The powder grinding mill --- thailand's sustainable agriculture solution
in the fertile plains of isaan in northeastern thailand farmers are constantly battling soil that is too acidic for optimal crop yields. the solution comes not in a bag of chemical fertilizer but from a local stone powder grinding mill. this mill a simple yet efficient raymond mill type processes local limestone at a rate of 3 tons per hour. it grinds the rock into a very fine powder with 80% passing through a 100 micron screen. this agricultural lime or aglime is the key to unlocking the regions agricultural potential.
the limestone is sourced from small nearby quarries and fed into the mill. the raymond mill with its rotating grinding ring and stationary rollers creates a fine powder through centrifugal force. the resulting 100 micron powder is highly reactive and when spread on the fields it quickly neutralizes soil acidity. this allows essential nutrients like nitrogen and phosphorus to become available to the plants.
farmers applying this local aglime have seen dramatic increases in yields of cassava rubber and sugar cane. the 3 tons per hour capacity is perfectly suited for a rural cooperative model where the mill serves dozens of smallholder farmers. it provides them with an affordable and effective way to improve their soil naturally reducing their dependence on expensive imported soil conditioners and fostering a more sustainable form of agriculture.
farmers applying this local aglime have seen dramatic increases in yields of cassava rubber and sugar cane. the 3 tons per hour capacity is perfectly suited for a rural cooperative model where the mill serves dozens of smallholder farmers. it provides them with an affordable and effective way to improve their soil naturally reducing their dependence on expensive imported soil conditioners and fostering a more sustainable form of agriculture.
