The Billilingra farm site is representative of Monaro grazing country covering about 80,000ha along the Cooma-Canberra corridor. This area is heavily infested with the noxious weed African Lovegrass which is having a devastating impact on the viability of local grazing properties. These soils have granite as parent material.
The use of ASM treatments and pasture management practices has exceeded expectations, particularly over this short time frame (just over two years). There has been a 50% reduction in African Lovegrass populations, replaced by sub clover and native legumes from the soil seed bank. Beneficial changes in pasture composition have been matched by improvements in soil quality. Organic matter has increased by 64% with a five-fold increase in available phosphorous. Total nitrogen has increased by 50% and sulphur has more than doubled to reach acceptable levels. Calcium, zinc, boron and nutrient availability have increased but are still below ideal levels.
This Case Study was jointly funded by ASM and the NSW Environment Protection Authority (EPA). NSW EPA provided financial support under their Organics Market Development Program to demonstrate the use of recycled organics on farms in NSW.
The Snowy Monaro Regional Council is gratefully acknowledged for the supply of high quality compost used in the formulation of treatments for this case study.
Property Size: 2,000ha
Location: Bredbo, NSW
Aim: Weed control (African Lovegrass)
Results: There has been a 50% reduction in African Lovegrass populations, replaced by sub clover and native legumes from the soil seed bank.