Soil Test For pH for New Alfalfa

Aug 19, 2014

By Bruce Anderson

Slow-growing alfalfa seedlings often can be an indication of low pH soil.

If you're planning to establish alfalfa next spring, take time this fall to test the soil pH and add lime if indicated.

Alfalfa grows best in soils with a neutral pH of about 7. When soils are acid, with a pH of 6.2 or lower, alfalfa plants do not grow as well. At a low pH, alfalfa roots are less able to absorb nutrients from soil. Also, the nodules on alfalfa roots that convert nitrogen from the air into nitrogen the plants can use will have difficulty forming and working effectively in acid soils.

Most sandy, low organic matter soils as well as heavier ground that has been tilled and fertilized with nitrogen for many years have become acidic and need a lime application.

It takes time for lime to really neutralize much acidity so I recommend applying lime at least four months before planting alfalfa. And while there is a cost, applying lime now is much less costly then having a stand failure or several years of low alfalfa yields.

Source:unl.edu

Video: A chain harrow is a game changer

Utilizing a rotational grazing method on our farmstead with our sheep helps to let the pasture/paddocks rest. We also just invested in a chain harrow to allow us to drag the paddocks our sheep just left to break up and spread their manure around, dethatch thicker grass areas, and to rough up bare dirt areas to all for a better seed to soil contact if we overseed that paddock. This was our first time really using the chain harrow besides initially testing it out. We are very impressed with the work it did and how and area that was majority dirt, could be roughed up before reseeding.

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