In-Furrow Starters


NACHURS liquid starters have a neutral pH and are low in both salt index and impurities. These features of our liquid starters enable the product to be placed directly with the seed at planting time. Placement with the seed allows the available phosphorus to be taken up at the critical early stages of growth to maximize yield potential. 

NACHURS liquid starters contain 80% - 100% of their phosphates in the available orthophosphate form.  Orthophosphate is immediately available to the plant during the critical early stages of growth. Plants can only take up phosphorus in the orthophosphate form.

Why Use Starter Fertilizer?

In an independent survey, farmers from across the United States were asked why they utilized starter fertilizer as part of their crop production program. The most common responses were:

• Gives crop a faster start
• Plant is healthier
• Increases yield, better production
• Helps early plantings
• Gives nutrients to the roots, supplies secondary nutrients
• Best for our tillage situation

What is a true solution liquid fertilizer?
A true solution liquid fertilizer has the following characteristics:

• Will not settle out
• High solubility
• Each drop has the exact same ratio or percentage of nutrients
• Greater flexibility in mixing with other products

Plant Nutrient Requirements

Yield potential will vary from farm to farm across North America due to a variety of factors. The key is to provide a balanced fertility program that will allow you to achieve the total benefit from your crop production acres. In the early growth stages of the corn plant there is a definite need for a combination of Nitrogen, Phosphorus and Potassium to set the potential for maximum yields.

Plant Nutrient* Requirements for a 180bu/A Corn Crop
  1st 25 Days 2nd 25 Days
Nutrients % lbs/A % lbs/A
Nitrogen (N) 8 19  35 84
Phosphate (P2O5)       4 4 27 27
Potash (K2O) 9 22 44 104
*Nutrients taken up by corn in 25 day periods after emergence



Corn Ear Growth and Development

The total yield per acre comes down to the number of bushels produced. Bushels per acre are directly related to the number of ears and kernels per ear. Many farmers don’t realize how soon the corn plant actually establishes the ear and determines the number of kernel rows that an individual ear will have. 

Chronological Development of the Corn Ear
Approx. Plant
Growth Stage
Approx. Days
After Planting
(Days after Emergence)
Growth Event Importance to
Final Ear Weight
Planting 0 - 6
  • Root and shoot growth (cell division, expansion, differentiation)
  • Leaves initiated
V3 to V5 16-30
  • Ear shoots initiated
  • Leaf and ear shoot initiation complete
  • Tassel initiated in stem apex tip
  • Stem Apex is just under or at soil surface
  • Tillers are forming
  • Above ground height is 8 inches
  • Ear established
  • Number of rows of kernels determined
  • In normal Corn Belt hybrids there are 16, 18, or 20 rows of potential kernels per ear
Source: Agri-Growth, Inc.

Early fertility levels and nutrient concentration in the developing root zone play a determining factor in what the final yield will be at harvest time. Availability of those nutrients in the root zone is also an important consideration because nutrient availability is influenced by a variety of factors.


Precision Placement

As a seed germinates, it quickly uses up the sugars and starches in the seed and looks for additional sources of nutrients for early season growth. Availability of essential nutrients at this stage can have a major impact on achieving the genetic potential of the seed.

During the growing season, plant roots will come in contact with approximately 2% of the soil area. With this in mind we also must remember that the movement of Phosphorus and Potassium in the soil is limited. Phosphorus moves less than 1/10 of an inch once the plant is growing. The Potassium ion will only move through the soil solution about 1/4 of an inch by diffusion during the growing season.