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Semidwarf Winter Wheat Response to Early Spring Clipping and Grazing¹

Vegetation removal in early spring by clipping or by grazing was studied in six fields of semidwarf winter wheat (Triticum aestivum L.). Varieties grown were ‘Games’ or ‘Nugaines’ which are common soft white wheat having exceptional stooling and yielding ability. Grazing was started as soon as livestock could obtain adequate feed from the early spring growth and stopped prior to the time the upper node could be removed by grazing. Clipping treatments were applied during this period.

Removing vegetation either by clipping or by grazing significantly decreased grain yields. Plant height, heads per square meter, and straw production were reduced by vegetation removal. Increasing the amount of vegetation removed, extending the length of time vegetation was removed, or delaying the starting of clipping or grazing increased the reduction in each of these characters.

Clipping simulated grazing of the early spring grewth within the limits of humans to estimate when and how much forage to remove to duplicate grazing.

Key Words: Grain yield • Vegetation removal • Plant height • Growth stage • Heads per square meter • Straw production

² Associate Professor of Agronomy.

Received for publication January 13, 1970.