Russia’s potential to increase grain production by expanding area

Increase Profit: Feeding Cows by Body Condition and Production Potential

No-till Grain Production in Wyoming: Status and Potential

In dryland cropping systems, optimal yields require that nutrient supply matches the soil’s yield potential supported by available moisture. Conservation tillage systems that leave at least 30 percent of the soil surface covered by residue dramatically increase moisture retained in the soil compared to crop-fallow systems. This enables producers to plant two, three, or four consecutive crops, o...

The potential role of sheep in dryland grain production systems

In dryland farming areas of Montana, annual precipitation is not sufficient for annual planting of cereal grains. Instead, a crop-summer fallow farming system is used to conserve soil moisture and increase available nitrogen for subsequent crop growth. Managing this summer fallow, either by mechanical means or with herbicides, is the highest variable cost associated with dryland grain productio...

Area-expanding Embeddings of Rectangles

We estimate whether there is a k-expanding embedding from one n-dimensional rectangle into another. Our estimates are accurate up to a constant factor C(n). Suppose that U, V ⊂ R are open sets. An embedding I : V → U is called kexpanding if, for every k-dimensional surface Σ ⊂ V , the volume of I(Σ) is at least the volume of Σ. Our theorem describes when there is a k-expanding embedding from on...

Expanding the donor pool to increase renal transplantation.

INTRODUCTION The goal of the Eurotransplant renal allocation scheme is to provide every patient on the waiting list with a reasonably balanced opportunity for a donor offer. New initiatives were taken in order to maximize donor usage while maintaining a successful transplant outcome. METHODS Two Eurotransplant projects were launched in order to accommodate changes in donor and recipient profi...