Browsing by Subject "crops"
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Item Best Management Practices for Nitrogen on Coarse Textured Soils(University of Minnesota Extension, 2008) Rehm, George; Lamb, John; Rosen, Carl J; Randall, GylesItem Best management practices for Nitrogen use in northwestern Minnesota(University of Minnesota Extension, 2008) Sims, Albert; Rehm, George; Lamb, JohnItem Best management practices for Nitrogen use in South-Central Minnesota(University of Minnesota Extension, 2008) Randall, Gyles; Rehm, George; Lamb, John; Rosen, Carl JItem Best Management Practices for Nitrogen Use in Southeastern Minnesota(University of Minnesota Extension, 2008) Randall, Gyles; Rehm, George; Lamb, JohnItem Best management practices for Nitrogen use in southwestern and west-central Minnesota(University of Minnesota Extension, 2008) Rehm, George; Lamb, John; DeJong-Hughes, Jodi; Randall, GylesItem Biogeographic bases for a shift in crop C : N : P stoichiometries during domestication(Wiley, 2016) Delgado‐Baquerizo, Manuel; Reich, Peter B; García‐Palacios, Pablo; Milla, RubénWe lack both a theoretical framework and solid empirical data to understand domestication impacts on plant chemistry. We hypothesised that domestication increased leaf N and P to support high plant production rates, but biogeographic and climate patterns further influenced the magnitude and direction of changes in specific aspects of chemistry and stoichiometry. To test these hypotheses, we used a data set of leaf C, N and P from 21 herbaceous crops and their wild progenitors. Domestication increased leaf N and/or P for 57% of the crops. Moreover, the latitude of the domestication sites (negatively related to temperature) modulated the domestication effects on P (+), C (−), N : P (−) and C : P (−) ratios. Further results from a litter decomposition assay showed that domestication effects on litter chemistry affected the availability of soil N and P. Our findings draw attention to evolutionary effects of domestication legacies on plant and soil stoichiometry and related ecosystem services (e.g. plant yield and soil fertility).Item Clovers for Minnesota(Minnesota Agricultural Experiment Station, 1952-06) Thomas, H. L.; et al.CLOVERS are valuable crops in Minnesota. They produce feed cheaply and help build the soil. We are not sure of the exact acreage and distribution of the clovers in Minnesota, partly because they are often grown in mixtures and used for various purposes, such as for hay, pasture, silage, and seed crops. Figure 1 shows acreage of red clover, alsike, timothy, and mixtures in 1950; figure 2 shows sweet clover acreage. Ladino is so new to the state that no estimates of acreage are available, although this acreage must necessarily be small.Item Indigenous Corn Propagation Project(2007) Markhart, Bud