fbpx
Print this page
Thursday, 19 July 2012 11:53

Crunch number to plan crops

Written by 

GET THE calculator out and don’t leave it to guesswork when planning winter feed crops for next year.

That was a key message to come out of a Beef + Lamb New Zealand field day on Waiouru Station earlier this month (see p23).

“Sometimes farmers will say I’m going to sow 10has of crop and the stock class is then going to have to fit that,” explained PGG Wrightson Seeds’ specialist Charlotte Westwood.

“Instead, they should be saying I have 2000 ewes to winter, therefore I have demand for X amount of dry matter per head per day over a given period.

“It’s about the need to plan: how much area you need to grow; and how to grow the best yielding crop,” she stressed.

Westwood’s other key message is, having grown a crop, accurately determine the amount of feed using quadrant samples tested for drymatter.

There’s no point “eyeballing” crops to determine yield because few, if any, people can do it accurately.

“There are book values out there for the crops, but they are unreliable, especially for kale because it’s quite variable with dry matter percentage… there can up to a 2 or 3 % dry matter difference.”

If the book value percentage is higher than actual drymatter, and farmers are unaware of this, they’ll end up underfeeding stock, she warns.

“You must send a sample away to do a dry matter assessment. And while sending it away have it nitrate tested.”

Crops are a good option in areas where pasture growing seasons are limited by climate but yields do need to be high, says Westwood.

Where cold winters limit pasture growth, beside brassicas providing a weather-proof bulk of feed to carry stock through, they also have a lower minimum temperature for growth, so will grow a little when the pasture has long since stopped.

The other benefit to factor in is growing a crop is a good start to a re-grassing programme.

More like this

Managing feed, nutrition of your herd

In New Zealand, every dairy farmer worth their salt knows just how important it is to look after the welfare of their animals. The health of the herd directly impacts profit margins, which, in turn, determines the viability and sustainability of the farm.

Winter-proof your farm

As we approach the winter months it’s important to be prepared for the challenges and uncertainties that come with unpredictable weather events.

National feed scheme launched for farmers

The Ministry for Primary Industries (MPI) and Federated Farmers have restarted the national Feed Coordination Service to help farmers recovering from Cyclone Gabrielle.

The worst is still to come

Driving from home base in the Horowhenua through Hawke’s Bay and up the East Coast, it’s pretty evident that feed for cows is in short supply and that ground is still wet.

Featured

National

NZ-EU FTA enters into force

Trade Minister Todd McClay says Kiwi exporters will be $100 million better off today as the NZ-EU Free Trade Agreement…

Machinery & Products

Factory clocks up 60 years

There can't be many heavy metal fans who haven’t heard of Basildon, situated about 40km east of London and originally…

PM opens new Power Farming facility

Morrinsville based Power Farming Group has launched a flagship New Zealand facility in partnership with global construction manufacturer JCB Construction.