Influence of different plastic film mulches and wetted soil percentages on potato grown under drip irrigation

Zhang, Youliang; Wang, Fengxin; Shock, Clinton C.; Yang, Kaijing; Kang, Shaozhong; Qin, Jing-Tao; Li, Sien

doi:10.1016/j.agwat.2016.11.018

Cited by 67 publications

(46 citation statements)

References 50 publications

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“…Although quinoa is a drought-tolerant crop with a low water requirement [12], quinoa seed yields respond positively to irrigation [13][14][15]. As an efficient water-saving irrigation method, drip irrigation has been widely applied in water-limited regions [16][17][18] and could be scientifically scheduled to improve quinoa production. Geerts et al [14], Hirich et al [19], Fghire et al [20], and Rachid et al [21] scheduled quinoa drip irrigation based on estimated crop evapotranspiration (ET C ) while completely ignoring the influence of the actual soil water status.…”

Section: Introductionmentioning

confidence: 99%

Effects of Management Practices on Quinoa Growth, Seed Yield, and Quality

Wang

Shock

et al. 2020

Agronomy

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Quinoa (Chenopodium quinoa Willd.) yield potential needs to be further achieved by good management practices to meet the increasing global demand. Two years of orthogonal field experiments were undertaken to investigate the effects of irrigation onset criteria using soil matric potential (SMP) (−15, −25, and −55 kPa), nitrogen fertilizer rate (80, 160, and 240 kg ha−1), and plant density (20, 30, and 40 plants m−2) on quinoa growth, seed yield, weight, and protein content. Initiating irrigations at an SMP of −15 to −25 kPa achieved significantly (p < 0.05) greater seed yield (37.2 g plant−1), thousand kernel weight (2.25 g), and protein content (21.2%) than −55 kPa (25.2 g plant−1, 2.08 g, and 19.8%, respectively). The 240 kg ha−1 nitrogen rate had significantly (p < 0.05) greater thousand kernel weight (2.26 g) and protein content (21.3%) than 80 (2.07 g and 19.5%, respectively) and 160 kg ha−1 (2.14 g and 20.7%, respectively). The yield under 20 plants m−2 reached 39.5 g plant−1, which was 13.5 g plant−1 higher than 40 plants m−2 (p < 0.05). The quinoa consumed most of the available nitrogen in the soil (410–860 kg ha−1), indicating that quinoa should be part of a sound crop rotation program.

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Section: Introductionmentioning

confidence: 99%

Effects of Management Practices on Quinoa Growth, Seed Yield, and Quality

Wang

Shock

et al. 2020

Agronomy

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“…In the early growing season (seeding to emergence), soil evaporation (E) is the major cause of ET (Zhao et al, 2015), and the plastic film mulching applied to NT2-NT6 was able to significantly retain the soil moisture and, thus, decrease soil evaporation (Jia et al, 2006). However, the differences in the cumulative ET, between NT1 and the other plots, were quite small after the mid-growing season, most likely because with the plant canopy development, crop transpiration became the major portion of ET, and the influence of plastic film on ET diminished (Zhang et al, 2017;Qin et al, 2014;Jia et al, 2006). Another influence that may have decreased the evapotranspiration at NT1 after the mid-growing season is cutting.…”

Section: Accuracy Of the Estimated Etmentioning

confidence: 99%

“…For example, not even the site-specific amount of irrigation can be determined accurately: the two most common methods of measuring irrigation water -water meters or indirect methods -pose both economic and operational challenges to water managers, due to the wide spatial distribution of small fields throughout rural areas (Folhes et al, 2009). Measurement of deep percolation is also difficult (Bethune et al, 2008;Odofin et al, 2012), and reliable data are rare in practice; thus, percolation is often calculated as a residual of the water balance, e.g., Zhang et al (2014) estimated the deep percolation in an irrigated cropland of the Kaidu River-Kongqi River basin using such a water balance approach. ET is another source of uncertainty inherent in water balance estimates (Dolman and De Jeu, 2010), and its estimation at the field scale is usually obtained through the application of mathematical models; it is commonly calculated by relying on reference ET (ET 0 ) or potential ET (PET) (Allen et al, 2011;Suleiman and Hoogenboom, 2007;Wang and Dickinson, 2012;Ibrom et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Quantification of soil water balance components based on continuous soil moisture measurement and the Richards equation in an irrigated agricultural field of a desert oasis

Li¹,

Liu²,

Zhao³

et al. 2019

Hydrol. Earth Syst. Sci.

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Abstract. An accurate assessment of soil water balance components (SWBCs) is necessary for improving irrigation strategies in any water-limited environment. However, quantitative information on SWBCs is usually challenging to obtain, because none of the components (i.e., irrigation, drainage, and evapotranspiration) can be easily measured under actual conditions. Soil moisture is a variable that integrates the water balance components of land surface hydrology, and the evolution of soil moisture is assumed to contain the memory of antecedent hydrologic fluxes, and can thus be used to determine SWBCs from a hydrologic balance. A database of soil moisture measurements from six experimental plots with different treatments in the middle Heihe River basin of China was used to test the potential of a such a database for estimating SWBCs. We first compared the hydrophysical properties of the soils in these plots, such as vertical saturated hydraulic conductivity (Ks) and soil water retention features, for supporting SWBC estimations. We then determined evapotranspiration and other SWBCs using a method that combined the soil water balance method and the inverse Richards equation (a model of unsaturated soil water flow based on the Richards equation). To test the accuracy of our estimation, we used both indirect methods (such as power consumption of the pumping irrigation well and published SWBCs values at nearby sites) and the water balance equation technique to verify the estimated SWBCs values, all of which showed good reliability with respect to our estimation method. Finally, the uncertainties of the proposed methods were analyzed to evaluate the systematic error of the SWBC estimation and any restrictions regarding its application. The results showed significant variances among the film-mulched plots in both the cumulative irrigation volumes (652.1–867.3 mm) and deep drainages (170.7–364.7 mm). Moreover, the un-mulched plot had remarkably higher values in both cumulative irrigation volumes (1186.5 mm) and deep drainages (651.8 mm) compared with the mulched plots. Obvious correlation existed between the volume of irrigation and that of drained water. However, the ET demands for all of the plots behaved pretty much the same, with the cumulative ET values ranging between 489.1 and 561.9 mm for the different treatments in 2016, suggesting that the superfluous irrigation amounts had limited influence on the accumulated ET throughout the growing season due to the poor water-holding capacity of the sandy soil. This work confirmed that relatively reasonable estimations of the SWBCs in coarse-textured sandy soils can be derived by using soil moisture measurements; the proposed methods provided a reliable solution over the entire growing season and showed a great potential for identifying appropriate irrigation amounts and frequencies, and thus a move toward sustainable water resources management, even under traditional surface irrigation conditions.

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“…Plastic film mulch has been widely used in agriculture, especially in arid and semiarid regions, since it can save soil water by reducing evaporation [1] and optimize the light and thermal environments for crops [2][3][4][5][6][7][8][9][10][11]. Accordingly, plastic film mulching can improve seed emergence [12,13], root growth [14,15], nutrient uptake [16], stem elongation [5,11], final yield and water use efficiency [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Modeling the Interaction of Plastic Film Mulch and Potato Canopy Growth with Soil Heat Transport in a Semiarid Area

et al. 2020

Self Cite

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Plastic film mulch is an important agricultural technology to reduce water evaporation and modify the soil thermal conditions for crop production. The optical properties of plastic film mulch and the crop canopy growth are both key factors impacting soil heat transport in the soil-film-canopy-atmosphere ecosystem. In this study, a process-oriented model was developed to better understand the interaction among the plastic film mulch, potato (Solanum tuberosum L.) canopy growth, and soil thermal conditions. Canopy growth, photosynthetically active radiation transmittance, net radiation, soil heat flux, and temperature were monitored in a two-year plastic mulch field experiment in Wuwei (Gansu Province, China). Results showed that the simulation of daily soil surface temperature had a good performance with 2.8 and 1.5 °C of root mean square error (RMSE) for the transparent film mulch (TM) and black film mulch (BM), respectively. Moreover, the simulation of the daily net radiation and soil heat flux model indicated reasonable fluctuations with potato phenological development with the daily R2 ranging from 0.89 to 0.98 in 2014 and 2015 for the TM and BM treatments. It was shown that the canopy temperature under BM was greater than that in TM treatment, and the maximum value difference could be up to 7 °C during the early potato growing period, which implied that the BM may perform better in modifying the canopy thermal condition. The model could provide heat distribution information for plastic film choosing in potato field to avoid heat stress.

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Influence of different plastic film mulches and wetted soil percentages on potato grown under drip irrigation

Cited by 67 publications

References 50 publications

Effects of Management Practices on Quinoa Growth, Seed Yield, and Quality

Effects of Management Practices on Quinoa Growth, Seed Yield, and Quality

Quantification of soil water balance components based on continuous soil moisture measurement and the Richards equation in an irrigated agricultural field of a desert oasis

Modeling the Interaction of Plastic Film Mulch and Potato Canopy Growth with Soil Heat Transport in a Semiarid Area

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