Effect of nitrogen fertilization under plastic mulched and non-plastic mulched conditions on water use by maize plants in dryland areas of China

Li, S.X.; Wang, Z.H.; Li, S.Q.; Gao, Yujiao

doi:10.1016/j.agwat.2015.08.004

Cited by 54 publications

(28 citation statements)

References 86 publications

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“…For example, the results in Heyang of Shaanxi province showed that compared with CK, SM increased maize yield significantly29. Similar results also found in Chengcheng, another county in Shaanxi province24. This is because straw mulching effects also depend on the climatic condition11.…”

Section: Discussionsupporting

confidence: 69%

“…In dry years, soil water was used by crops (2012, 2014 and 2015). The maize rooting depth in the Loess Plateau is less than 200 cm and previous studies mainly used 200 cm as the water cycle depth2324 as it is thought that 90% of ET normally comes from this zone25. In our study, the soil water mainly changed in the 0–300 cm soil profile, at depths below 300 cm, it remained nearly constant, with the exception of 2010 when the precipitation during the maize growing season was 543 mm, and the water recharged the soil down to 400 cm.…”

Section: Discussionmentioning

confidence: 99%

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Spring maize yield, soil water use and water use efficiency under plastic film and straw mulches in the Loess Plateau

Lin

Liu

Xue

2016

Sci Rep

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To compare the soil water balance, yield and water use efficiency (WUE) of spring maize under different mulching types in the Loess Plateau, a 7-year field experiment was conducted in the Changwu region of the Loess Plateau. Three treatments were used in this experiment: straw mulch (SM), plastic film mulch (PM) and conventional covering without mulch (CK). Results show that the soil water change of dryland spring maize was as deep as 300 cm depth and hence 300 cm is recommended as the minimum depth when measure the soil water in this region. Water use (ET) did not differ significantly among the treatments. However, grain yield was significantly higher in PM compared with CK. WUE was significantly higher in PM than in CK for most years of the experiment. Although ET tended to be higher in PM than in the other treatments (without significance), the evaporation of water in the fallow period also decreased. Thus, PM is sustainable with respect to soil water balance. The 7-year experiment and the supplemental experiment thus confirmed that straw mulching at the seedling stage may lead to yield reduction and this effect can be mitigated by delaying the straw application to three-leaf stage.

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Section: Discussionsupporting

confidence: 69%

Section: Discussionmentioning

confidence: 99%

Spring maize yield, soil water use and water use efficiency under plastic film and straw mulches in the Loess Plateau

Lin

Liu

Xue

2016

Sci Rep

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“…In 2013 at harvest, the average soil water content in FM was significantly higher at 0-to 60-cm soil depth compared with NM; the opposite situation was observed at 80-to 200-cm soil depth. This can be explained by the favorable temperature-water conditions under the film mulching that supported vigorous plant growth, allowing them to exploit more soil water in deep layers than in NM (Zhou et al, 2009;Li et al, 2015). In 2014, the soil water content at 160-to 200-cm soil depth was higher in NM than in FM.…”

Section: Regression Analysis For Grain Yield and Water Usementioning

confidence: 99%

“…In the present study, the ET was almost identical between FM and NM in 2013. The reason may be that film mulching reduces water loss by evaporation, while it increases water use by transpiration (Lascano et al, 1994;Li et al, 2015). In 2014, FM had a remarkably higher ET than NM due to higher soil water storage prior to planting.…”

Section: Regression Analysis For Grain Yield and Water Usementioning

confidence: 99%

“…Given that film mulching improved water availability (Zhou et al, 2009), the response of grain yield and WUE to N supply may be different under filmmulched and non-mulched growing conditions. A recent study found that grain yield and WUE increased closely with N rate up to 90 kg ha −1 in both film-mulched and non-mulched treatments, the former being 52 and 48% higher, respectively, than the latter; however, the yield of film-mulched maize (~7.5 Mg ha −1 ) remained low (Li et al, 2015). High yields of 14.0 Mg ha −1 have been obtained when maize was grown with film mulching combined with successful N application (Bu et al, 2013).…”

mentioning

confidence: 94%

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Maize Yield Response to Nitrogen Rate and Plant Density under Film Mulching

Liu

Wang

et al. 2018

Agronomy Journal

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However, irrational N application regimes (Liu et al., 2014b; Li et al., 2015) and low plant densities (Liu et al., 2014a) are the key factors limiting the further improvement of crop yield and resource use efficiency in this mulching system. N fertilizer plays a significant role in improving grain yield and WUE (Hernández et al., 2015; Li et al., 2015). Previous research focusing on contrasts in water availability (i.e., rain-fed

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Effects of mulching and maize cultivars on grain yield and photosynthetic characteristics in the Loess Plateau

Wang

Niu

et al. 2020

Agronomy Journal

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Millions of small farmers rely on maize (Zea mays L.) produced in the Loess Plateau of China. The purpose of this study was to find a fine maize variety in the Check Dam and to reveal the reasons for the effects of white plastic film mulch and maize varieties on crop yield and photosynthetic characteristics. Three maize cultivars (Dafeng 26 [DF], Xianyu 335 [XY], and Tianci 19 [TC]) were grown with and without plastic mulch in 2016 and 2017 in Ansai County, Shaanxi Province, China. Results showed that mulch increased grain yield by 10.5% in 2016 and 11.3% in 2017 across all cultivars. Among all cultivars, XY had the highest grain yield under both mulch and no mulch. Grain yield was significantly correlated with soil water content in the 0-20 cm layer. Soil temperature under mulch decreased with increasing soil depth. On average, mulch increased soil temperature from 0.2 to 1.9 • C over the entire growing season. Photosynthetic characteristics were directly determined for all tested maize cultivars. Grain yield was more closely related to photosynthetic rate in July (r = .828, P = .001; n = 12) than in August (r = .617, P = .032; n = 12). Moreover, grain yield was correlated with stomatal conductance and transpiration rate in July and August (r = .913-.928, P < .001; n = 12). Our findings suggest that photosynthetic characteristics were an important index affecting maize grain yield for small farmers using check dams in the Loess Plateau.

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Effect of nitrogen fertilization under plastic mulched and non-plastic mulched conditions on water use by maize plants in dryland areas of China

Cited by 54 publications

References 86 publications

Spring maize yield, soil water use and water use efficiency under plastic film and straw mulches in the Loess Plateau

Spring maize yield, soil water use and water use efficiency under plastic film and straw mulches in the Loess Plateau

Maize Yield Response to Nitrogen Rate and Plant Density under Film Mulching

Effects of mulching and maize cultivars on grain yield and photosynthetic characteristics in the Loess Plateau

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