Crops & Soils最新文献

This is the fourth article in our series on soil health and greenhouse gas emissions on U.S. dairies associated with crop production. In this article, we’ll look at innovative manure products that might help dairy farmers better manage their manure resources and answer some key questions. Earn 1 CEU in Sustainability by reading this article and taking the quiz at https://web.sciencesocieties.org/Learning-Center/Courses.

Soil acidification, a common issue in high-rainfall areas of the U.S. and Canada, has become a more prevalent problem in the semi-arid areas of the western U.S. Liming is an effective way to mitigate soil acidity as the carbonate reacts with hydrogen ions in the soil solution to increase the soil pH. However, questions exist about the type of liming product, lime rate, cost effectiveness, and how long the lime benefits last, especially in regions that have historically not needed lime, like much of the Great Plains. Earn 0.5 CEUs in Soil & Water Management by reading the article and taking the quiz at https://web.sciencesocieties.org/Learning-Center/Courses.

Underground pipelines are a safe and effective method for transporting oil and natural gas to fuel our lifestyles and economy. New pipeline installations are on the rise and primarily installed in rural areas. But what are the consequences of this energy infrastructure on soil and croplands? Earn 0.5 CEUs in Soil & Water Management by reading the article and taking the quiz at https://web.sciencesocieties.org/Learning-Center/Courses.

Today, 90 million acres are planted in corn in the U.S., producing an average of roughly 15 billion bushels per year (https://bit.ly/3SE9T8F). 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. Earn 1 CEU in Crop Management by reading this article and taking the quiz at https://web.sciencesocieties.org/Learning-Center/Courses.

The 4R nutrient stewardship framework has brought us closer to improving our nutrient use efficiency. However, given the inherent “leakiness” of the N cycle, it is challenging to increase N use efficiency to optimum levels. Newer fertilizer technologies, like enhanced-efficiency fertilizers (EEFs), are tools that can help achieve this goal. To determine if EEFs should be incorporated into nutrient management programs, growers and crop advisers should consider the various types of EEFs available, their functions within the soil, and the timing of application relative to the crop’s nutrient uptake demand. Earn 1 CEU in Nutrient Management by reading this article and taking the quiz at https://web.sciencesocieties.org/Learning-Center/Courses.

In Washington State, east of the Cascade Mountains, alfalfa is grown for seed and forage. Alfalfa weevils are the primary defoliators of alfalfa grown for forage and seed, and Lygus bugs are the key direct pest in alfalfa seed production in the Pacific Northwest. Both alfalfa weevil and Lygus bugs are controlled by insecticide applications. Some levels of insecticide resistance have been observed in recent years. This article reports on a series of experiments that were conducted to quantify the resistance status of Lygus bugs and alfalfa weevils to several insecticides in Washington State. Earn 1.5 CEUs in Integrated Pest Management by reading this article and taking the quiz at https://web.sciencesocieties.org/Learning-Center/Courses.