91免费国产高清在线,国产美女精品AⅤ在线老女人,亚洲色AV天天天天天天,杨幂Av一区二区三区,两个人免费视频大全毛片,精品视频在线观看一区二区三区,国产真实乱XXXⅩ视频,亚洲性69影视,高潮社区51视频在线观看,91久国产在线观看

  • <tfoot id="sisce"></tfoot>
    <strike id="sisce"><input id="sisce"></input></strike>
  • 歡迎來到岫巖滿族自治縣佰匯達(dá)礦產(chǎn)品加工有限公司官網(wǎng)!
    專注生產(chǎn)及加工白云石、白云石砂、雪花白等產(chǎn)品LABORATORY OVERALL ENGINEERING SOLUTIONS EXPERTS
    National hotline:13898004999
    Your location: HOME >INFORMATION >common problem

    INFORMATION

    推薦資訊

    Hotline

    13898004999

    Application of dolomite powder in aquaculture and agriculture?

    作者: 點擊:2093 發(fā)布時間:2020-07-23

    The progress of technology makes the use of snow white products more and more widely. Dolomite powder can be used to improve the dust flying in coal mines and prevent and delay the explosion of coal dust. It is used as a filter material for water treatment, especially for neutralization from drinking water to industrial water, swimming pool water, etc., and for removing iron, manganese and silicate.

    Calcium and magnesium are essential nutrients in animals. Adding appropriate powder to animal and poultry feed is very beneficial to promoting animal growth and reducing disease. However, the fineness of the powder and the content of harmful elements must be strictly controlled.

    Acidity used in agriculture and soil. Because urea and other fertilizers are easy to acid the soil for a long time, it can be added directly to urea to keep the soil at the appropriate pH, which usually increases crop yield by 15-40 times. When pH is 6.0 to 6.2, the efficacy of herbicide can be improved.

    It can also compensate for the loss of magnesium content in soil. The powder from 1.2 to 0.8um can flow freely. It can be used as fertilizer filler to improve the conditions of plant utilization of soil nutrients, reduce the caking and adjust the fertilizer ratio.

    In recent years, with the development of magnesium smelting industry, more and more tailings occupy farmland and increase environmental load. How to make full use of these resources has found a better way out, that is, the tailings after smelting magnesium metal with dolomite powder are used to produce magnesium oxide compound fertilizer. In addition, it is reported that it can be used instead of serpentine to produce calcium magnesium phosphate fertilizer.



    Record No.: liaoicp Bei 13061297-6

    Keywords:dolomite, dolomite sand, snowflake white

    Technical support: qingjiao network


    亚洲av国产精品色a变脸| 国产又黄又大又粗视频| 无码人妻系列不卡免费视频| 农村国产毛片一区二区三区女| 好看的日韩精品视频在线 | 国产黄三级三·级三级| 久久熟女乱一区二区三区四区| 国产自拍精品在线免费观看| 亚洲av无码av在线播放| 亚洲另类激情综合偷自拍图| 东京热加勒比日韩精品| 中文字幕亚洲精品在线| 大地资源中文第3页| 国产精品成人va| 亚洲老女人区一区二视频| 91精品人妻一区二区三区久久久 | 亚洲成av人无码免费观看| 人妻精品一区二区三区蜜桃| 亚洲无线码一区二区三区| 国产剧情国产精品一区| 一区二区三区在线观看日本视频| 中文字幕有码人妻在线| 日本老熟妇乱| 久久久国产精品樱花网站| 色佬易精品视频免费在线观看| www夜插内射视频网站| 麻豆亚洲av永久无码精品久久| 高清高速无码一区二区| 国产午夜免费啪视频观看| 少妇被粗大的猛烈进出免费视频| 国产精品欧美日韩在线一区| 色婷婷av一区二区三区不卡| 国产 一二三四五六| 国产又色又爽无遮挡免费| 久久99久久99精品观看| 日本精品久久不卡一区二区| 凹凸在线无码免费视频| 老熟妇Av| 婷婷开心五月亚洲综合| 鲁丝片一区二区三区免费| 久久精品免费一区二区喷潮|