Crops & Soils最新文献

The recovery of fertilizer nitrogen by crops in the year of application is usually cited as being about 50%, despite considerable efforts to improve nitrogen efficiencies in agricultural systems. The use of fertilizer additives containing urease and/or nitrification inhibitors may improve fertilizer N efficiency. This was evaluated in four experiments conducted at multiple locations across the Canadian Prairies. Earn 0.5 CEUs in Nutrient Management by reading the article and taking the quiz at https://web.sciencesocieties.org/Learning-Center/Courses.

Corn yields have increased tremendously since the 30 bu/ac days of the 1930s when Reid's Yellow Dent was just facing competition from the first batches of hybrid corn. This article looks at the development and improvement of hybrid corn over the years and provides tips for selecting next season's hybrids. See page 6. Photo by Derek Lenzen.

Canola grown in years or locations with increased temperatures shows a significant decline in seed yield. Research has shown a ∼7 bu/ac yield loss with a 5.4°F increase in growing season temperatures. Given the importance of canola in western Canada and the fact that canola is a cool-season crop, continued applied and basic research into heat tolerance is of critical importance. Earn 0.5 CEUs in Crop Management by reading this article and taking the quiz at https://web.sciencesocieties.org/Learning-Center/Courses.

To make precision agriculture work, we need to gather a lot of critical information about the field. Unmanned aircraft systems (UAS) introduced an era of on-demand remote-sensing data collection at fine spatial and temporal resolutions. With the help of UAS, detailed maps of the field can be generated, which can help farmers see how their crops are doing and where they might be facing challenges. These maps can also show if the farming methods are working well or if they need to be adjusted. In this article, we’ve provided an overview of the current state-of-the-art UAS sensors and their applications, along with associated challenges and prospects of UAS mapping in agriculture. Earn 0.5 CEUs in Crop Management by reading this article and taking the quiz at https://web.sciencesocieties.org/Learning-Center/Courses.

Plant diversity, including diversified rotation and cover crops, is a part of conservation agricultural practices that support soil microbial communities. Three case studies from Canada, Belgium, and the United States uphold the importance of cover crops for promoting the long-term abundance and diversity of the soil microbiome. These results offer information on how microbial communities respond to different agricultural management practices with the goal of developing environmentally friendly, sustainable cropping systems. Earn 1 CEU in Soil & Water Management by reading this article and taking the quiz at https://web.sciencesocieties.org/Learning-Center/Courses.

Cover cropping with legumes such as winter peas under dryland winter wheat production systems has several benefits that could improve the resiliency of production systems and agroecosystem services. This article demonstrates the use of winter pea cover crops to increase winter wheat yields in the intermediate (12–16 inch) rainfall zone and to improve drought resiliency. Earn 0.5 CEUs in Crop Management by reading the article and taking the quiz at https://web.sciencesocieties.org/Learning-Center/Courses.