Spring is in sight and its time to wake up your garden. Seasoned home
gardeners most likely have already completed the first step in garden
preparation — the soil test. Your soil test results will give
you a baseline from which to make decisions about what each plot requires
and in what quantities.
Stop by your local extension office to obtain the brown cardboard boxes
that are required to transport your soil samples. Get several of these
boxes so you can take samples from various areas of your garden. Last
year I sampled soil from my blueberry bushes, raspberry patch, flower
garden and established vegetable plots. And thank your lucky stars that
you live in North Carolina because it is one of only two states that
offers soil testing to the home gardener at no charge. It takes approximately
8 weeks to receive your results in the mail, so if you want them to
arrive in a timely manner, you best turn in your soil samples sometime
in October or November when the demand is low. A soil test is required
every year as the vegetables you grow in your garden will remove from
the soil the minerals and nutrients needed to produce healthy and nutritious
plants.
Typically, soil test results have focused on the NPK (nitrogen, phosphorous,
and potassium) that reside in your soil. These numbers are represented
as a high number on most chemical fertilizer bags (10- 10- 10 or 18-18-18).
These high numbers represent salt-based synthetic or chemical fertilizers.
The higher the number the faster the release of NPK. The organic gardening
practitioner would use those carbon based inputs with lower numbers
like 5-5-4. These lower numbers indicate a slow release of elements
into the soil just like nature would provide. Other things nature would
provide are leaves, manures, compost and various organic inputs. These
days less and less emphasis is being placed on NPK and more and more
on the minerals and microbes that exist in our soils. Defining organic
when referring to fertilizers might be better accomplished by adding
the word natural. Raw ingredients used to make natural fertilizers are
inherently rich in trace nutrients. These are the key ingredients along
with that rich and vital organic matter that produces healthy vibrant
soil that, in turn, will provide you with abundantly nutritious vegetables
and fruits.
So what exactly does it mean when someone says he grows using organic
practices? Simply put, the grower has set in place a well thought out
soil-building program using organic inputs; practices crop rotation
each year and uses organic and mechanical methods to control insects
and disease. Another way to say it, the organic grower uses no chemical
fertilizers, pesticides, fungicides or herbicides. Although chemical
inputs serve to bring about a quick result, at the same time they reduce
the microbial matter in the soil to zero and eventually seep into the
water table. Although that ear of corn looks perfect, there are reports
which indicate that vegetables produced on chemically laden soil render
crops deficient in minerals and nutrients. Makes sense.
If you havent gotten your soil test boxes into the Extension Office
yet, youre late! Take the time this week to begin your spring
soil preparations, remove debris from your beds and start your next
compost pile.
See you in the garden!
(Kathleen Lamont is president of the Mountains Chapter of Carolina
Farm Stewardship Association as well as a seasoned speaker on organic
gardening. She can be reached at garden_girrl@yahoo.
com)