Crop yield and water use efficiency under aerated irrigation: A meta-analysis

Du, Yadan; Niu, Wenquan; Gu, Xiaobo; Zhang, Qian; Cui, Bingjing; Zhao, Ying

doi:10.1016/j.agwat.2018.07.038

Cited by 86 publications

(34 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Similar conclusions had been drawn by previous workers [14,19]. This could be expected, because the air pathway becomes more tortuosity at higher irrigation levels, which reduces diffusion rates of soil oxygen [10]. With respect to the high irrigation level, lower yield under low irrigation level was investigated, which was primarily the result of restricted crop growth (Figures 3 and 4) and reduced nutrient uptake ( Figure 5).…”

Section: Tomato Yield and Iwuesupporting

confidence: 86%

“…The conduction of AI not only improves the soil-crop root micro-environment in which microorganisms can dwell and propagate [7], but also enhances the physiological characteristics of plants [8,9]. AI is well recognized to increase crop yield and WUE [5,6,10]. For example, Bhattarai et al [5] found that compared to non-aerated irrigation, fruit yield with aeration was 21% and 38% higher, and WUE of biomass as gram of biomass per liter of applied water with aeration was 16% and 32% larger in the moisture and salinity experiments, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…For example, Bhattarai et al [5] found that compared to non-aerated irrigation, fruit yield with aeration was 21% and 38% higher, and WUE of biomass as gram of biomass per liter of applied water with aeration was 16% and 32% larger in the moisture and salinity experiments, respectively. Du et al [10] concluded that AI improved crop yields by 19.3% and WUE by 17.9% on average through a meta-analysis. Zhu et al [6] revealed that with respect to the control, tomato yield per plant and WUE under AI was increased by 29% and 28.1%, respectively.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Optimum Irrigation Schedule with Aeration for Greenhouse Tomato Cultivations Based on Entropy Evaluation Method

et al. 2019

View full text Add to dashboard Cite

To balance multiple objectives of high yield by farmers, high quality by customers, and high irrigation water use efficiency (IWUE) for sustainable development of agriculture, a two-growing-season study was performed to test the effect of aeration at three irrigation levels (60%, 80%, and 100% of full irrigation) on crop growth, nutrient uptake, yield, IWUE, and fruit quality of tomato. The results showed that compared to the control, aeration significantly increased total dry weight at harvest, total N and K accumulation, which increased tomato yield by 23% and IWUE by 23% (p < 0.05). Yield and IWUE were significantly affected by irrigation with the increasing rate of 20.5% and 14.3% for yield, and with the decreasing rate of 27.7% and 8.6% for IWUE under 100% of full irrigation than that under 60% and 80% of full irrigation, respectively. Aeration positively impacted fruit quality while irrigation had a negative impact (p > 0.05). Based on these indicators, full irrigation with aeration could be an appropriate schedule for greenhouse tomato cultivations by the entropy evaluation method with the comprehensive score of 0.879 and 0.77 for the spring-summer and autumn-winter season, respectively. The result is of great significance to the farmers’ or researchers’ management of aerated irrigation in greenhouse tomatoes.

show abstract

Section: Tomato Yield and Iwuesupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Optimum Irrigation Schedule with Aeration for Greenhouse Tomato Cultivations Based on Entropy Evaluation Method

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Research has shown that aerated drip irrigation effectively reduces the soil mechanical strength and improves soil permeability, [1][2][3] alleviates hypoxia in soil irrigation, 4 ensures a good growth environment for roots, maintains the normal crop metabolism, and improves the water and nutrient utilization rate in order to save water and increase production. [5][6][7][8][9][10] Especially in heavy clay environments, aerated drip irrigation can signicantly improve soil hypoxia, crop yield and quality, and the protability of crop production. 11 In addition, aerated drip irrigation technology can also create a suitable soil water and gas environment for microbial reproduction, increase the number of soil nitrifying bacteria and improve soil enzyme activity.…”

Section: Introductionmentioning

confidence: 99%

Influence of micro/nanobubbles on clogging in drip irrigation systems

Qi-biao

et al. 2020

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…A typical example is that of southern China, with its humid climate and abundant rainfall, as well as lack of incentives and motivation to implement water-saving irrigation [30]. (2) The construction and management of the irrigation area: modernization of the construction and management of the irrigation area (which encompasses engineering construction, management systems and mechanisms, and the application of advanced irrigation technology) is an important component in improving irrigation water use efficiency, extreme natural disaster governance, and regional ecological sustainable development, thus providing strong support for the development of modern water-saving agriculture [25,[31][32][33][34][35]. (3) Economic policy: an increasing number of studies have found that economic policy (including subsidy policies, water price policies, and water use restrictions) can affect the preferences and behaviors of peasant households, and provide them with incentives to use water-saving irrigation technology and to change their crop planting structure, which leads to changes in the water use efficiency of agricultural irrigation [36][37][38].…”

mentioning

confidence: 99%

Prediction of Technological Change under Shared Socioeconomic Pathways and Regional Differences: A Case Study of Irrigation Water Use Efficiency Changes in Chinese Provinces

et al. 2019

View full text Add to dashboard Cite

Technological changes in water use efficiency directly influence regional sustainable development. However, few studies have attempted to predict changes in water use efficiency because of the complex influencing factors and regional diversity. The Chinese Government has established a target of 0.6 for the effective utilization coefficient of irrigation water, but it is not clear how the coefficient will change in different provinces in the future. The purpose of this study is to predict irrigation water use efficiency changes using a conditional convergence model and combined with the shared socioeconomic pathways (SSPs) scenario settings and hydro-economic (HE) classification to group 31 Chinese provinces by their different economic and water resources conditions. The results show that the coefficient exponentially converges to 0.6 in half the provinces under SSP1 (sustainability), SSP2 (middle of the road), and SSP5 (conventional development) by 2030, whereas SSP3 (fragmentation) and SSP4 (inequality) are generally inefficient development pathways. HE-3 provinces (strong economic capacity, substantial hydrological challenges) achieve the greatest efficiency improvements (with all coefficients above 0.6), and SSP1 is a suitable pathway for these provinces. HE-2 provinces (strong economic capacities, low hydrological challenges) have relatively low efficiency because they lack incentives to save water, and SSP1 is also suitable for these provinces. For most HE-1 provinces (low economic capacity, low hydrological challenges), the coefficients are less than 0.6, and efforts are required to enhance their economic capacity under SSP1 or SSP5. HE-4 provinces (low economic capacity, substantial hydrological challenges) would improve efficiency in a cost-efficient manner under SSP2. utilization efficiency of natural resources, is a possible way to solve the current dilemma of sustainable development [3,4], because it has a direct impact on the total scale of natural resource utilization, and thus directly influences whether the regional social economy is in a sustainable development state [5,6]. Technological change in agriculture irrigation water use efficiency is of fundamental significance for solving water scarcity and increasing crop productivity, and achieving highly efficient irrigation is crucial to balancing water resources input and sustainable agricultural economic growth [7][8][9].The theory of technological change generally distinguishes two types of technological change: technological catch-up and technological diffusion. Technological catch-up concerns the knowledge production function and occurs through the mechanism of learning by doing. It requires continuous additional capital inputs and manufacturers, and the labor force must constantly learn and master new skills in the production process, which brings about extensive progress in social productivity [3,[10][11][12]. Technological diffusion is brought about by technological transmission and is mainly realized through open trade, technology transfer,...

show abstract

Crop yield and water use efficiency under aerated irrigation: A meta-analysis

Cited by 86 publications

References 34 publications

An Optimum Irrigation Schedule with Aeration for Greenhouse Tomato Cultivations Based on Entropy Evaluation Method

An Optimum Irrigation Schedule with Aeration for Greenhouse Tomato Cultivations Based on Entropy Evaluation Method

Influence of micro/nanobubbles on clogging in drip irrigation systems

Prediction of Technological Change under Shared Socioeconomic Pathways and Regional Differences: A Case Study of Irrigation Water Use Efficiency Changes in Chinese Provinces

Contact Info

Product

Resources

About