Effects of partial root-zone drying irrigation on yield, fruit quality, and water-use efficiency in processing tomato

Agriculture is a big consumer of fresh water in competition with other sectors of the society. The agricultural sector continues to have a negative impact on the ecological status of the environment. The worlds interest in high quality food is increasing. Field experiments were conducted to investigate the effect of subsurface drip irrigation on physiological responses, yield and water use efficiency, Soil nitrogen, Root weight density of potato in the semi-humid region of middle China using subsurface drip irrigation. The experiment used second-stage treated wastewater with and without addition of chloride, and both subsurface drip and furrow irrigations were investigated. Results indicated that the alternate partial root-zone irrigation is a practicable water-saving strategy for potato. The drip with chlorinated and non-chlorinated water improved water use efficiency by 21.48% and 39.1%, respectively, and 44.1% in the furrow irrigation. Partial root zone drying irrigation stimulates potato root growth and enhances root density. The content of the heavy metal in the potato tubers is no more than the National Food Requirements, and it is consistent with National Food Hygiene Stands.

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Different potassium fertilization levels influence water-use efficiency, yield, and fruit quality attributes of cocktail tomato—A comparative study of deficient-to-excessive supply

Scientia Horticulturae ◽

10.1016/j.scienta.2020.109562 ◽

2020 ◽

Vol 272 ◽

pp. 109562

Author(s):

Bashar Daoud ◽

Elke Pawelzik ◽

Marcel Naumann

Keyword(s):

Comparative Study ◽

Water Use Efficiency ◽

Water Use ◽

Fruit Quality ◽

Quality Attributes ◽

Potassium Fertilization ◽

Use Efficiency

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Performance of direct root-zone deficit irrigation on Vitis vinifera L. cv. Cabernet Sauvignon production and water use efficiency in semi-arid southcentral Washington

Agricultural Water Management ◽

10.1016/j.agwat.2019.04.023 ◽

2019 ◽

Vol 221 ◽

pp. 47-57 ◽

Cited By ~ 4

Author(s):

Xiaochi Ma ◽

Karen A. Sanguinet ◽

Pete W. Jacoby

Keyword(s):

Vitis Vinifera ◽

Water Use Efficiency ◽

Water Use ◽

Deficit Irrigation ◽

Root Zone ◽

Vitis Vinifera L ◽

Cabernet Sauvignon ◽

Use Efficiency ◽

Semi Arid

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Partial root-zone drying in field-grown papaya: Gas exchange, yield, and water use efficiency

Agricultural Water Management ◽

10.1016/j.agwat.2020.106421 ◽

2021 ◽

Vol 243 ◽

pp. 106421

Author(s):

Dionei Lima Santos ◽

Eugênio Ferreira Coelho ◽

Fernando França da Cunha ◽

Sérgio Luiz Rodrigues Donato ◽

Wallace de Paula Bernado ◽

...

Keyword(s):

Gas Exchange ◽

Water Use Efficiency ◽

Water Use ◽

Root Zone ◽

Use Efficiency

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Water use efficiency and water use of Mediterranean annual pastures in southern Australia

Australian Journal of Agricultural Research ◽

10.1071/ar98109 ◽

1999 ◽

Vol 50 (6) ◽

pp. 1035 ◽

Cited By ~ 22

Author(s):

T. P. Bolger ◽

N. C. Turner

Keyword(s):

Water Use Efficiency ◽

Linear Relationship ◽

Water Use ◽

Management Practices ◽

Root Zone ◽

Annual Rainfall ◽

High Input ◽

Deep Drainage ◽

Pasture Production ◽

Use Efficiency

There is a perception in the farming and research communities that annual pastures have low produc- tivity and water use, and contribute disproportionately to problems of rising watertables and dryland salinity. Our aim was to determine potential pasture production in relation to water use and the influence of management factors on this relationship. Experiments were initiated at 4 locations along a gradient of 300–1100 mm annual rainfall across the Western Australian agricultural zone. At each site a high input treatment was compared with a low input control. There was a strong linear relationship between water use and pasture production up to 440 mm of growing- season water use. After 30 mm of water use the potential pasture production was 30 kg/ha.mm. An upper limit to pasture production may be reached at about 12 000 kg/ha in this environment due to rainfall distribution patterns and soil water holding capacity in the root-zone. Although pasture production was increased by as much as 3500 kg/ha, water use was generally similar or only slightly more for high input compared with control plots. The marginally higher water use by the high input pastures resulted in an extra 18 mm of water extracted from the subsoil at one location by the end of the third season. A drier subsoil may provide a buffer for storing excess rainfall and reduce deep drainage. Estimated drainage was small at low rainfall sites so even marginal increases in water use by highly productive annual pastures could play a significant role in reducing water loss to deep drainage and mitigating water-table rise and secondary salinisation in low rainfall regions. Management practices aimed at promoting early growth and adequate leaf area should maximise water use, water use efficiency, and yield. The linear relationship defining potential pasture production provides a useful benchmark to farmers.

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