Soil Testing Services
Nutrient balance is key
There are 16 nutrient elements required to grow all plants and crops but soils vary in their
ability to provide the correct balance of nutrients for a number of reasons including soil type,
environment, crop removal, and application of soil amendments including manure, compost, commercial fertilizer or crop residues.
Nutrient Essential For Plant Growth
Nutrients From Air And Water
Nutrients From Soil, Limestone, Commercial Fertilizer or Organic Amendments
Primary Nutrients a)
Secondary Nutrients b)
Carbon - C
Hydrogen - H
Oxygen - O
Nitrogen - N
Phosphorus - P
Potassium - K
Calcium - Ca
Magnesium - Mg
Sulfur - S
Boron - B
Chlorine - Cl
Copper - Cu
Iron - Fe
Molybdenum - Mo
Zinc - Zn
a) Utilized in the largest amount by plants.
b) Required in smaller amounts than primary nutrients.
c) Required in even smaller amounts than secondary nutrients.
Managing the nutrient content of the soil is one key to optimum performance of any plant whether it is your lawn
or a commercial crop like alfalfa, corn, apples, turf or pumpkins. Over or under application of these essential
plant nutrients is very costly in terms of lost yield or quality and the environmental impact from over application
or misapplication of plant nutrients can have significant and costly consequences as well. For that reason, soil
testing should be the foundation of any crop management plan whether it is for the home gardener or the commercial farm operation.
Soil testing tells us if lime or fertilizer is needed
An agronomic soil test extracts a portion of the plant available nutrients contained in a soil sample and results are then
classified as low, medium, high or very high based on expected crop response to added crop nutrients, Crops grown on soils
that test high to very high for a specific nutrient are not likely to respond with a yield increase that nutrient is applied
to the soil. However, soils testing low or medium for that nutrient are likely to show improved yield and quality if that
nutrient is applied (provided other nutrients are present in adequate amounts).
Soil testing is a required component of nutrient management plans for many commercial farming operations as well as for purchase
of P containing fertilizers for use on established lawns in some Northeast states.
State specific Agro-One packages are targeted to customer needs
Due to the diversity of soils in North America, there are many different soil tests used to characterize the nutrient content of
soils. Each test was developed based on the chemistry of the soils and crop response in the region where the test will be used.
Agro-One offers soil test packages and nutrient guidelines to meet the diverse needs of commercial crop producers and home
owners here in the Northeast. * New York customers also have the option of an Agro-One analysis with Cornell recommendations.
* Maryland, New Hampshire, New York, Pennsylvania, and Vermont.