Effects of deep vertical rotary tillage on dry matter accumulation and grain yield of summer maize in the Huang-Huai-Hai Plain of China

Zhai, Lichao; Xu, Ping; Zhengbin, Zhang; Li, Shaokun; Xie, Ruizhi; Zhai, Liang; BenHui, Wei

doi:10.1016/j.still.2017.03.013

Cited by 87 publications

(52 citation statements)

References 40 publications

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“…However, the SS + I treatment enhanced the DMA and increased the contribution of DMA to the grain at the post-silking stage. This phenomenon may occur due to the higher gLAI and P n in the grain-filling stage, accompanied by an increase in the grain-filling rate in the later reproductive stage and longer grain-filling duration, especially the middle grain-filling period, which resulted in the higher DMA at the post-silking stage and had a strong influence on the yield formation, which is consistent with the results of Zhai [1]. However, long-term RT treatment caused high soil bulk density, which affects the soil microbial populations and enzyme activities and limits both root growth and uptake of moisture and nutrients, ultimately affecting crop growth and productivity [18,22,38].…”

Section: Subsoiling Practice To Increase Grain Yield and Wuesupporting

confidence: 90%

“…Optimized tillage practices can alter the soil environment by facilitating both the physical and chemical characteristics of the soil, thereby improving the root function and increasing crop biomass [1,17]. The gLAI is an important indicator of canopy architecture at different growth stages, and a longer gLAI duration at the post-silking period is one of several morphophysiological traits associated with the improvement of maize yields [30].…”

Section: Subsoiling Practice To Improve Glai and Leaf Photosyntheticmentioning

confidence: 99%

“…The Huang-Huai-Hai (HHH) farming region is one of the most important maize-producing regions in China, accounting for 35.3% of China's total maize yield from 1995 to 2007 [1][2][3]. Anhui Province is located in the southern HHH Plain.…”

Section: Introductionmentioning

confidence: 99%

“…Anhui Province is located in the southern HHH Plain. Shallow rotary tillage (RT) before the sowing of winter wheat and no-tillage of summer maize constitute the main cropping practices in this region [1,4,5]. However, the agricultural production in Anhui Province is mainly rainfed, and changes in the climate and variation in the annual and seasonal distribution of precipitation have affected water resources; this is threatening summer maize production [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…In the semi-arid north China Plain, eleven years of no tillage has enhanced the mean percentage of macroaggregates and the macroporosity, particularly in dry years, and increased the soil organic matter and available nutrients in the top 10 cm soil layer [11]. However, in the southern HHH Plain which is characterized by yellow cinnamon soil, the uneven distribution of rainfall and no tillage in the long term may have adverse effects, including increased soil bulk density (SBD) in the top 10-20 cm soil layer and a reduction in the air-filled pore space, which prevents the infiltration and storage of water and aggravates water stress [1,3,[12][13][14] especially in very wet seasons, which results in a decrease in the grain yield [10]. Moreover, topsoil is usually too loose to retain soil moisture under RT [15,16].…”

Section: Introductionmentioning

confidence: 99%

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Subsoiling Improves the Photosynthetic Characteristics of Leaves and Water Use Efficiency of Rainfed Summer Maize in the Southern Huang-Huai-Hai Plain of China

Wang

Zhang

et al. 2020

Agronomy

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In the southern Huang-Huai-Hai (HHH) region, China, maize production is frequently threatened by waterlogging at the seedling stage and by drought at the big flare stage. A two-year field experiment was performed to explore whether subsoiling (SS) in the winter wheat season could improve the photosynthetic capacity and increase the water use efficiency (WUE) of summer maize using the variety, Luyu9105. A split design was adopted in the experiment. The main plots used tillage practices, including SS and rotary tillage (RT). The subplots consisted of two irrigation methods, i.e., applied supplemental irrigation at the big flare stage (I) and no irrigation at the big flare stage (NI). The results showed that the SS treatment significantly increased soil water content (SWC) in the 40–60 cm soil layer. The SS treatment improved green leaf area index (gLAI) by 15.1%–30.2%, and enhanced the ear-leaf net photosynthetic rate (Pn), stomatal conductance (gs), intercellular CO2 concentration (ci) and transpiration rate (Tr), and was accompanied by an increase in the grain-filling duration (T) by 5 days and the mean grain-filling rate (Va). The SS treatment decreased the stomatal limitation (Ls), indicating that RT treatment, which was under lower SWC, led to a decrease in Pn. Applied supplemental irrigation under RT treatment was able to compensate for the growth of leaves, but could not reverse the decreasing trend in the gLAI. Ultimately, the SS treatment improved WUE by 9.1%–9.9%, and increased grain yields by 10.0%–29.3%. Therefore, this study showed that in the southern Huang-Huai-Hai Plain, which has a yellow cinnamon soil type, the practice of SS can improve the photosynthetic characteristics of leaves and WUE of rainfed summer maize.

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Section: Subsoiling Practice To Increase Grain Yield and Wuesupporting

confidence: 90%

Section: Subsoiling Practice To Improve Glai and Leaf Photosyntheticmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Subsoiling Improves the Photosynthetic Characteristics of Leaves and Water Use Efficiency of Rainfed Summer Maize in the Southern Huang-Huai-Hai Plain of China

Wang

Zhang

et al. 2020

Agronomy

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Shade stress decreased maize grain yield, dry matter, and nitrogen accumulation

et al. 2020

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Shade stress severely limits plant growth and crop productivity. This study investigated the relationship between shade stress and nitrogen (N) accumulation in maize at different growth stages. Field experiments were conducted in 2015 and 2016 with three shading treatments: from emergence stage (VE) to physiological maturity (R6) (whole‐season shade), from six‐leaf (V6) to tassel stage (VT) (midseason shade), and from VT to R6 (late‐season shade). Ambient sunlight was used as control (CK). Two hybrids, Zhengdan958 (ZD958) and Denghai 605 (DH605), were used. This study focused on accumulation and partition of dry matter (DM) and N based on the above treatments. Shading reduced DM and N accumulation of maize, which decreased yield. In addition, 15N stable isotope tracing revealed that shading disrupted N accumulation, partitioning, and remobilization in different organs. The contents of grain 15N in whole‐season shade, midseason shade, and late‐season shade from ZD958 decreased by 60, 28, and 50%, respectively, compared with those in CK, and DH605 decreased by 70, 32, and 51%, respectively. Our results indicate that yield decline can be mainly attributed to DM and that N accumulation and remobilization were disrupted by shading at different maize growth stages. Shading during the vegetative stage and reproductive stage reduced N accumulation, and shading during the reproductive stage mainly promoted N transport from other organs to grain, which mitigated some of the effects of reduced N absorption.

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Porous‐fiber module increases infiltration and reduces runoff

Qin

Liu

et al. 2020

Agronomy Journal

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The porous-fiber module (PFM) is an advanced product used for rainfall regulation and storage. Most studies focus on the characteristics of its constituent material while ignoring the impacts of PFM application on infiltration and runoff. In this study, several factors were comprehensively considered in the field control simulated rainfall experiments conducted on bare land, including two types of rainfall intensities, four PFM volumes, and two arrangements of the PFM, to evaluate the impacts. The experiments consisted of measuring soil water content variation, surface runoff of each treatment plot, and the cumulative infiltration obtained by water balance. The results demonstrated that the effect of PFM volume on infiltration and runoff was much greater than that of the PFM arrangement. The addition of PFM could improve the water-holding capacity of soil; this effect initially strengthened and subsequently weakened with the increase in the PFM volume. The PFM embedding increased the cumulative infiltration of the experimental plots by 5.1-79.2%, delayed the runoff start time by 0-20 min, weakened the peak by 13.6-51.1%, and reduced the runoff-yielding amount by 11.23-62.53%, compared with those of the control plot. These effects were enhanced as PFM volume increased. An empirical formula, presented as the theoretical influence of PFM volume on the product of the cumulative infiltration multiplied by the Philip model derived by the control plot, was further established for simulating the infiltration process with various PFM volumes.

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Effects of deep vertical rotary tillage on dry matter accumulation and grain yield of summer maize in the Huang-Huai-Hai Plain of China

Cited by 87 publications

References 40 publications

Subsoiling Improves the Photosynthetic Characteristics of Leaves and Water Use Efficiency of Rainfed Summer Maize in the Southern Huang-Huai-Hai Plain of China

Subsoiling Improves the Photosynthetic Characteristics of Leaves and Water Use Efficiency of Rainfed Summer Maize in the Southern Huang-Huai-Hai Plain of China

Shade stress decreased maize grain yield, dry matter, and nitrogen accumulation

Porous‐fiber module increases infiltration and reduces runoff

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