ammoniation demonstrations justin w. waggoner, ph.d. k-state beef systems specialist garden city, ks
TRANSCRIPT
Application Rate
(Previous K-State studies) Anhydrous Application Rates
Item, % Dry Matter 0% 1.5% 3.0%
Straw, (Laytimi et al., 1984, KSU)Crude Protein 3.9 7.7 8.8IVDMD 47.2 57.3 56.7ADF 55.6 56.5 56.3DM Digestibility 45.6 53.8 52.7
CRP Hay (Clark County KS, 2011)Crude Protein 5.1 9.3 9.9TDN 44.4 46.2 48.0ADF 52.2 50.3 48.4
Objective
Demonstrate the process of ammoniating forages to producers
Evaluate the application of different application rates of anhydrous ammonia under field conditions– 1.5% of forage DM (30 lbs/ton)– 3.0% of forage DM (60 lbs/ton)
Locations
1. River Valley District- Robin Slattery2. Meadowlark District-Jody Holthaus3. Pottawatomie County-Austin Sexten4. Kingman County- Matt Clark5. Walnut Creek District-Jared Petersilie6. KSU Stocker Unit
Procedures
Bales were stacked in a 3,2 arrangement
Covered with 6 mil black plastic– Same plastic used at all sites
Forage samples were obtained – Prior to treatment– Approximately 14 days following anhydrous
application
Observations
Demonstrations were well attended at all sites 30-45 persons
Condensation under plastic at some sitesLack of an improvement in ADF/TDN – Some sites ADF increased, decreased TDN
content
Crude Protein 3.50 8.60 10.83ADF 51.38 52.33 52.10IVDMD
Laytimi et al., 1984Crude Protein 3.9 7.7 8.8ADF 55.6 56.5 56.3IVDMD 47.2 57.3 56.7
Application Rate
Anhydrous Application Rates
Item, % Dry Matter 0% 1.5% 3.0%
----In Progress---
Nutrient Values
Crude protein– Consider ½ the increase in CP available – 1.5% = 6.1 % CP– 3.0% = 7.2 % CP
Energy content– Brands currently (50% TDN, 0.43 Mcal/lb NEm)– Traditional equations from ADF may not fit– Based off of IVDMD data
Application Rate
Estimated Cost of Ammoniation/ton
Item 1.5% 3.0%Straw $60.00 $60.00Stacking and handling $2.00 $2.00Plastic ($236, 40 x 100, 6 mil) $6.75 $6.75Anhydrous Ammonia ($700/ton) $10.50 $21.00Total Cost $79.25 89.75Ammoniation cost less hay $19.25 $29.75
Kuhl, 1981 as cited in OSU Publication #PSS-2243
Justin W. Waggoner, Ph.D. [email protected]
Beef Systems SpecialistGarden City, KS620-275-9164