TY - JOUR
T1 - Optimal field partitioning for center-pivot-irrigated cotton in the texas high plains
AU - Nair, Shyam
AU - Maas, Stephan
AU - Wang, Chenggang
AU - Mauget, Steven
PY - 2013
Y1 - 2013
N2 - This study was conducted to test the hypothesis that the yield or profit from a cotton (Gossypium hirsutum L.) field can be increased by irrigating only a fraction of the field while keeping the rest as dryland when the irrigation water availability is suboptimal. The cotton growth simulation model Cotton2K was used to simulate the lint yield of cotton for different amounts of available irrigation water using historic weather data for the last 110 yr in the Texas High Plains. The data generated were used to evaluate different field partitioning strategies at four different amounts of total available irrigation water (150, 225, 300, and 375 mm). The results revealed that irrigating 30, 45, 55, and 70% of the field were the best strategies to maximize both the lint yield and profit under 150, 225, 300, and 375 mm of available irrigation water, respectively. The field partitioning strategies had a more pronounced impact on effective lint yield and profit when lower amounts of irrigation water were available and under low-rainfall conditions.
AB - This study was conducted to test the hypothesis that the yield or profit from a cotton (Gossypium hirsutum L.) field can be increased by irrigating only a fraction of the field while keeping the rest as dryland when the irrigation water availability is suboptimal. The cotton growth simulation model Cotton2K was used to simulate the lint yield of cotton for different amounts of available irrigation water using historic weather data for the last 110 yr in the Texas High Plains. The data generated were used to evaluate different field partitioning strategies at four different amounts of total available irrigation water (150, 225, 300, and 375 mm). The results revealed that irrigating 30, 45, 55, and 70% of the field were the best strategies to maximize both the lint yield and profit under 150, 225, 300, and 375 mm of available irrigation water, respectively. The field partitioning strategies had a more pronounced impact on effective lint yield and profit when lower amounts of irrigation water were available and under low-rainfall conditions.
UR - http://www.scopus.com/inward/record.url?scp=84872938155&partnerID=8YFLogxK
U2 - 10.2134/agronj2012.0219
DO - 10.2134/agronj2012.0219
M3 - Article
AN - SCOPUS:84872938155
SN - 0002-1962
VL - 105
SP - 124
EP - 133
JO - Agronomy Journal
JF - Agronomy Journal
IS - 1
ER -