Growth, yield, water use and crop quality responses of lettuce to different irrigation quantities in a semi-arid region of high altitude

Şahin, Üstün; Kuşlu, Yasemin; Kızıloğlu, Fatih Mehmet; Çakmakcı, Talip

doi:10.37855/jah.2016.v18i03.34

Cited by 21 publications

(19 citation statements)

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“…This behavior shows the positive response of jambu to an increase in the applied water depths. Similar to the results found in this study, Silva et al (2013) evaluated water-use efficiency in beet cultivars under different soil water stresses and Sahin et al (2016) evaluated lettuce production submitted to different irrigation levels and found that the efficiency in water use reduced with a reduction of the applied water depths.…”

Section: Resultssupporting

confidence: 79%

Productivity of Irrigated Jambu Under Soil-Water Stresses and Nitrogen Doses

et al. 2020

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Jambu (Acmella oleracea (L.) R.K.) is a short-cycle leafy vegetable from the Amazon region, which needs an adequate availability of water and nutrients, mainly nitrogen, to obtain a rapid mass increase. This research aimed to study the effect of different soilwater stresses and nitrogen doses on jambu cultivation in the state of Pará. The experiments were conducted at the Igarapé-Açu experimental farm of the Federal Rural University of Amazonia (UFRA). The Jamburana variety was used in a 10 × 10 cm spacing, using a randomized block design in a 4 × 4 factorial scheme with three replications. Each plot had a dimension of 0.4 × 0.5 m (0.2 m 2 ), totaling 20 plants in 4 rows, but only the plants of the central rows were useful. Treatments consisted of four soil-water stresses (12, 18, 24, and 30 kPa) as an indication of the irrigation time (critical stress), using drip irrigation, and four nitrogen doses (0, 50, 100, and 150 kg ha −1 ). The use of soil-water stress of 12 kPa associated with nitrogen fertilization at a dose of 150 kg ha −1 is recommended for better development and production of jambu under the conditions this experiment was conducted.

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Section: Resultssupporting

confidence: 79%

Productivity of Irrigated Jambu Under Soil-Water Stresses and Nitrogen Doses

et al. 2020

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“…According to the leaf contents of N, P, and K obtained with lettuce, it can be observed that the type of system (e.g., NFT, tower and pyramidal), as well as the different quantities of water applied in these systems, did not affect plant physiology. Lettuce plant can be irrigated with less amount of irrigation water to obtain higher mineral contents and save water, but with lower water productivity [34]. In this study, chlorophyll and nutrient contents were affected by magnetic treatments, which agreed with [35], in which chlorophyll and mineral contents increased by magnetic treatment in bitter gourd.…”

Section: Plant Growth and Quality Parameterssupporting

confidence: 88%

The Impact of Advanced Static Magnetic Units on Water Properties and the Performance of Aeroponic and NFT Systems for Lettuce

El-Ssawy¹,

Abuarab²,

El-Mogy³

et al. 2020

Pol. J. Environ. Stud.

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The current study was conducted during two seasons, 2018 and 2019, to determine the optimal coupling of hydroponic systems with magnetized water levels (MWLs) to improve irrigation water characteristics, water productivity and lettuce production quality. Three hydroponic nutrient film technique (NFT; tower aeroponic and pyramidal aeroponic) systems and three levels of magnetic units (magnetized water level 1; MWL1 = 3800 gauss, level 2; MWL2 = 5250 gauss, level 3; MWL3 = 6300 gauss, and regular water (RW) was represented as a control) were tested. There was an increase in total dissolved solids (TDS) and a decrease in pH of water by increasing the magnetic level over time during the irrigation period. Maximum contents of nitrogen (N; 72.8 ppm), phosphorus (P; 223.3 ppm), and potassium (K; 425.0 ppm) were recorded in nutrient solution under irrigation with MWL3. The increase in magnetic intensity resulted in lower water consumption in all hydroponic systems compared to control. On the other hand, tower and pyramidal systems consumed less water compared to the NFT system. Maximum water consumption (3719.7 and 4175.4 m 3 ha -1 for both seasons, respectively) was observed in the NFT system under RW. Maximum water productivity was recorded with the integration of NFT system + MWL3 (83.4 kg m -3 ) in the first season and tower system + MWL3 (71.2 kg m -3 ) in the second season. In addition, the highest leaf performance curves and lettuce yield (414 g per head) and its quality (3.50, 0.46, and 7.40 mg L -1 for N, P, and K contents) were recorded with the integration of the NFT system + MWL3 compared to other treatments.

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“…Lettuce, one kind of shallow rooted and moisture sensitive crop, is the most popular vegetable with the highest consumption rate throughout the world [1,2]. Moisture stress is being crucial for yield and quality [3], because of the water condition of the root zone is one of the most important factors for lettuce cultivation.…”

Section: Introductionmentioning

confidence: 99%

An Automatic Irrigation Control System for Soilless Culture of Lettuce

Liu

2018

Water

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To achieve precise measurement of moisture content in the substrate and intelligent water-saving irrigation, a simple and low cost automatic irrigation control system based on ZigBee wireless network has been developed. A software with irrigation strategy was proposed based on the models of substrate wetting pattern, lettuce root zone and the evapotranspiration. The system could detect substrate moisture in real-time and irrigate automatically according to the threshold of substrate and the irrigation strategy. The average fresh weight per plant under intelligent irrigation are 16.60% and 11.37% higher than manual control irrigation at least in different growth stages in spring and summer, the average drainage rate of intelligent irrigation is 16.08% and 17.06% smaller than manual control irrigation in spring and summer, and the irrigation water use efficiency of intelligent irrigation is 68.03% and 98.61% higher than manual control irrigation in spring and summer. The results show that the system is a promising tool for scientific and rational irrigation decision.

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Growth, yield, water use and crop quality responses of lettuce to different irrigation quantities in a semi-arid region of high altitude

Cited by 21 publications

References 0 publications

Productivity of Irrigated Jambu Under Soil-Water Stresses and Nitrogen Doses

Productivity of Irrigated Jambu Under Soil-Water Stresses and Nitrogen Doses

The Impact of Advanced Static Magnetic Units on Water Properties and the Performance of Aeroponic and NFT Systems for Lettuce

An Automatic Irrigation Control System for Soilless Culture of Lettuce

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