+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Scheduling irrigations for corn with the crop water stress index cwsi



Scheduling irrigations for corn with the crop water stress index cwsi



Applied Agricultural Research 2(5): 295-300



A Crop Water Stress Index (CWSI) has been related to water use and plant water stress parameters, but irrigation scheduling based on CWSI values has not been reported. The objective of this study was to demonstrate the effectiveness of scheduling irrigations of corn (Zea mays L.) with the CWSI as computed from measurements of infrared canopy temperature, air temperature, and vapor pressure deficit. The soil type of the plot area was a fine montmorillonitic mesic Pachic Argiustoll. Irrigations were initiated when CWSI reached threshold values of 0.1, 0.2, 0.4, or 0.6. These four threshold values resulted in total irrigation amounts of 211, 185, 112, and 65 mm applied in 11, 9, 6, and 3 irrigations to the 0.1, 0.2, 0.4, and 0.6 CWSI plots, respectively. Respective yields for these plots were 10,010, 9,293, 8,399, and 6,647 kg/ha. Crop Temperature Variability (CTV) and the standard deviation of replicate plot measurements of canopy temperature were not effective quantifiers of severity of water stress. Cloudy sky conditions do not occur with sufficient frequency in the Central Great Plains to inhibit the timely use of the infrared thermometer for irrigation scheduling.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 006366685

Download citation: RISBibTeXText


Related references

Scheduling irrigations for soybeans with the crop water stress index cwsi. Field Crops Research 23(2): 103-116, 1990

Irrigation scheduling for watermelon with crop water stress index (CWSI). Journal of Central European Agriculture 6(4): 449-460, 2005

Scheduling Maize Irrigation Based on Crop Water Stress Index (Cwsi). Applied Ecology and Environmental Research 16(6): 7535-7549, 2018

Use of the Crop Water Stress Index CWSI in the irrigation scheduling of sunflower (Helianthus annuus L.). Irrigazione e Drenaggio 46(2): 21-25, 1999

Use of infrared thermometry and the Crop Water Stress Index (CWSI) for irrigation scheduling in soyabeans (Glycine max L. Merr.). Rivista di Agronomia 27(4): 282-289, 1993

Determination of Crop Water Stress Index (CWSI) and irrigation scheduling using infrared thermometer values on the first maize grown in Cukurova. Turkish Journal of Agriculture and Forestry 23(1): 87-95, 1999

Establishing crop water stress index (CWSI) threshold values for early and non-contact detection of plant water stress. 2000 ASAE Annual International Meeting, Milwaukee, Wisconsin, USA, 9-12 July 2000: 1-12., 2000

Establishing crop water stress index (CWSI) threshold values for early, non-contact detection of plant water stress. Transactions of the ASAE 45(3): 775-780, 2002

Dynamic modelling of the baseline temperatures for computation of the crop water stress index (CWSI) of a greenhouse cultivated lettuce crop. Computers and Electronics in Agriculture 153: 102-114, 2018

Irrigation Timing in Maize by Using the Crop Water Stress Index (CWSI). Cereal Research Communications 37(4): 603-610, 2009

Using an integrated crop water stress index for irrigation scheduling of two corn hybrids in a semi-arid region. Irrigation Science 35(5): 451-467, 2017

Use of the crop water stress index (CWSI) to evaluate the effects of water table depth on potato. Acta Horticulturae ( 335): 399-404, 1993

Non-water-stressed baselines for calculating crop water stress index (CWSI) for alfalfa and tall fescue grass. Transactions of the ASAE 48(2): 653-661, 2005

Quantifying drought for humid, temperate pastures using the Crop Water Stress Index (CWSI). New Zealand Journal of Agricultural Research 40(1): 17-23, 1997

Remotely-sensed canopy temperatures used for irrigation timing linked to crop water stress index (CWSI). Journal of Experimental Botany 54: 8-8, 2003