Leaf and Stem Yields and Forage Quality of Three N‐fertilized Warm‐Season Grasses1

  title={Leaf and Stem Yields and Forage Quality of Three N‐fertilized Warm‐Season Grasses1},
  author={L. J. Perry and D. Baltensperger},
  journal={Agronomy Journal},
Nitrogen fertilization of warm-season tall grasses may increase dry matter yields, percentage crude protein, and in vitro dry matter disappearance (IVDMD). Leaf and stem portions of total dry matter may vary among grasses, years, and fertility levels and during the growing season. Established pure field stands of switchgrass (Panicum virgatum L.), indiangrass [Sorghastrum nutans (L.) Nash], and big bluestem (Andropogon gerardi Vitman) were fertilized annually with 0, 45, and 90 kg N/ha and… 
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Nutritive value of a single vegetative morphological stage over the growing season was similar to the leaf tissue of the tiller populations, indicating that decline in leaf IVDMD was caused by declining cell wall digestibility and leaf CP was largely influenced by environmental factors.
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Management of switchgrass for forage and seed production
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Big Bluestem Production and Forage Quality Responses to Burning Date and Fertilizer in Tallgrass Prairies
Tallgrass prairies are an important source of hay and summer forage in the Great Plains. A study was conducted in 1989 and 1990 on two excellent condition tallgrass prairies in eastern Nebraska to
Harvest timing and N application rate effects on switchgrass yield, nutrient cycling, and partitioning
ABSTRACT Harvest time (HT) and nutrient management may have an effect on switchgrass (Panicum virgatum L.) yield and nutrient cycling. Experimental objectives were to quantify HT and nitrogen (N)