Effects of deficit irrigation with saline water on soil water-salt distribution and water use efficiency of maize for seed production in arid Northwest China

Chi, Yuan; Feng, Shuyi; Huo, Zailin; Ji, Quanyi

doi:10.1016/j.agwat.2018.09.019

Cited by 85 publications

(43 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…After two years, we found that with the same irrigation quantity, brackish water irrigation can ensure soil moisture content. In our experiment, the surface soil moisture content of irrigation with brackish water was even higher than that of irrigation with fresh water, possibly because brackish irrigation changed the physical and chemical properties of the soil [21,22], or it may be that brackish water reduces the absorption of water by crops, which is in accordance with the research results of Yuan et al [23]. However, according to the research and classification of Katerji et al [24], wheat belongs to the salt-tolerant and drought-tolerant group, which has a high threshold value for salinity and drought tolerance.…”

Section: Discussionsupporting

confidence: 91%

Effects of Irrigating with Brackish Water on Soil Moisture, Soil Salinity, and the Agronomic Response of Winter Wheat in the Yellow River Delta

Wang

Pang

2019

Sustainability

View full text Add to dashboard Cite

Water shortages due to low precipitation and seawater intrusion in the Lower China Yellow River Delta have occurred in recent years. Exploiting underground brackish water through well drilling is a potential alternative way to satisfy the demand for agricultural irrigation. However, how to successfully use brackish water for irrigation has become a new problem to solve. A two-year field experiment was conducted in this typical saline-alkaline region to investigate the effects of irrigating with brackish water on the soil water-salt dynamics, and the physiological response of winter wheat to drought-salt stress. The experiment was laid out in a randomized block design with three replications according to the quantity (160 mm and 240 mm) and quality (fresh water and brackish water with a salt concentration of 3 g L-1) of irrigation water: T1 was 240 mm of fresh water, T2 was 160 mm of fresh water, T3 was 80 mm of fresh water and 160 mm of brackish water, and T4 was 80 mm of fresh water and 80 mm of brackish water. The results showed that the soil moisture of T3 was almost the same as T1 after the harvest of winter wheat each year, therefore, irrigating with brackish water can maintain soil moisture while saving fresh water resources. After two years, the soil salinity of each treatment increased by 0.307, 0.406, 0.383, and 0.889 g kg-1, respectively. During the jointing-flowering stage, salt stress has a significant inhibitory effect on photosynthesis; T3 and T4 were lower than T1 and T2 in terms of plant height and dry weight. During the filling stage, because the effect of drought stress is more serious than that of salt stress, the photosynthesis of T3 was greater than that of T2 and T4. For both years, the yield of crops followed the rank order T1 > T3 > T2 > T4. Compared with irrigating with fresh water in T1, T3 changed the second and third irrigation into brackish water, however we did not find that soil salinity increased significantly, and this treatment was able to ensure crop growth during the filling stage. Therefore, the combination of fresh water (80 mm), then brackish water (80 mm), then brackish water (80 mm) is a feasible irrigation strategy in China's Yellow River Delta for winter wheat.

show abstract

Section: Discussionsupporting

confidence: 91%

Effects of Irrigating with Brackish Water on Soil Moisture, Soil Salinity, and the Agronomic Response of Winter Wheat in the Yellow River Delta

Wang

Pang

2019

Sustainability

View full text Add to dashboard Cite

show abstract

“…The lower values of COD and BOD5 in the surface water relative to its values in the leachates indicates higher values of dissolved oxygen in the river relative to the leachates samples from the dumpsites. Present findings revealed that the leachates may be potential source of adjacent water sources contamination, also previous findings documented that the leachates are one of the main sources of river water contamination (Ayandiran et al, 2018;Camaño Silvestrini et al, 2019;Deng et al, 2019;Hobson et al, 2018;Kang et al, 2019;Kayembe et al, 2018;Mor et al, 2018;Qu et al, 2019;Rai et al, 2019;Rezapour et al, 2018;Scandelai et al, 2018;Tanikawa et al, 2018;Wu et al, 2018;Xiong et al, 2018;Xu et al, 2018;Yuan et al, 2019;Zhao et al, 2018).…”

Section: Resultssupporting

confidence: 74%

Leachates and physicochemical characteristics of Rumuodumaya dumpsites, Niger-Delta, Nigeria

Int¹

2019

Preprint

View full text Add to dashboard Cite

The physicochemical characteristics and heavy metal levels of leachates at the Rumuodumaya dumpsites and the surface water of its adjacent river was investigated by appropriate field instrument for in situ measurement, standard procedures and AGILENT 55B spectra for the heavy metals. The results from the dumpsites and surface water of the river generally indicate that as of the time of analysis, there is no serious threat to its immediate environment except the nickel concentrations in the dumpsites and surface water of the river, respectively and whose values were beyond the recommended limit of WHO/USEPA (0.05 mg/L) for safe drinking water. The trend of the results also indicates that the dumpsites are sources of numerous soil and water pollutants capable of depleting oxygen levels in the river and this could pose several and serious health risk to humans and aquatic life. Adequate solid waste disposal technique should be adopted by the appropriate agency to forestall this threat to the Rumuodumaya environment.

show abstract

“…Freshwater shortage is an important factor that limits the sustainable development of agriculture. Consequently, the rational use of saline water irrigation is crucial for alleviating freshwater shortages in arid areas 22,23 . However, the long-term use of saline or brackish water irrigation may cause salt accumulation in root zones and increase the risk of soil salinization, thereby altering soil physicochemical properties.…”

Section: Discussionmentioning

confidence: 99%

Response of ammonia-oxidizing Bacteria and Archaea to long-term saline water irrigation in alluvial grey desert soils

Guo

Liang

et al. 2020

Sci Rep

View full text Add to dashboard Cite

Soil nitrification via ammonia oxidation is a key ecosystem process in terrestrial environments, but little is known of how increasing irrigation of farmland soils with saline waters effects these processes. We investigated the effects of long-term irrigation with saline water on the abundances and community structures of ammonia-oxidizing bacteria (AOB) and archaea (AOA). Irrigation with brackish or saline water increased soil salinity (EC 1:5 ) and NH 4 -n compared to irrigation with freshwater, while no 3 -n, potential nitrification rates (PNR) and amoA gene copy numbers of AOA and AOB decreased markedly under irrigation regimes with saline waters. Moreover, irrigation with brackish water lowered AOA/ AOB ratios. PNR was positively correlated with AOA and AOB amoA gene copy numbers across treatments. Saline and brackish water irrigation significantly increased the diversity of AOA, as noted by Shannon index values, while saline water irrigation markedly reduced AOB diversity. In addition, irrigation with brackish or fresh waters resulted in higher proportions of unclassified taxa in the AOB communities. However, irrigation with saline water led to higher proportions of unclassified taxa in the AoA communities along with the Candidatus Nitrosocaldus genus, as compared to soils irrigated with freshwater. AOA community structures were closely associated with soil salinity, NO 3 − n, and pH, while AOB communities were only significantly associated with NO 3 − N and pH. These results suggest that salinity was the dominant factor affecting the growth of ammonia-oxidizing microorganisms and community structure. These results can provide a scientific basis for further exploring the response mechanism of ammonia-oxidizing microorganisms and their roles in nitrogen transformation in alluvial grey desert soils of arid areas.index showed a significant (P < 0.001) opposite relationship. In addition, the SW treatment soils had a significantly lower AOB Shannon index (P = 0.002) compared to the FW soils, but a significantly higher Simpson index value (P = 0.003). The BW treatment did not have a significant effect on AOB diversity index. Scientific RepoRtS | (2020) 10:489 | https://doi.Scientific RepoRtS | (2020) 10:489 | https://doi.org/10.1038/s41598-019-57402-xwww.nature.com/scientificreports www.nature.com/scientificreports/ Nitrosomonadaceae and Nitrosopumilaceae were the two most dominant families in the dataset. The relative abundances of Nitrosomonadaceae were significantly greater in the FW treatment soils than in those of the BW and SW treatments (P < 0.001). However, no significant differences were observed for the relative abundances of Nitrosopumilaceae among the FW, BW, and SW treatment soils. Nitrosopumilus and Nitrosospira were the two most dominant genera in the sequencing datasets. The relative abundances of Nitrosospira were significantly higher in the FW treatment soils than in those of the BW and SW treatments (P < 0.001). However, no significant differences were observed for the relative abundances of Ni...

show abstract

Effects of deficit irrigation with saline water on soil water-salt distribution and water use efficiency of maize for seed production in arid Northwest China

Cited by 85 publications

References 25 publications

Effects of Irrigating with Brackish Water on Soil Moisture, Soil Salinity, and the Agronomic Response of Winter Wheat in the Yellow River Delta

Effects of Irrigating with Brackish Water on Soil Moisture, Soil Salinity, and the Agronomic Response of Winter Wheat in the Yellow River Delta

Leachates and physicochemical characteristics of Rumuodumaya dumpsites, Niger-Delta, Nigeria

Response of ammonia-oxidizing Bacteria and Archaea to long-term saline water irrigation in alluvial grey desert soils

Contact Info

Product

Resources

About