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

Li, Guanghao; Wang, Long; Li, Long; Lu, Dalei; Lu, Wei

doi:10.1002/agj2.20075

Cited by 11 publications

(5 citation statements)

References 47 publications

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“…In addition to differences among maize hybrids for plant height, soil compaction also restricted the plants from gaining height. These results are in accordance with the earlier findings of Li et al (2020), who reported that various hybrids responded differently in plant height.…”

Section: Discussionsupporting

confidence: 93%

“…As the crop roots penetrate upto 12 cm deep in search of nutrients and water at the tasseling stage, increasing bulk density will affect this intake by roots, thereby causing a delay in days to taselling. Anjum et al (2018)and Li et al (2020) also reported a change in days to tasseling of maize with different bulk densities of soil. Wang et al (2022) also reported a negative correlation between hybrid maize yield with the increase in soil compactness.…”

Section: Discussionmentioning

confidence: 90%

“…The nutrient uptake efficiency of maize plants is enhanced by decreasing soil bulk densities. Nitrogen recovery and Nitrogen absorption by root are also proportional to the soil bulk densities (Li et al, 2020). Soil compaction has long been known to cause most restrictions and yield reductions in many crops, especially in Maize (Ramazan et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Phenological and yield components response of major exotic maize varieties to different levels of soil bulk densities

Khattak

Hanif

Jaddon

et al. 2022

Sains Tanah J. Soil Sci. Agroclimatology

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Maize is the second staple food and a major cereal crop in Pakistan, but its actual yield is 25-30% less than the potential because of high soil bulk densities. Three exotic maize varieties (Baber, Pioneer-30P45, and Syngenta-6621) were evaluated under the three different soil bulk densities of 1.00 - 1.30, 1.30 - 1.60, and 1.60- 1.90 g.cm-3. Nine treatments were replicated three times, making 27 pots experiments under complete randomized design were tested. Results showed that bulk density significantly (α < 0.05) affected all the parameters of the crops except the number of days to emergence. The fewest number of days to emergence (8.4), tasseling (60.9), silking (66.9), maturity (91.9), leaves per plant (6.3), as well as the lowest shoot thickness (0.49 cm) were obtained under the 1.00 - 1.30 g.cm-3 density. This density also produced the tallest plants (174.7 cm), highest stover (5938.7 kg ha-1), grain yields (1551 kg ha-1), and harvest index (21.9 %). Conversely, most days to emergence, tasseling, silking, and maturity occurred at the bulk density of 1.60 - 1.90 g.cm-3, which also produced the shortest plants and the lowest grain stover and grain yields as well as the harvest index. It was concluded that increasing bulk density levels increase the number of days to tasseling, silking, maturity, and leaves per plant and shoot thickness. Syngenta 6621 was found late in maturity among the hybrids but produced superior stover and grain yields.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Phenological and yield components response of major exotic maize varieties to different levels of soil bulk densities

Khattak

Hanif

Jaddon

et al. 2022

Sains Tanah J. Soil Sci. Agroclimatology

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“…This compound fertilizer was added to an amino acid polymer biological preparation which had negative charges with strong adsorption. The biological preparation could form amino acid, which acts as a biostimulant after metabolism [ 25 ]. Five treatments were set at two sites, including F0 (no fertilization), 3 optimized fertilization practices (F1, F2, and F3), and F4 (control treatment).…”

Section: Methodsmentioning

confidence: 99%

Optimized Fertilization Practices Improved Rhizosphere Soil Chemical and Bacterial Properties and Fresh Waxy Maize Yield

Zhang

et al. 2022

Metabolites

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The interactive mechanism of root and soil for achieving high and stable yield of maize is still unclear. Synchronizing soil nutrient supply with crop requirements by optimizing fertilization is effective cultivation measures to improve maize yield. In this study, field trials were conducted to investigate the dynamic changes of optimized fertilization on chemical and bacterial properties in rhizosphere soil, root physiological properties, and yield of fresh waxy maize. Optimized fertilization practices (one-time application of new compound fertilizer at sowing, three-, and six-leaf stages, denoted as F1, F2, and F3), local traditional fertilization (F4), and no fertilization (F0) were set up in 2-year field experiments at two sites. F3 increased the fresh ear (10.2%) and grain (9.4%) yields relative to F4. Optimized fertilization practices increased the abundance and diversity of rhizosphere soil bacterial communities at R3. The enzymatic activities of oxidoreductase, hydrolase, transferase, and lyase in rhizosphere soil under F3 were higher than those in other treatments at R1 and R3. F3 increased the contents of organic matter and total N in rhizosphere soil, as well as the root activities. These findings provide physiological information from underground on optimized fertilization types and stages in enhancing the yield of fresh waxy maize. One-time application of new compound fertilizer at six-leaf stage increased the abundance and diversity of bacterial, organic matter and total N content in rhizosphere soil, enhanced root activity at post-silking stage, and eventually improved yield of fresh waxy maize in southern China.

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“…According to Shao et al ( 2018 ), root length and root number per plant decrease significantly as planting density increases. The increase in planting density not only inhibits the growth, quantity, and quality of maize roots but also reduces nutrient absorption and translocation in maize (Li et al, 2020 ; Gao et al, 2021 ). Therefore, enhancing root physiological characteristics and nutrient absorption capacity in high-density planting for optimal maize growth and high yield has become a significant problem in maize production.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen and Chemical Control Management Improve Yield and Quality in High-Density Planting of Maize by Promoting Root-Bleeding Sap and Nutrient Absorption

Liu

Zhang

Yu³

et al. 2022

Front. Plant Sci.

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High-density planting aggravates competition among plants and has a negative impact on plant growth and productivity. Nitrogen application and chemical control can improve plant growth and increase grain yield in high-density planting. Our experiment explored the effects of nitrogen fertilizer and plant growth regulators on maize root-bleeding sap, phosphorus (P) and potassium (K) accumulation and translocation, and grain yield and quality in high-density planting. We established a field study during the 2017 and 2018 growing seasons, with three nitrogen levels of N100 (100 kg ha−1), N200 (200 kg ha−1), and N300 (300 kg ha−1) at high-density planting (90,000 plants ha−1), and applied Yuhuangjin (a plant growth regulator mixture of 3% DTA-6 and 27% ethephon) at the 7th leaf. Our results showed that N200 application combined with chemical control could regulate amino acid and mineral nutrient concentration delivery rates in root-bleeding sap and improve its sap rate. Also, the treated plant exhibited higher P and K uptake and translocation ability. Furthermore, chemical control and N200 treatment maintained a high level of ribulose-1,5-bisphosphate carboxylase (RuBPCase), phosphoenolpyruvate carboxylase (PEPCase), nitrate reductase (NR), and glutamine synthetase (GS) enzymatic activities in leaves. In addition, plant growth regulator and nitrogen application improved the enzymatic activities of GS, glutamate dehydrogenase (GDH), and glutamic pyruvic transaminase (GPT) and the contents of crude protein, lysine, sucrose, and soluble sugar in grain and ultimately increased maize yield. This study suggests that N200 application in combination with chemical control promotes root vitality and nutrient accumulation and could improve grain yield and quality in high-density planting.

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

Cited by 11 publications

References 47 publications

Phenological and yield components response of major exotic maize varieties to different levels of soil bulk densities

Phenological and yield components response of major exotic maize varieties to different levels of soil bulk densities

Optimized Fertilization Practices Improved Rhizosphere Soil Chemical and Bacterial Properties and Fresh Waxy Maize Yield

Nitrogen and Chemical Control Management Improve Yield and Quality in High-Density Planting of Maize by Promoting Root-Bleeding Sap and Nutrient Absorption

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