Опубликована: Май 16, 2024
Reed (Phragmites autralis) is a plant species with seasonal reproductive cycle, it has very high biomass in U Minh Thuong National Park. This characteristic that management of forest fire dificult Vietnam. To evaluate height, diameter, density, growth, fresh and dry, biochar on reed plants; include plant, stem, leaves, flowers; analysis indicators biomass, reed. compare chemical peat Kien Luong Mekong Delta. Relationship growth biomass. Study adsorption from pig urine inorganic nitrogen phosphorus. types peatland thickness, each one had 5 plots, investigated height (Ht), diameter stem (D0.0); weigh part plants, stems, leaves flowers. the soil samples collected 20 analyzed for its composition, then adsorbed phosphorus inorganic. The results evaluated parts dry them. Results 3.39 – 4.74 m, diemeter 1.8 3.17 cm, 0.04 0.1 m3 / m2, weight 15.46 20.54 kg m2. 127.34 358.58 g, trunk 79.55 217.78 33.78 112.16 flowers 4.4 19.64 g. A Biochar 26.16 73.57 14.41 39.44 leaf 8.16 22.59 flower 2.59 11.54 Peat analysis, decrease P2O5, SO42-, NH4+ increase are pH, humic acid, N%, K2O, Fe2+. Compare higher 9/11 as OM%, Ash%, C%, P%, K%, Ca%, Mg%. Indicators lower pH SiO. can ammonium, nitrate, nitrogen, also discovery possible to propose use data environment treatment application fertilizer agriculture region.
Язык: Английский