formation bulk density 中文意思是什麼

formation bulk density 解釋
地層體積密度
  • formation : n. 1. 構成,形成;設立;編制。2. 組織,構造;形態;形成物,構造物;【軍事】編隊,隊形;兵團。3. 【地質學;地理學】層;組; 【生物學】社區;(植物)群系。adj. -al
  • bulk : n 1 體積,容積,大小。2 巨大;龐然大物;大塊;大批,大量。3 貨艙;船貨;散裝貨物。4 〈the bulk〉...
  • density : n. 1. 稠密;濃厚。2. 【物理學】濃度;密度;比重。3. 愚鈍,昏庸。
  1. Ploughing deeper and corn residues might promote formation of soil aggregated structure, decrease soil bulk density, relax solum, decrease soil porosity, raise soil permeability, improve soil structure and holding - water capability, create better soil biology condition for growth of crop, and coordinate water, fertilizer, air and heat etc. to prevent the fertility deterioration of the corn belt phaeozem and ameliorate soil, it is need to reform tillage and fertilizer application for the corn belt phaeozem in the central part of jilin

    針對吉林玉米帶黑土土壤退化現象,從黑土玉米的耕作制和施肥制的改革入手,並結合農村現有機械和技術水平,採用玉米「輕主重輔」三三耕作制和玉米「一穩二減三補」施肥技術,提出吉林玉米帶黑土土壤調控技術體系。
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