May Guelph Service Bulletin
RAPID SCISSOR-CUT EVALUATION
To assist in determining optimum cutting dates for forage crops, the Rapid Scissor Cut Evaluation assesses quality in 24 hours.
Multiple random sub-samples can be collected at approximate harvest height, and combined into one sample. Prompt shipment to the lab will allow immediate analysis by NIR, producing next day results.
EQUINE FORAGE ANALYSIS
For horse owners looking for a thorough test package to analyze their hay, we offer an Equine Complete testing package. When collecting samples, it is best to collect cores from multiple hay bales, so the sample is representative. If grab samples are collected, be sure that all parts of the hay represented, including leaves and stems. Pulling handfuls from bales usually results in stems only, with leaves left behind.
Equine Complete includes CP, SP, ADF, ADF-CP, NDF, NDF-CP, lignin, ash, fat, starch, simple sugars (ESC); all by NIR.
The wet chemistry analytes include DM, Ca, P, K, Mg, Na, Cu, Fe, Mn, Zn.
Calculated values are shown for SP, ADP, NDP, TDN, and DE.
UPDATING CLIENT CALIBRATIONS
For those that employ internal testing, it is important to maintain calibrations by analyzing a minimum of 10 samples by wet chemistry. We offer many wet chemistry packages that will fulfill the requirements of the parameters needing external validation. Please contact the lab for further guidance in choosing the correct package to maintain internal calibrations.
PRE-SIDE DRESS NITRATE TESTING
Spring conditions are well underway, and it is expected that corn planting will be completed by mid-May. However, applying the entire crop’s required nitrogen pre-plant can lead to losses that are uneconomical, and environmentally impactful.
Where the ability exists to split applications and apply N into a growing crop, a PSNT can assist with determining the appropriate rates. Where variability exists, due to soil type, organic matter levels, or topography, separate samples may allow for variable rate application. Management zones can be established based on yield maps, grid sampling maps, or bare-ground satellite imagery.
Book your custom PSNT sampling now to ensure prompt service at side dress time.
For more information, please contact: