The results secured on 13 cooperative soil experimental fields on the Grundy silt loam in Southern Iowa have shown that the Iowa System of Soil Management when put into, operation on that soil type, will definitely increase the yields of general farm crops.

Occasionally the Grundy silt loam is not adequately drained, especially on some of the broad, level to flat areas of the type, and tiling is the first treatment needed to make such areas satisfactorily productive.

Ordinary farm practice usually provides satisfactory cultivation, and this is especially important on this type because it stimulates the production of available plant food.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.