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Clipping and Regrowth of Barnyardgrass 1
Author(s) -
Vengris Jonas,
Hill E. R.,
Field D. L.
Publication year - 1966
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1966.0011183x000600040014x
Subject(s) - biology , clipping (morphology) , echinochloa crus galli , frost (temperature) , echinochloa , cutting , agronomy , vegetative reproduction , tiller (botany) , elongation , nitrogen , horticulture , weed , philosophy , linguistics , materials science , physics , quantum mechanics , geomorphology , ultimate tensile strength , metallurgy , geology
Three field experiments were conducted to study the regrowth of barnyardgrass ( Echinochloa crusgalli (L.) Beauv.) after clipping. Yields were decreased by cutting at more frequent intervals and less mature stages of top growth. The lowest yields were obtained by continuous clipping at vegetative stage of growth before internods elongation. At the vegetative stage of growth, higher clipped plants had faster regrowth and resulted in the production of more clippings and slightly higher total yields. Plants intensively clipped and liberally fertilized with nitrogen produced higher yields at first cuttings only. Fertilization with nitrogen decreased fructosan content in the stubble. After clippings, barnyardgrass regrew until killing frost.