Article Title
Keywords
crop intensification, irrigated corn, sprinkler irrigation, water productivity
Abstract
This corn intensification study was conducted under sprinkler irrigation from 2020 to 2021 at the Kansas State University Northwest Research-Extension Center near Colby, KS. Two corn hybrids (Pioneer 1197 and Pioneer 1089) were grown with advanced fertilization at three plant densities (42,000, 38,000, and 34,000 plants/a) using three irrigation levels (115, 100, or 85% of calculated well-watered ET minus rain). As anticipated, there was no additional need for irrigation above normal amounts (100% of ET - Rain), giving further evidence that crop intensification is possible without negatively affecting water resource use. Yields were excellent in both years, averaging 227 bu/a in 2020 and 306 bu/a in 2021. Both corn hybrids yielded well and overall the greater plant density gave slightly greater yields. Crop water productivity was maximized at an irrigation level of 85% of ET - Rain, with the Pioneer 1197 hybrid, and with a plant density of 42,000 plants/a.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Lamm, F. R.
(2022)
"Intensification of Sprinkler-Irrigated Corn Production,"
Kansas Agricultural Experiment Station Research Reports:
Vol. 8:
Iss.
8.
https://doi.org/10.4148/2378-5977.8333