Crops and Forage
RPR’s rocky road
Not so long ago RPR was seen as the new fertiliser saviour, but science and experience has shown it to be less of a success than first predicted and promoted. By Dr Doug Edmeades.
Giving cultivar confidence
Independently run cereal performance trials have given arable growers confidence that the cultivars they are selecting have been tested in commercial conditions and their performance rigorously analysed.
Realising catch crops
With the right timing and a bit of patience, catch crops can reward growers with high-yielding supplementary feed crops that can generate gross margins of more than $1000/ha. By Sandra Taylor.
How to achieve top maize yields
A leading United States crop scientist told delegates at February’s FAR conference in Hamilton that maize growers need to have the basic requirements of soil structure, drainage, season-long weed control and foliar disease protection right if they are to chase high yields.
Fertiliser prices – what to do?
Look for the sweet spot when buying fertiliser, soil scientist Dr Doug Edmeades says.
Clover and ryegrass best mix
PhD research from Lincoln University has found the best pasture mixes, Joanna Grigg writes.
Digging deep for soil quality
A farming operation relies on good soil so it pays for farmers to understand it, Lynda Gray writes.
All-grass wintering revisited
Fifty years ago Southland farmers were into all-grass wintering. Now there is interest again in more use of grass and less of crop, Ken Geenty writes.
Less crop, not all-grass easier
Graham Butcher discusses the pros and cons for cutting back on winter forage crops with grass.
Seeking optimum fertility
A poor-performing paddock is the result of low soil fertility, not age of the pasture, Dr Robert McBride writes.