Publication Date
1997
Description
Two field trials were carried out to reexamine the role of total nonstructural carbohydrates (TNC) and nitrogen (N) of the stubble in regrowth of orchardgrass (Dactylis Glomerata L.) during 10 days after cutting and the yield of next cutting. The regrowth and the yield were independent of TNC content in the stubble. They increased with N content in the stubble derived from the different rate of previous N application. When the TNC content in the stubble at the time of cutting was more than about 18% (dry matter basis), the regrowth even in a darkroom was not affected by the TNC content. From these results we concluded that N in the stubble at the time of cutting played a more important role in the regrowth after cutting and the yield of orchardgrass than TNC in the stubble.
Citation
Matsunaka, T; Ishii, T; and Jin, M, "Nitrogen in Stubble as a Limiting Factor of Regrowth and Yield of Orchardgrass After Cutting" (2024). IGC Proceedings (1993-2023). 5.
https://uknowledge.uky.edu/igc/1997/session10/5
Included in
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Nitrogen in Stubble as a Limiting Factor of Regrowth and Yield of Orchardgrass After Cutting
Two field trials were carried out to reexamine the role of total nonstructural carbohydrates (TNC) and nitrogen (N) of the stubble in regrowth of orchardgrass (Dactylis Glomerata L.) during 10 days after cutting and the yield of next cutting. The regrowth and the yield were independent of TNC content in the stubble. They increased with N content in the stubble derived from the different rate of previous N application. When the TNC content in the stubble at the time of cutting was more than about 18% (dry matter basis), the regrowth even in a darkroom was not affected by the TNC content. From these results we concluded that N in the stubble at the time of cutting played a more important role in the regrowth after cutting and the yield of orchardgrass than TNC in the stubble.
