Nitrogen Fertilization and Overirrigation of Spring and Winter Wheat

Smith, J.H. and Douglas, C.L. and LeBaron, M.J. (1970) Nitrogen Fertilization and Overirrigation of Spring and Winter Wheat. pp. 112-118. In: Proc. 21st Ann. Pac. NW Fert. Conf. 1970/07/14-16. Pac. NW Plant Food Assn.

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Abstract

When fall or spring wheat is irrigated early in the spring before the
available soil moisture is depleted, the yellowing that frequently results is
a symptom of reduced crop vigor. Robins and Domingo (1) observed no benefit
from irrigating spring wheat before the boot stage unless severe moisture stress
developed. They also found that reductions in early vegetative growth and
plant height that resulted from drought greatly reduced susceptibility to
lodging during and following later irrigations. Although irrigation may be
necessary for emergence under extreme drought conditions, Salter and Goode (2)
found that water applied before emergence reduced grain yield. They concluded
that water stress during the shooting and earing stages of growth, when
development of the reproductive organs is taking place, would cause the greatest
yield loss.

Item Type:	Conference or Workshop Item (Paper)
NWISRL Publication Number:	0207
Subjects:	Irrigated crops > Small grain Mass Import - autoclassified (may be erroneous)
Depositing User:	Dan Stieneke
Date Deposited:	20 Nov 2010 21:56
Last Modified:	24 Feb 2017 20:38
Item ID:	974
URI:	https://eprints.nwisrl.ars.usda.gov/id/eprint/974