Grain yield, and nitrogen uptake and translocation of peanut under different nitrogen management systems in a wheat–peanut rotation

Liu, Zhaoxin; Gao, Fang; Li, Ying; Zhao, Jinpeng; Ying, Wang; Wang, Zhaoyi; Li, Yuerong; Li, Xiangdong; Yang, Dongqing

doi:10.1002/agj2.20065

Cited by 6 publications

(5 citation statements)

References 31 publications

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“…The row spacing was >0.45 m, and the plant spacing was >0.30 m. An isolation zone was set up between the test plots to avoid the mass transfer between plots. Reasonable application of nitrogen fertilizer is of great significance for the growth of peanuts because the amount of nitrogen required will vary greatly with the different planting methods, planting conditions, and variety yield, the problem of nitrogen fertilizer amount for peanuts has been a concern to scholar for a long time ( 24 , 25 ). According to different nitrogen rates of biogas slurry, the experimental plots were divided into five groups, including no fertilization, low application rate [8.5 g total nitrogen (TN)/m 2 ·year], European Union application standard (17 g TN/m 2 ·year), domestic average application rate (34 g TN/m 2 ·year) ( 26 ), and excessive application (68 g TN/m 2 ·year).…”

Section: Methodsmentioning

confidence: 99%

Comprehensive Risk Assessment of Applying Biogas Slurry in Peanut Cultivation

et al. 2021

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Biogas slurry, a byproduct of biogas plants, is considered a high-quality bio-organic fertilizer. Despite providing nutrients to crops, biogas slurry may contain a high concentration of heavy metals, leading to food safety problems and endangering human health if such metals are absorbed by plants. Therefore, biogas slurry should undergo systematic risk assessment prior to direct use on farmland to ensure its safety for soils and crops. In this study, the risk of applying biogas slurry in peanut cultivation was comprehensively evaluated. Based on nitrogen contents, different concentrations of biogas slurry were applied in peanut cultivation. The results achieved herein showed that the application of biogas slurry as a nutrient supplier in peanut cultivation would significantly affect the physical and chemical properties of soil and characteristics of the plant and the quality of peanuts. Although the heavy metal content of biogas slurry was within the permitted range, it had potential risks to human health and the environment. Principal component analysis (PCA) showed that biogas slurry was the primary source of heavy metals in soil. After the application of biogas slurry, the contents of As and Hg in the soil increased significantly, which were 11.12 and 26.67 times higher than those in the control soil. The contents of Cu, Zn, Pb, Cd, and As in peanut kernel samples under different levels of biogas slurry application were all lower than the maximum permissible limit set by the Standardization Administration of China. In contrast, the content of Hg in peanut kernels was higher than the maximum permissible limit value of 0.02 mg/kg. Peanut had a higher enrichment capacity of Cd and Zn and a higher migration capacity of Pb. The health risk assessment showed that the long-term consumption of peanuts grown with a high dosage of biogas slurry would be harmful to the health of children aged 2–6 years with a large consumption level.

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Section: Methodsmentioning

confidence: 99%

Comprehensive Risk Assessment of Applying Biogas Slurry in Peanut Cultivation

et al. 2021

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“…Intercropping is a sustainable and intensive cropping pattern that has the advantages of improving crop yields ( Liu et al., 2020 ; Zou et al., 2021 ) and land use efficiency ( Yu et al., 2015 ; Feng et al., 2021 ), inhibiting weeds, and reducing pests and diseases ( Brooker et al., 2015 ; Beillouin et al., 2021 ; Chadfield et al., 2022 ). Many previous studies have confirmed that intercropping of gramineous and leguminous crops has yield advantages, for instance, intercropping of maize and soybean, maize and peanut ( Li et al., 2019 ), and sorghum and soybean ( Wang et al., 2021a ).…”

Section: Introductionmentioning

confidence: 99%

Border row effects improved the spatial distributions of maize and peanut roots in an intercropping system, associated with improved yield

Dong,

Zhao,

Sun

et al. 2024

Front. Plant Sci.

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BackgroundBorder row effects impact the ecosystem functions of intercropping systems, with high direct interactions between neighboring row crops in light, water, and nutrients. However, previous studies have mostly focused on aboveground, whereas the effects of intercropping on the spatial distribution of the root system are poorly understood. Field experiments and planting box experiments were combined to explore the yield, dry matter accumulation, and spatial distribution of root morphological indexes, such as root length density (RLD), root surface area density (RSAD), specific root length (SRL), and root diameter (RD), of maize and peanut and interspecific interactions at different soil depths in an intercropping system.ResultsIn the field experiments, the yield of intercropped maize significantly increased by 33.45%; however, the yield of intercropped peanut significantly decreased by 13.40%. The land equivalent ratio (LER) of the maize–peanut intercropping system was greater than 1, and the advantage of intercropping was significant. Maize was highly competitive (A = 0.94, CR=1.54), and the yield advantage is mainly attributed to maize. Intercropped maize had higher RLD, RSAD, and SRL than sole maize, and intercropped peanut had lower RLD, RSAD, and SRL than sole peanut. In the interspecific interaction zone, the increase in RLD, RSAD, SRL, and RD of intercropped maize was greater than that of intercropped peanut, and maize showed greater root morphological plasticity than peanut. A random forest model determined that RSAD significantly impacted yield at 15–60 cm, while SRL had a significant impact at 30–60 cm. Structural equation modeling revealed that root morphology indicators had a greater effect on yield at 30–45 cm, with interactions between indicators being more pronounced at this depth.ConclusionThese results show that border-row effects mediate the plasticity of root morphology, which could enhance resource use and increase productivity. Therefore, selecting optimal intercropping species and developing sustainable intercropping production systems is of great significance.

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“…Previous study has demonstrated that nitrogen fertilization applied 10 weeks after planting had minimal effects on the shoot and root-rhizome biomass [13]. Liu, Gao, Li, et al [14] reported that the peanut pod yield increased within a certain range of nitrogen application; the yield no longer increased or even declined beyond the optimal nitrogen application rate [15]. Therefore, the impacts of nitrogen supply and utilization vary under different ecological environments.…”

Section: Introductionmentioning

confidence: 99%

Increasing Calcium and Decreasing Nitrogen Fertilizers Improves Peanut Growth and Productivity by Enhancing Photosynthetic Efficiency and Nutrient Accumulation in Acidic Red Soil

et al. 2023

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Excessive nitrogen and insufficient calcium could significantly impact peanut yields. This study investigated the effects of nitrogen and calcium fertilizers on nutrient absorption, utilization, and yield; experiments were conducted using the peanut cultivar from Xianghua 2008 in a split-plot arrangement with two calcium fertilizer levels (Ca0: 0 and Ca1: 568 kg CaO ha−1) in the main plots and six nitrogen fertilizer gradients (N0: 0, N45.0: 45.0, N90.0: 90.0, N112.5: 112.5, N135.0: 135.0, and N157.5: 157.5 kg N ha−1) in subplots between 2015 and 2016 in Changsha, China. We examined the impact of different rates of calcium and nitrogen fertilizers on the net photosynthetic rate (Pn), agronomic traits, dry matter quality, yield and yield composition, nutrient accumulation, and distribution. The combined application of calcium and nitrogen fertilizers significantly affected the yield and yield components, Pn, main stem height, dry matter, and nutrient accumulation. Under the same calcium level, nitrogen application significantly increased the main stem height and Pn and promoted the accumulation of dry matter and nutrients in the plant, particularly in the kernel. Under the same nitrogen treatment, calcium significantly increased Pn and promoted the accumulation of dry matter, calcium, and magnesium. The pod yield increased gradually with an increasing nitrogen application rate (0–112.5 kg ha−1) and peaked at N112.5, increasing by 52.3–138.0% compared with N0. However, excessive nitrogen application (N > 112.5 kg ha−1) decreased the pod yield. Under different nitrogen fertilizer levels, calcium application increased pod yields by 11.5–29.6% by promoting Pn, nutrient uptake, accumulation in the individual plant, and nutrient accumulation in the kernel. Therefore, this study suggested that adjusting the calcium (568 kg ha−1) and nitrogen (112.5 kg ha−1) fertilizer rates significantly improved peanut growth and productivity by enhancing photosynthetic efficiency and nutrient accumulation in calcium-deficient acidic red soil.

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Grain yield, and nitrogen uptake and translocation of peanut under different nitrogen management systems in a wheat–peanut rotation

Cited by 6 publications

References 31 publications

Comprehensive Risk Assessment of Applying Biogas Slurry in Peanut Cultivation

Comprehensive Risk Assessment of Applying Biogas Slurry in Peanut Cultivation

Border row effects improved the spatial distributions of maize and peanut roots in an intercropping system, associated with improved yield

Increasing Calcium and Decreasing Nitrogen Fertilizers Improves Peanut Growth and Productivity by Enhancing Photosynthetic Efficiency and Nutrient Accumulation in Acidic Red Soil

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