[{"data":1,"prerenderedAt":24},["ShallowReactive",2],{"news-78190d41d8d54958a52bbf859e726c7a":3},{"author":4,"classification":5,"collectionnum":6,"content":7,"createTime":8,"effectivetime":9,"extra":5,"grantor":10,"granttime":9,"homepageimages":5,"id":11,"images":12,"images1":5,"images2":5,"isimmediate":13,"ispush":14,"isread":15,"link":5,"note":5,"orgId":5,"pushtime":9,"pushtype":14,"readnum":16,"sharenum":6,"showorder":17,"showwebsite":14,"source":18,"sourcelink":5,"status":13,"summary":19,"system":5,"thumbnail":20,"thumbnail1":5,"thumbnail2":5,"timer":21,"title":22,"types":23,"updateTime":9},"440cc6a034a6468bb0b69e3928ae4b1b","",0,"\u003Cp>\u003Cstrong>一、稀释方法\u003C/strong>\u003C/p>\u003Cp style=\"text-indent: 2em;\">百分比浓度是指100份药肥液或药肥粉中含药、肥的份数，用“%”表示。如2%的尿素，表示在100公斤尿素溶液中有2公斤尿素，98公斤水，30斤水约加\u003Cbr/>\u003C/p>\u003Cp>\u003Cstrong>二、倍数浓度\u003C/strong>\u003C/p>\u003Cp style=\"text-indent: 2em;\">指1份农药的加水倍数，常用重量来表示。如：配制700倍的50%多菌灵，是用1份50%的多菌灵，加700份水搅拌而成。\u003Cbr/>\u003C/p>\u003Cp>\u003Cstrong>三、换算方法\u003C/strong>\u003C/p>\u003Cp style=\"text-indent: 2em;\">百分比浓度换算成ppm浓度的换算公式是：1份农药的加水份数=农药的百分数×1000000/欲配制的ppm数。例如：将含量为40%的乙稀利配成2000ppm溶液1公斤，乙稀利的加水量为40%×1000000/2000=200份。\u003Cbr/>\u003C/p>\u003Cp>\u003Cstrong>四、换算成倍数浓度\u003C/strong>\u003C/p>\u003Cp style=\"text-indent: 2em;\">用百分数除以ppm数，将小数点向后移4位，即得出所稀释倍数。例如：40%的乙烯利1000ppm，换算成倍数浓度时，用40÷1000=0.04，小数点向后移4位。即得400倍。\u003Cbr/>\u003C/p>\u003Cp>\u003Cstrong>五、兑水方法\u003C/strong>\u003C/p>\u003Cp style=\"text-indent: 2em;\">几种农药混用时，不是每加一种药都加1次水，而是各种药都用同1份水来计算浓度。例如：配制500倍的尿素加1000倍的甲基托布津，是用2份尿素加1份甲基托布津加1000份水。另外，兑水时，应先配成母液，即先用少量温水将药液化开，再加水至所需浓度，充分溶解，以提高药效，防止药害。\u003Cbr/>\u003C/p>","2016-06-22 09:01:51","2016-06-27 08:47:00","7e2681613fe24e929db7446d08b47287","78190d41d8d54958a52bbf859e726c7a","https://api-tx2.hedadata.com/files/news/20160622/37e1bf6894574b46aa4cd823e054fcce.jpg","2","1","0",1012,99," 中国新型肥料网","在使用农药产品时，对农药浓度的大小掌握与配置，关系这农药喷洒的实际效果与作用，因此稀释农药就成了使用农药时的关键一环，那么怎样正确稀释农药呢？\n","\\files\\news\\20160622\\37e1bf6894574b46aa4cd823e054fcce-thumbnail.jpg","2000-01-01 00:00:00","农人必备，农药肥料稀释换算方法","news",1790158174909]