Arid
DOI10.1016/j.agwat.2016.09.025
Irrigation management of greenhouse zucchini with different soil matric potential level. Agronomic and environmental effects
Contreras, J. I.; Alonso, F.; Canovas, G.; Baeza, R.
通讯作者Contreras, J. I.
来源期刊AGRICULTURAL WATER MANAGEMENT
ISSN0378-3774
EISSN1873-2283
出版年2017
卷号183页码:26-34
英文摘要

Greenhouse horticultural crops are characterized by high levels of efficiency and productivity of irrigation water. But they still can and must be improved, especially in arid areas. The objective of this research was to study the effect of the soil matric potential level on the bio-productivity of zucchini crop, the water use efficiency (WUE) and nutrients use efficiency by changing the threshold of soil matric potential. An experiment was conducted in greenhouse-grown zucchini on a sand-mulched soil and fertigation with inorganic fertilizer. Automatic activation of irrigation through an electronic tensiometer and three treatments were applied: Activation of irrigation to -10 kPa and application of volume of 1.5 Lm(-2) (T1), activation of irrigation to -25 kPa and application of volume of 2.0 Lm(-2) (T2) and activation of irrigation to -40 kPa and application of volume of 3.0 Lm(-2) (T3). Yield, leaf area, biomass, water consumption, WUE and nutrients, drainage volume and physical-chemical parameters of the soil were determined. The results show that T2 slightly reduced the weight of the fruit with respect to T1, but not the number of fruit, obtaining a significantly lower consumption of water. Lower weight fruits and less number of fruits were obtained by T3. Reducing the soil moisture tension level increased substantially water consumption as a result of the differences in vegetative growth (leaf area and biomass) in plants. Highest values of WUE and nutrients use efficiency were registered by T2 and T3. In none of the treatments, drainage was obtained. Soil physical-chemical parameters were not affected by treatments. Independently of soil matric potential, increased soil salinity occurred after the growing season. The soil matric potential of -25 kPa was the best considering agronomic and environmental aspects, as the most efficient use of water and nutrients obtaining a commercial production of 15 kg m(-2). (C) 2016 Elsevier B.V. All rights reserved.


英文关键词Soil moisture sensors Electronic tensiometer Yield Biomass Water use efficiency Nutrient use efficiency
类型Article
语种英语
国家Spain
收录类别SCI-E
WOS记录号WOS:000395212700004
WOS关键词NITROGEN USE EFFICIENCY ; WATER-USE ; REFERENCE EVAPOTRANSPIRATION ; YIELD ; TOMATO ; QUALITY ; PEPPER ; GROWTH ; COVER ; CROPS
WOS类目Agronomy ; Water Resources
WOS研究方向Agriculture ; Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/197139
作者单位IFAPA Ctr La Mojonera, Camino San Nicolas 104745, La Mojonera, Almeria, Spain
推荐引用方式
GB/T 7714
Contreras, J. I.,Alonso, F.,Canovas, G.,et al. Irrigation management of greenhouse zucchini with different soil matric potential level. Agronomic and environmental effects[J],2017,183:26-34.
APA Contreras, J. I.,Alonso, F.,Canovas, G.,&Baeza, R..(2017).Irrigation management of greenhouse zucchini with different soil matric potential level. Agronomic and environmental effects.AGRICULTURAL WATER MANAGEMENT,183,26-34.
MLA Contreras, J. I.,et al."Irrigation management of greenhouse zucchini with different soil matric potential level. Agronomic and environmental effects".AGRICULTURAL WATER MANAGEMENT 183(2017):26-34.
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