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Research and build process of biochar substrate production and its applied for green mustard on basalt red soil in Lam Ha district, Lam Dong province. In order to assess the impact of biochar substrate on the soil fertility improvement and yield of green mustard. The experiment was built with 5 treatments (NT1
is control 1: 100% of NPK inorganic; NT2 is control 2: 70% of NPK control + 2 tons of organic fertilizer; NT3: 70% of NPK control + 1 ton of biochar substrate; NT 4: 70% of NPK control + 2 tons of biochar substrate; NT5: 70% of NPK control + 3 tons of biochar substrate; Control be 120 N - 100 P2O5 – 80 K2O each treatment
was repeated 3 times. After 3 consecutive crops (3/2018 to 12/2018) applying biochar substrate on Rhodic ferralsols cultivated green mustard with area 375 m2 in Phuc Tho commune, Lam Ha district, Lam Dong province from March to December 2018 showed that the treatment applied 2 tons of biochar substrate/ha/crop can improve pH, CEC, OM, Nts, P2O5, K2O, Ca2+, Mg2+ and Al3+ in soil as well as yield of green mustard compared to the remaining fertilizing doses.
Atrazine, Environmental Science & Technology 43:
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