GOST 18444-1982 Suction dredges for melioration General technical conditions《土壤改良用吸入挖泥机 一般技术条件》.pdf

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DB43 T 876.3-2014 高标准农田建设 第3部分：土壤改良.pdf

STAS 5432 1-1985 Land amelioration works EXCEEDING PROBABILIT1ES AND INSURANCE DEGREES《土壤改良措施 超越概率和安全程度》.pdf

GOST 26462-1985 Agricultural afforestation Terms and definitions《农林土壤改良 术语和定义》.pdf

GOST R 51661 3-2000 Peat for soil-improving Specifications《土壤改良泥炭 规范》.pdf

NF U44-051-2006 Organic soil improvers - Designations specifications and marking 《有机土壤改良 名称 规范和标记》.pdf

NF X31-006-2000 Quality of soils - Terminology of NPK fertilization 《土壤的质量 NPK土壤改良的术语》.pdf

DB37 T 1906-2011 烟田土壤改良技术规范.pdf

DB51 T 2498-2018 冬水稻田土壤改良技术规程.pdf

DB51 T 2651-2019 川西北地区沙化土地土壤改良技术规程.pdf

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