My Final visit in New Zealand was at Lincoln Agritech with
Armin Werner and Jess Roberts. Lincoln agritech is a subsidiary of Lincoln
University, and is involved with developing products with industry. There is
currently a focus on how NZ agriculture affects the environment and Agritech
are looking at how precision agriculture can help to quantify these effects and
minimize them.
Variable rate irrigation monitoring using microwave sensors
on irrigators to measure the water availability in real time without disturbing
the crop is one example. VRI application maps are built using soil type data
and measuring soil moisture with moisture probes, but it is not known how much
water is actually in the plant. The microwave sensors can collect this data in
real time and lead to better informed management decisions.
Agritech are also researching variable rate seeding for maize,
as the crop is growing in popularity due to demand from the dairy industry. By
using soil zones from EM maps, yield potential can be estimated and plant
populations manipulated to match that potential. If this is coupled to the vast
research being done in corn (maize) production in the USA, and the improvements
in planter control and monitoring, there are many ways precision agriculture
can improve maize production.
Jess Roberts’s research is based in Australia and is around
monitoring cattle movements and pasture management to see if the cattle can
tell the farmer when they are starting to get hungry. By logging their movement
using GPS collars, and recording the feed availability using biomass sensors,
it was possible to see how they dispersed and how far they travelled as feed
levels declined. Also in the extreme environment of remote cattle stations, can
this information be used to indicate if an animal is so hungry that it will
just stop grazing completely? This data could be used to prevent over grazing
of pastures and ultimately improve grass production.
As I travelled back to Christchurch I went past a tribute to past ploughmen of New Zealand which celebrated hosting the world ploughing championships, and recognised previous farmers efforts in breaking the Canterbury plains. It is always good to remember your past as you move forward.
After 2 weeks in New Zealand is very clear that the whole
agricultural sector is heavily supported by the dairy sector, but the dairy
sector is not isolated and very well integrated with other sectors. It is the
diversity and options available to New Zealand that is most compelling, that
along with the productivity levels being achieved are very inspiring.
Precision Agriculture is still in its infancy but the uptake
is growing. The wider adoption of VRI will lead to the biggest productivity and
profitability gains for farmers. Purely because the difference irrigation makes
is phenomenal and there is a growing demand for regulation and justification of
irrigation and its effects on the environment, which is the jewel in New
Zealand’s crown.
I had a wonderful time meeting new friends and visiting old
friends, and I thank everyone for their time and hospitality, which I hope to
be able return to any of them visiting the UK in the future.