Crops

CROP SCENE INVESTIGATION – 28 SOLVED: The curious case of Quinn’s corn

by BERNARD TOBIN

The variation in emergence in Quinn’s corn was caused by worn double disc openers on his corn planter, which created a W-shaped seed trench rather than a V-shaped one. This produced great variation in seed depth which led to the uneven emergence in the later-planted fields.

Dekalb agronomist Sean Cochrane explains that when he inspected Quinn’s planter, he used his tape measure to determine that the discs had considerable wear and were one to 1.5 inches smaller than the recommended diameter for discs suitable for the planter.

CROP SCENE INVESTIGATION – 29: The curious case of row unit number eight

by BERNARD TOBIN

In late June, when Pioneer Hi-Bred agronomist Scott Fife walked across Bill’s 20-acre corn field in Dundas County, one in every 12 rows was significantly stunted. While all the corn had reached the eight-leaf stage, the stunted rows were much shorter and yellow in colour – very different from 
the dark green, healthy-looking plants in the other rows.

CROP SCENE INVESTIGATION – 27: What happened to Larry’s wheat? – Solved


by BERNARD TOBIN


The poor-performing wheat in Larry’s field suffered from nutrient deficiency after he mistakenly adjusted the fertilizer rate rather than the seeding rate.

Agronomist Paul Sullivan explains that Larry had intended to increase the seeding rate on his drill as he finished up planting, but in his haste he somehow managed to change the fertilizer setting, reducing the flow of in-furrow starter fertilizer.

CROP SCENE INVESTIGATION – 28: 
The curious case of Quinn’s corn

Why did the emergence get progressively worse as he moved 
from the first field planted to the later ones?

by BERNARD TOBIN

In spring 2009, many growers struggled to get their corn planted in rainy, wet conditions. In early June, after the crop was finally planted, Dekalb field agronomist Sean Cochrane got a call from Quinn, a Hastings County grower, asking if Cochrane could help him make sense of the erratic emergence that he had observed in his fields.

CROP SCENE INVESTIGATION – 27: What happened to Larry’s wheat?


by BERNARD TOBIN

Agronomist and certified crop advisor Paul Sullivan spends a lot of time walking fields. In late June, you can find him out in wheat fields trying to determine the best application timing for fungicides. He knows what he’s looking for – a field that has even heading with 75 per cent of the heads on the main stem fully emerged.

Crops: Urban compost shows promising results for crop yields

The material from the Orgaworld plant in London has twice the organic material of mushroom compost, but the downside is that the salt content is high

by MIKE MULHERN

Some London area farmers are turning to composted kitchen and yard waste to replace organic matter in their fields.

Dorchester area farmer John Killins and his partner Travis Woolings distribute composted material produced at the London-based Orgaworld plant and they also use it on their fields.

Crops: It pays to use soybean seed treatments for early-season aphid protection

Using an insecticide seed treatment like CruiserMaxx Beans can bring a payback of more than one to 1.5 bushels an acre. In stressful years, it could be a lifesaver

by SCOTT FIFE

After more than 105 trials in the last five years, we’re convinced that using an insecticide seed treatment, like CruiserMaxx Beans, in soybeans pays off. And, in a particularly tough weather year with heavy aphid pressure, seed treatments could turn into an early-season lifesaver.

CROP SCENE INVESTIGATION Solved – 24: Why has Stan’s wheat stalled?

by BERNARD TOBIN

Stan’s wheat field failed to meet his expectations because he didn't clean out the sprayer tank after applying his weed control.

While the tank only contained 90 to 115 litres (20 to 25 gallons) of the Pardner/MCPA 500/Tilt herbicide and fungicide application, this leftover spray packed enough wallop to injure Stan’s wheat and reduce yields by 50 to 75 per cent.

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