoi-trong/cach-cham-soc-va-nuoi-trong-lan-vu-nu.html # sthash. r96OS9zg. dpuf6. http://runglan.com/2015/08/trong-hoa-lan-xuat-khau-o-lam-dong-ky-thuat-trong-lan-vu-nu/7. http://www.vietlinh.vn/trong-trot/lan-gia-the-xo-dua.asp
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