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DB15/T 3397-2024 Technical code of practice for comprehensive improvement of salinization farmland in Xiliaohe irrigation district via email in business day valid
DB15/T 3398-2024 Technical code of practice for rapid improvement of saline alkali land in irrigation area along the Yellow River via email in business day valid
DB15/T 3399-2024 Technical code of practice for improving soil fertility of salinealkali farmland in irrigation area along the Yellow River via email in business day valid
DB15/T 3400-2024 Technical code of practice for biological treatment of saline-alkali soil by planting saline-alkali tolerant plants along the Yellow River irrigation area via email in business day valid
DB15/T 3405.1-2024 Technical regulations for earthworm breeding and pollution control and soil improvement―― Part 1：Technical specification for eathworm breeding and waste treatment via email in business day valid
DB15/T 3405.2-2024 Technical regulations for earthworm breeding and pollution control and soil improvement――Part 2：General specification for organic fertilizer production from earthworm manure via email in business day valid
DB15/T 3405.3-2024 Technical regulations for earthworm breeding and pollution control and soil improvement――Part 3：Technical specifications for improving saline alkali soil with earthworm manure organic fertilizer via email in business day valid
DB15/T 3406-2024 Technological specification under quality control for rice in Zhalaite county via email in business day valid
DB15/T 3407-2024 Standardized cultivation techniqere and quality control of Horqin yellow maize via email in business day valid
DB15/T 3429-2024 Code of extraction and antioxidant activity determination of aqueous extract of Artemisa ordosica krasch via email in business day valid
DB15/T 3434-2024 Code of practice for vegetation restoration in wind erosion area of sandy meadow steppe via email in business day valid
DB15/T 3436-2024 Technical code of practice for cultivating of tigernut (Cyperus esculentus L.) in Xiliao River Basin via email in business day valid
DB15/T 3445.1-2024 Technical code of practice for soybean-maize strip intercropping Part 1:South Greater Khingan via email in business day valid
DB15/T 3445.2-2024 Technical code of practice for soybean-maize strip intercropping Part 2：West Liaohe Plain lrrigation Area via email in business day valid
DB15/T 3445.3-2024 Technical code of practice for soybean-maize strip intercropping Part3：Yanshan hilly Area via email in business day valid
DB15/T 3445.4-2024 Technical code of practice for soybean-maize strip intercropping Part 4：Foot area of Yin Mountian via email in business day valid
DB15/T 3445.5-2024 Technical code of practice for soybean-maize strip intercropping Part 5：Turmot irrigation area via email in business day valid
DB15/T 3445.6-2024 Technical code of practice for soybean-maize strip intercropping Pare 6：Hetao irrigation area via email in business day valid
DB15/T 3450-2024 Code of practice for identification of Cyperus esculentus germplasm resources, varieties and purity by SNP marker method via email in business day valid
DB15/T 3451-2024 Technical code of practice for identification of pseudomonas spp. isolated from rhizosphere soil of Cyperus esculentus via email in business day valid
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