Introduction: 
Diatomite (Celite, Diatomaceous earth) (is a friable light-colored sedimentary rock that is mainly composed of the siliceous skeletal remains of diatoms. It is a very porous rock with a fine particle size and a low specific gravity. These properties make it useful as a filter media, an absorbent, and as a lightweight filler for rubber, paint, and plastics.
 
Usage & Advantages: 
Natural freshwater diatomaceous earth is used in agriculture for grain storage as an anticaking agent, as well as an insecticide. It is approved by the Food and Drug Administration as a feed additive to prevent caking.
It is also used as a growing mediumin potted plants, particularly as bonsai soil. Bonsai enthusiasts use it as a soil additive or pot a bonsai tree in 100% diatomaceous earth. In vegetable gardening it is sometimes used as a soil conditioner, because like perlite, vermiculite, and expanded clay, it retains water and nutrients, while draining fast and freely, allowing high oxygen circulation within the growing medium.
 
specification:
1-3mm; 3-6mm 
 
Notice: 
****the plant with stone is only for showing the paving stone, not for sale**** 
Please read the questions and answers for this listing. 

***Buyer must make an appointment with us before coming. 

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硅藻土在园艺中的作用主要表现在：土壤改良剂：PH值中性、无毒，悬浮性能好，吸附性能强，在土壤中能起到保湿、疏松土质、延长药效肥效时间，助长农作物生长效果。
 
硅藻土能够杀虫，原因在于其粉末的每一细微颗粒都带有非常锐利的边缘，与害虫接触时，可刺透害虫体表，甚至进入害虫体内，不仅能引起害虫呼吸、消化、生殖、运动等系统出现紊乱，而且能吸收3～4倍于自身重量的水分，致使害虫体液锐减，在失去10％以上的体液时死亡。硅藻土也会吸收昆虫身体的外层蜡质，从而使昆虫脱水而死。硅藻土以机械方式杀虫，而非化学方式，所以害虫永远不会对其产生抗药性，更重要的是硅藻土对高等动物（包括人）无毒无害，所以也可以作为宠物杀虫剂。