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soil and water conservation farming measures
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soil and water conservation farming measures
Encyclopedia
工学
水土保持农业耕作措施
释
soil and water conservation farming measures
水土保持农业耕作措施
在有水蚀和风蚀的农田中,采用增加地面糙率、改变地形、增加植物被覆与地面覆盖、增强土壤抗蚀力等方法,达到蓄水保土、改良土壤,提高农业产量,改善农产品质量的水土保持措施。又称水土保持耕作措施。
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standard scheme
standard score
standard screen motion picture
standard script
standard section
standard section flow measurement
Standards editor
standard sequence
standard serum
standard set
standard setting
Standards for Content Development of Museum Exhibitions
standards for environmental reference material
standards for food for special dietary uses
standards for grid
standards for hot water quality of food factories
Standards for Installing and Deinstalling Museum Exhibitions
standards for reporting of diagnostic accuracy, STARD
Standards for the Examination and Publication of Drug Advertisements
Standards for the Museum Grading Evaluation
standard sieve
standard simplex
standard single sampling plan by counting
standard siren
standard skew tableau
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