The climatology of soil moisture, evaporation, and non-moisture stress days for corn in Iowa
✍ Scribed by Robert F. Dale
- Publisher
- Elsevier Science
- Year
- 1968
- Weight
- 842 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0002-1571
No coin nor oath required. For personal study only.
✦ Synopsis
A method of considering the interaction upon the corn crop of potential evapotranspiration, soil moisture, and the ease with which the plant available water can be extracted is examined for possible use in regional agricultural planning. The climatology of the number of non-moisture stress days in a critical corn phenological period is prepared for four stations in Iowa. The climatology of the input variables-soil moisture under corn, evaporation, and precipitation--is also presented for the four areas. With the non-stress day climatology it is shown that the area receiving the higher average precipitation paradoxically suffered the higher frequency of unfavorable weather and reduced corn yields due to moisture stress.
ROCK RAPIDS
Fig.1. Location of long term Iowa evaporation and precipitation stations used in this study. Winged circles are stations where both evaporation and precipitation are observed, open circles precipitation only.