Weekly Diary of Robotic Grazing Farm – 30th August (week 36)
- Growth 75kg DM/ha (26.1)
- AFC 667kg DM/ha (463)
- Cover/cow 259kg DM (162)
- Demand/ha 33.5kg DM/ha (37.2)
- MS/cow 1.82kg (1.83)
- Fat 4.61% (4.41)
- Protein 3.61% (3.52)
*previous weeks figures in brackets
Rotation length is extended to 31days now; it needs to be around 35 days by mid-September. Growth over the last week was 75kg DM/ha; A grew 90kg (AFC 616), B grew 78kg (AFC 583) and C grew 58kg (AFC 881). The rainfall of 38mm resulted in the high growth rates. We will continue feeding 2 bales of silage until Wednesday but then we will cut out the bale in the B paddocks. The cows will be grazing B2 which has a cover of 1200kg; we need the cows to graze out tight and to move through the paddocks quicker before grass covers builds up too quickly. The bale of silage will be kept in the A paddocks until the next farm walk at least, to slow down the rotation and allow AFC to build up.
The second half of the B paddocks from B5 to B14 received 23 units of N last week. The whole farm will get a bag of CAN before the close off date. The paddocks for reseed (B1, C1, C7, C10) will be reseeded this week. The mix we are using includes 3.5kg AberGain (T), 3kg Kintyre (T), 2.25kg Drumbo (D) and 2.25kg AberChoice (D) with 0.5kg of Aberherald clover. We have made up the mix to include 60% tetraploids as the farm is prone to soil moisture deficits and tetraploids are more drought tolerant than diploids.
Jordan Molloy – Grazing Consultant, Grasstec @Jordanmolloy22
“I teach farmers how to measure grass and the discipline needed to do weekly farm walks. I show them how to input their data onto Agrinet and how to understand the grass wedge. Each week presents a different scenario on the farm so it’s crucial that the farmer can interpret the data in order to make informed decisions. Grasstec consultants are available in Ireland and the UK.”