Research Brief: Improving highbush blueberry nitrogen management with nitrification inhibitors

🫐 Can we boost blueberry nitrogen uptake? 

A recent study in BC tested nitrification inhibitors, which help slow down the process of turning ammonium (the type of nitrogen blueberries like) into nitrate. The results showed that while the inhibitor did slow that process, the effect on blueberry yield and soil nitrogen levels changed from year to year.

Research Brief: Economic and environmental benefits of reducing nitrogen fertilization in potato fields

🥔 This study evaluated the economic and environmental tradeoffs of three nitrogen application rates (0, 90, and 120 kg N per hectare) in potato production.

Research in BC’s Fraser Valley examined the economic and environmental trade-offs of different nitrogen fertilization rates in potato fields. Researchers found that high application rates (120 kg N/ha) were not worth the costs – yields and revenue did not increase enough to justify the added input, and excess nitrogen led to higher nitrous oxide emissions.

Research Brief: Fighting grapevine root diseases with brassica cover crops

🍇 Fungal diseases and nematodes can pose significant challenges to wine grape growers in BC. 

To address this challenge, researchers in Kelowna evaluated the role cover crops can play in  fighting fungal diseases and parasitic nematodes in vineyards.  They tested out four brassica species: white mustard, tillage radish, shepherd’s purse, and rockcress. Some brassica species have a special ability to suppress the growth of bacteria, fungi, nematodes, weeds, and insect pests through chemicals that they naturally produce!

Spring 2025 E-News

🌸🌱👋 Read our new article with the Organic Science Cluster 4, find new issues of BC Food Web’s research briefs, and join a Farmer Innovation Advisory Group.