Economic Comparison of Subsurface Drip and Center Pivot Sprinkler Irrigation Using Spreadsheet Software

2015 ◽  
Vol 31 (6) ◽  
pp. 929-936 ◽  
1998 ◽  
Vol 14 (4) ◽  
pp. 391-398 ◽  
Author(s):  
D. M. O’Brien ◽  
D. H. Rogers ◽  
F. R. Lamm ◽  
G. A. Clark

jpa ◽  
1992 ◽  
Vol 5 (4) ◽  
pp. 431-437 ◽  
Author(s):  
Darrell J. Bosch ◽  
Norris L. Powell ◽  
F. Scott Wright

2001 ◽  
Author(s):  
Francisco L. Santos ◽  
Manuel F. Bica ◽  
Nádia S. Castanheira ◽  
Olga C. Martins ◽  
Célia Figueiredo

Plant Disease ◽  
2002 ◽  
Vol 86 (11) ◽  
pp. 1211-1218 ◽  
Author(s):  
G. T. Browne ◽  
W. R. DeTar ◽  
B. L. Sanden ◽  
C. J. Phene

Drip and sprinkler systems were compared for effectiveness as preplant metam sodium chemigation systems and conduciveness to late-season development of stem rot disease on potato. Sclerotia of Sclerotium rolfsii were used in a bioassay to test efficacy of metam sodium treatments. Drip application of metam sodium (532 liters/ha, 32.8% a.i.) through lines at 7 cm of depth in preformed beds (depths from bed top unless stated otherwise) killed all test sclerotia at 15-, 30-, or 46-cm depths. Drip application of the metam sodium through drip lines at 41 or 46 cm of depth resulted in 0 to 17 or 68 to 80% survival, respectively, of test sclerotia at 15 cm of depth; but all the sclerotia at 30 or 46 cm of depth were killed. Compared with the drip applications, sprinkler chemigation with metam sodium generally treated beds less effectively (8 to 100% of sclerotia survived at 15 cm, 62 to 100% at 30 or 46 cm). On flat ground, drip and sprinkler chemigation (metam sodium, 560 liters/ha) performed equally (4, 37, and 77% survival at 15-, 45-, and 75-cm depths, respectively). After potato planting and artificial soil infestation with S. rolfsii (5 to 6 weeks before harvest), subsurface drip-irrigated plots (line depth of 41 or 46 cm) had lower incidence of stem rot disease at harvest (13 to 23% on tubers) than that in sprinkler plots (56 to 62%). The low incidence of disease was associated with relatively dry surface soil. Subsurface drip chemigation with metam sodium in preformed plant beds does not consistently eradicate S. rolfsii sclerotia near the upper bed surface but, in an arid climate, it is less conducive than sprinkler irrigation to development of stem rot disease of potato.


2022 ◽  
Vol 16 (4) ◽  
pp. 19-23
Author(s):  
Natal'ya Kudryashova ◽  
Galina Bulahtina ◽  
Aleksandr Kudryashov ◽  
Andrey Hyupinin

In recent years, livestock farms in the Astrakhan region have mainly used grasses from natural hayfields and pastures for fodder. But, due to the sharp aridization of the climate, and, as a consequence, the more frequent droughts, as well as the unregulated growth of the number of animals on farms, the reserves of natural herbage are often insufficient. Therefore, the region began to increase the area of sown hayfields for irrigation. The aim of the work is to study the effect of various irrigation methods on the productivity of cereal-leguminous mixtures with multi-cut use in the conditions of light chestnut soils of the Northern Caspian region. The studies were carried out in 2017-2020 in the Astrakhan region. All studied irrigation methods (sprinkler irrigation, drip irrigation with a belt laying depth of 0.0, 0.15, 0.25, 0.35 and 0.45 m, periodic flooding), with the exception of subsoil irrigation, with an ordinary method of sowing contributed to the development of both cereals and legumes. In these variants of the experiment, cereals occupied a significant part in the total herbage - from 40.0 to 61.0%. When using the spread sowing method, only in one variant, the share of cereal grasses was 54.0% (periodic flooding). In all others with this method of sowing, the amount of cereals in the total mass was insignificant, or they were completely absent. The widespread method of sowing was also the most productive in all the years of research. The maximum yield in the experiment was noted in all variants of the experiment in the third year of the life of grasses in 2019.The highest productivity with the spread method of sowing was noted in 2019 in the variants of the experiment with a belt laying depth of 0.25, 0.35 and 0.45 m and amounted to 98.1, 104.4 and 111.0 t/ha, respectively. In the variants with the row-sowing method, the yield was lower than with the wide-spread one. The highest yield with this method of sowing was also noted in 2019 in variants with subsurface drip irrigation with a belt laying depth of 0.35 and 0.45 m and amounted to 105.5 and 104.8 t/ha, respectively


1992 ◽  
Vol 26 (7-8) ◽  
pp. 1593-1601 ◽  
Author(s):  
G. Oron ◽  
Y. DeMalach ◽  
Z. Hoffman ◽  
Y. Manor

Field studies were undertaken in recent years to confirm the hypothesis that treated secondary wastewater can be disposed by using it in drip systems for irrigation of edible crops. This hypothesis was examined in field experiments conducted with the treated domestic wastewater of the city of Beer-Sheva, Israel. The results indicated that contamination of the soil surface and plants was minimal when subsurface drip irrigation was applied, but maximal when sprinkler irrigation was utilized.


1969 ◽  
Vol 12 (6) ◽  
pp. 0790-0794 ◽  
Author(s):  
D. C. Kincaid ◽  
D. F. Heermann and E. G. Kruse

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