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DB15/T 3396-2024 Technical code of practice for fertilization of maize-soybean rotation in mild saline-alkali land in Xiliaohe irrigation area via email in business day valid
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 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 3437-2024 Techncal code of practice for full film double vidge furrow sowing of millet in Qing shuihe region 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 3448-2024 Technical code of practice for soybean cultivation by shallow buried drip irrigation under no-tillage condition of corn stubble via email in business day valid
DB15/T 3449-2024 Technical code of practice for high yield and efficiency cultivation of mung bean by narrow-wide row spacing combine with shallow-buried drip irrigation in hilly region of Yanshan 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 3456-2024 Code of practice for spaced strip harvesting of Cyperus esculentus via email in business day valid
DB15/T 3474-2024 Technical regulation for soft-wood cutting of Padus virginiana(L)M.Roem. cv. ‘Canada Red’ via email in business day valid
DB15/T 3475-2024 Technical code of practice for directive fertilization planting techniques of tigernut (Cyperus esculentus L.) in desertified land via email in business day valid
DB15/T 3476-2024 Technical code of practice for rational close planting and machine harvesting of tigernut (Cyperus esculentus L.) via email in business day valid
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