资讯

A basic test that measures soil pH, important soil nutrients, and organic matter costs $20 to $25. The labs also provide recommendations for lime and fertilizer if needed.” ...
Most pH test kits are simple to use, with easy-to-follow instructions. Generally, the steps involve mixing a soil sample with ... also allows for less synthetic product usage." ...
Standard soil test kits may be purchased from county offices of Penn State Extension for $10, or you can print soil submission forms (pdf format) from Penn State Agricultural Analytical Services ...
The UD Soil Testing Program provides a variety of soil testing and educational support to farmers, homeowners and others engaged in soil management and land use. The program is offered as a public ...