Luster Leaf Rapitest Soil Thermometer tells you when to plant
This is a small item, but a powerful one. You know if you have ever planted peas or corn and had little germination that seed can rot in the ground if the soil temperature is not right. It should be forty degrees for peas and although corn can germinate at fifty degrees, it does not necessarily prosper at that temperature.
Roots are slow to develop at low end temperature and growth of the secondary root system is slowed. To be absorbed by plants, the nutrients must either move to the root via diffusion in water or the root must grow to and intercept the nutrient. At low end temperatures where the seed will germinate, but not proper, it may be better to wait until the soild warms still further and the new plant can prosper.
At Luster Leaf Rapitest Soil Thermometer #1618
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Posted by Marilyn Renaker at March 1, 2010 8:50 AM