The effect of regulated deficit irrigation on tree water use and growth of peach

1993 ◽  
Vol 68 (2) ◽  
pp. 261-274 ◽  
Author(s):  
Anne-Maree Boland ◽  
P. D. Mitchell ◽  
P. H. Jerie ◽  
I. Goodwin
Keyword(s):  
Water Use ◽  
Deficit Irrigation ◽  
Regulated Deficit Irrigation ◽  
Tree Water Use

scholarly journals Long-term Effects of Restricted Root Volume and Regulated Deficit Irrigation on Peach: II. Productivity and Water Use

2000 ◽  
Vol 125 (1) ◽  
pp. 143-148 ◽  
Author(s):  
A.M. Boland ◽  
P.H. Jerie ◽  
P.D. Mitchell ◽  
I. Goodwin ◽  
D.J. Connor
Keyword(s):  
Water Use ◽  
Deficit Irrigation ◽  
Prunus Persica ◽  
Irrigation Treatment ◽  
Interactive Effects ◽  
Long Term Effects ◽  
Root Volume ◽  
Regulated Deficit Irrigation ◽  
Tree Water Use ◽  
Soil Volume

Individual and interactive effects of restricted root volume (RRV) and regulated deficit irrigation (RDI) on productivity and water use of peach trees [Prunus persica (L.) Batsch `Golden Queen'] were studied over 3 years (1992-95). Trees were grown in lysimeters of five different soil volumes (0.025, 0.06, 0.15, 0.4, and 1.0 m3) with either full or deficit (RDI) irrigation. In Years 3 and 4, fruit size was reduced by up to 30% on trees in the two smallest volumes. Tree water use was positively related to increasing soil volume (linear, P < 0.001; quadratic, P < 0.011) in all years ranging from 1.8 to 4.4 L·mm-1 Epan in the post-RDI period of Year 2. Water use of deficit-irrigated trees was less than fully irrigated trees and there was an interaction between soil volume and irrigation treatment during RDI. Water relations did not limit growth or productivity. Tree water use was reduced under root restriction as a consequence of canopy demand rather than leaf function. Results suggest that a combination of restricted root volume and development of water stress achieve the RDI response in the Goulburn Valley, Australia.

scholarly journals Effect of the optimized regulated deficit irrigation methodology on water use in garlic

2022 ◽  
Vol 260 ◽  
pp. 107280
Author(s):  
B.C. Léllis ◽  
A. Martínez-Romero ◽  
R.C. Schwartz ◽  
J.J. Pardo ◽  
J.M. Tarjuelo ◽  
...  
Keyword(s):  
Water Use ◽  
Deficit Irrigation ◽  
Regulated Deficit Irrigation

Effect of the optimized regulated deficit irrigation methodology on water use in barley under semiarid conditions

2020 ◽  
Vol 228 ◽  
pp. 105925 ◽  
Author(s):  
J.J. Pardo ◽  
A. Martínez-Romero ◽  
B.C. Léllis ◽  
J.M. Tarjuelo ◽  
A. Domínguez
Keyword(s):  
Water Use ◽  
Deficit Irrigation ◽  
Regulated Deficit Irrigation ◽  
Semiarid Conditions

scholarly journals Optimized Regulated Deficit Irrigation Management for Watermelon Cultivation in a Semiarid Region

2021 ◽  
Vol 9 (2) ◽  
pp. 113
Author(s):  
Kelly Nascimento Leite ◽  
Daniel Fonseca de Carvalho ◽  
Jose Maria Tarjuelo Martin- Benito ◽  
Geocleber Gomes de Sousa ◽  
Alfonso Dominguez Padilla
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Water Scarcity ◽  
Deficit Irrigation ◽  
Irrigation Management ◽  
Control Treatment ◽  
Water Volume ◽  
Semiarid Region ◽  
Regulated Deficit Irrigation ◽  
Use Efficiency

The present study aimed to validate the MOPECO crop simulation model and to determine a viable irrigation management for watermelon in the semiarid region of Northeast Brazil, using methodologies of optimized regulated deficit irrigation (ORDI) and constant deficit irrigation (CDI). The experiment was carried out during October to December 2013 and the second one from July to August 2014 in plots of land of producers in the Baixo Acaraú Irrigated Perimeter – Ceará, Brazil. Treatments were characterized by ORDI management (70, 80, 90% ETa/ETm ratio) and CDI management along the entire cycle (70, 80 and 90% ETm) and control treatment, irrigated with 100% of the water requirement of the crop (ETm). In terms of saving of water resources, the results showed that management with regulated deficit irrigation leads to favorable and economically viable results for the farmer, of water saving, especially in a situation of severe water scarcity, irrigation management with regulated water deficit (ORDI) can provide favorable and economically viable results for the farmer. The highest value of WUE (41.8 kg m-3) was obtained with the treatment of lowest water volume applied (352.1 L) in the second experiment, decreasing with the increase in the water volume used. The ORDI methodology represents a better water use efficiency for all treatments of deficit applied compared to CDI treatments. The difference of ORDI and CDI methodology provided an increase of up to 200% in the gross margin obtained with the exploration of the watermelon culture which represents a range of R$ 986.00 in profit in a situation of water scarcity, as in the case of the studied region, the strategy with water supply of 70% of ETa/ETm ratio regulated by phenological stage was recommended in order to obtain highest water use efficiency.

Sign in / Sign up

Export Citation Format

Share Document