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

Li, Ting; Liu, Jianliang; Wang, Shaojie; Zhang, Yue; Zhan, Ai; Li, Shiqing

doi:10.2134/agronj2017.09.0547

Cited by 30 publications

(12 citation statements)

References 35 publications

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“…The application of slow released fertilizer has been proven to increase the grain yield and NUE of maize compared with conventional urea by numerous studies (Diez et al, 1994;Hu et al, 2013;Zhao et al, 2013;Zheng et al, 2016Zheng et al, , 2017. Increased plant population density could increase grain number and decrease grain weight in maize production (Li et al, 2018;Poneleit & Egli, 1979;Rossini, Maddonni, & Otegui, 2011), and N starvation exerted negative effects on final kernel numbers and weight (Boomsma, Santini, Tollenaar, & Vyn, 2009;Hokmalipour et al, 2010;Li et al, 2018). Our results indicated that SF application was better than CF in increasing F I G U R E 7 Relationships between nitrogen accumulation at maturity, pre-silking N, post-silking N, specific leaf N and grain yield.…”

Section: Discussionmentioning

confidence: 99%

Effects of fertilizer management strategies on maize yield and nitrogen use efficiencies under different densities

Wang

et al. 2020

Agronomy Journal

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Rational plant density and fertilizer management are important practices to improve maize (Zea mays L.) yield and nutrient use efficiency. Previous research indicated that plant density and fertilization had positive interaction on maize yield and N utilization. The research studied on the interactive effects of slow‐released fertilizer (added amino acid polymer biological preparation) and density on maize yield and nitrogen use efficiencies (NUEs). A 2‐yr field experiment with varieties Suyu29 (SY29) or Suyu30 (SY30) was conducted using a split‐split plot design. Three densities (6.0, 7.5, and 9.0 × 104 plants per ha) and three fertilization modes (0F‐no fertilizer, SF‐one‐time application of slow‐released fertilizer, and CF‐twice application of conventional fertilizer) were assigned. Results indicated that grain yields and NUEs of SF under 7.5 × 104 plants per ha were the highest both in SY29 and SY30. Compared with CF under 7.5 × 104 plants per ha, SF could improve pre‐ and post‐silking N uptake and promote N translocation from stalk and leaf into grain, which increased its contribution efficiency to grain N content and obtained higher NUE. The average N partial productivity, N agronomic efficiency, N recovery efficiency, and N absorption efficiency of SF were 5.3, 9.9, 20.1, and 11.4% higher than CF under 7.5 plants × 104 plants per ha. Increasing plant density, the grain yield, total N accumulation, and NUEs initially increased and then decreased both in SF and CF. These results suggest that one‐time application of SF combined with appropriate density could increase maize yield and NUE under our experiment condition.

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Section: Discussionmentioning

confidence: 99%

Effects of fertilizer management strategies on maize yield and nitrogen use efficiencies under different densities

Wang

et al. 2020

Agronomy Journal

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“…However, the importance of roots in supporting intensive cropping systems in which plant density is high and fertilizers are largely available has been considerably less heavily studied and discussed (Mi, Chen, Yuan, & Zhang, 2016). As the soil hydrothermal conditions, WUE and maize yield were significantly improved under FM (Li et al., 2018; Liu, Li, Chen, Yang, & Chen, 2010a, 2010b, 2014), and the biomass allocation in roots and shoots should also be different. Some researchers found that FM had significant effects on the development of maize roots (Gao, Xie, Jiang, Wu, & Niu, 2014; Wang et al., 2018; Xiao et al., 2016b).…”

Section: Introductionmentioning

confidence: 99%

High‐yield characteristics and root support of rain‐fed maize under film mulching

Liang

Yuan

et al. 2020

Agronomy Journal

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Full ridge-furrow plastic film-mulching (FM) is an important drought-resistant and high-yield agricultural method employed in the Loess Plateau. The characteristics of FM, which are closely related to high-efficiency resource utilization and root-shoot coordination of crops, may serve as references for yield increases in a broad range of farmland types. However, few studies have investigated this topic. A 2-yr field study was conducted in the rain-fed arid farmland of the Loess Plateau experimental station to investigate the canopy development and root support of FM maize (Zea mays L.). Our results showed that FM not only accelerated canopy growth in the vegetative phase and prolonged the reproductive phase but also promoted N and biomass accumulation in leaves after flowering. The leaf N concentration and biomass in FM maize increased by 6.2-24.7% and 16.9-29.3%, respectively, during R1 (silking)-R3 (milk) stage compared with the control. However, although the total root biomass decreased, and less RL (root length) and root surface area were distributed in deep soil, FM reduced the decline rate of RL and surface area during the R1-R3 period by 20.5 and 15.2% in topsoil, respectively, compared to the control. Moreover, FM significantly increased the root efficiency of leaf nitrogen (REN) absorption by 66.7-84.6% at the R1 stage and increased the water use efficiency (WUE) of grain yield by 20.3-69.4%.In conclusion, maize plants under FM had strengthened photosynthetic organs with high efficiency and long-lasting root support in a prolonged reproductive phase.Abbreviations: CK, control treatment; FM, full ridge−furrow with plastic film-mulching method; PT, planting time; R1, silking stage; R3, milk stage; R6, mature stage; REN, root efficiency for nitrogen absorption, that is, shoot nitrogen absorption per unit of root length; RL, root length; SR, shoot/root biomass ratio; SW, soil water content; V6, 6-leaf stage; WUE, water use efficiency.

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“…In semi-arid areas, N fertilization was shown to increase crop production under dry conditions with poor water supply [10,11]. However, crop yield may be decreased with the excessive application of N fertilizer [12]. In addition, N fertilizer applied more than crop need can lead to nitrate accumulation in the soil profile and degrade both surface and groundwater resources, resulting in eutrophication and non-potable water supplies [13,14].…”

Section: Introductionmentioning

confidence: 99%

Interactive Effects of Water and Fertilizer on Yield, Soil Water and Nitrate Dynamics of Young Apple Tree in Semiarid Region of Northwest China

et al. 2019

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Exploring the interactive effect of water and fertilizer on yield, soil water and nitrate dynamics of young apple tree is of great importance to improve the management of irrigation and fertilization in the apple-growing region of semiarid northwest China. A two-year pot experiment was conducted in a mobile rainproof shelter of the water-saving irrigation experimental station in Northwest A&F University, and the investigation evaluated the response of soil water and fertilizer migration, crop water productivity (CWP), irrigation water use efficiency (IWUE), partial factor productivity (PFP) of young apple tree to different water and fertilizer regimes (four levels of soil water: 75%–85%, 65%–75%, 55%–65% and 45%–55% of field capacity, designated W1, W2, W3 and W4, respectively; three levels of N-P2O5-K2O fertilizer, 30-30-10, 20-20-10 and 10-10-10 g plant−1, designated F1, F2 and F3, respectively). Results showed that F1W1, F2W1 and F3W1 had the highest average soil water content at 0~90 cm compared with the other treatments. When fertilizer level was fixed, the average soil water content was gradually increased with increasing irrigation amount. For W1, W2, W3 and W4, high levels of water content were mainly distributed at 50~80 cm, 40~70 cm, 30~50 cm and 10~30 cm, respectively. There was no significant difference in soil water content at all fertilizer treatments. However, F1 and F2 significantly increased soil nitrate-N content by 146.3%~246.4% and 75.3%~151.5% compared with F3. The highest yield appeared at F1W1 treatment, but there was little difference between F1W1 and F2W2 treatment. F2W2 treatment decreased yield by 7.5%, but increased IWUE by 11.2% compared with F1W1 treatment. Meanwhile, the highest CWP appeared at F2W2 treatment in the two years. Thus, F2W2 treatment (soil moisture was controlled in 65–75% of field capacity, N-P2O5-K2O were controlled at 20-20-10 g·tree−1) reached the best water and fertilizer coupling mode and it was the optimum combinations of water and fertilizer saving.

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

Cited by 30 publications

References 35 publications

Effects of fertilizer management strategies on maize yield and nitrogen use efficiencies under different densities

Effects of fertilizer management strategies on maize yield and nitrogen use efficiencies under different densities

High‐yield characteristics and root support of rain‐fed maize under film mulching

Interactive Effects of Water and Fertilizer on Yield, Soil Water and Nitrate Dynamics of Young Apple Tree in Semiarid Region of Northwest China

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