COLUMNS
feature
90 years of Sask. farmland prices
2017 rebate roundup
Les Henry speculates on what's coming next 20
How can you max out your rebates this year? Is that your goal? 16
Volume 43 · number 02 January 24, 2017 · $4.25 Practical production tips for the prairie farmer www.grainews.ca
By Lisa Guenther
Can you skip inoculant? Pulse production
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photo: Lisa Guenther
Pulse type and field conditions determine how much inoculant your pulse crop needs
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noculating, or even double inoculating, is routine for pulse growers. But is it always necessary, or are their situations where farmers can save a few bucks without affecting yields? The answer, it seems, comes down to crop type and field history. Peas, fababeans and lentils all form symbiotic relationships with the same rhizobium species, and that species is native to Prairie soils. That means there’s a chance pea and fababeans will be inoculated by the native rhizobium, says Laryssa Grenkow, research manager for the Manitoba Pulse and Soybean Growers. “That being said, supplemental inoculation often increases nodulation and nitrogen fixation and yield,” says Grenkow. Research out of Saskatchewan shows that pea growers who inoculate will see a yield increase about half the time, Grenkow says. Fields that haven’t seen peas have a higher chance of seeing a yield benefit, she adds. “It’s hard to predict, especially when rhizobium are native to the soil. But the inoculant strains that are found in inoculant might be better at nitrogen fixation than some of the native rhizobium.” Grenkow says it’s “a good bet” to inoculate field peas every year, given the relatively small cost of inoculation. Grenkow is more hesitant to recommend double inoculation in field peas, but she doesn’t rule it out entirely. “There might be some extremely stressful soil conditions, especially when you’re seeding peas really early in the growing season that might reduce the viability of your See INOCULANT on Page 4
PLU S
Got winter blues? Try sprouting some greens Amy Jo Ehman touts the benefits of sprouts. Delicious, nutricious, and they only take days to grow 36
CONTENTS 3 | COLUMNS 19 | CATTLEMAN’S CORNER 34