New information following the change in COVID-19 alert levels.

Pasture and weeds

As part of the project to compare the performance of the conventional and organic dairy farmlets, the composition of the pastures within each farmlet was monitored over the duration of the trial. This mainly involved taking detailed measurements along set transects within 10 paddocks in each farmlet. The grass – clover - weed balance was determined every 6 months, and also the proportion of each weed species was recorded from within fixed quadrates at each time of assessment.  

This allowed changes in pasture and weed composition to be followed throughout the experiment, which changed quite dramatically whenever a pasture was replaced but otherwise remained fairly constant.  Measurements were also made of the mineral content of pasture components at times.


Mineral composition and nutritive value of common weeds.pdf (60 KB)

Weed cover unaffected after converting.pdf (612 KB)

nzpp_weed population dynamics.pdf (121 KB)

Conference papers

Effect of 10 years of organic dairy farming on weed populations.pdf (127 KB)

Industry articles

Keeping the worms at bay - NZDE article.pdf (3,347 KB)

Weeds no problem - NZDE article.pdf (214 KB)


Botanical comp of org and conv pasture.pdf (171 KB)

Contact us Mon - Fri 8:30am to 4:30pm 0800 MASSEY (+64 6 350 5701) TXT 5222 Web chat Staff Alumni News Māori @ Massey