Effects of maize‖peanut intercropping on photosynthetic characters and yield forming of intercropped maize

Nianyuan, 焦念元 Jiao; Tangyuan, 宁堂原 Ning; Mengke, 杨萌珂 Yang; Guozhan, 付国占 Fu; Fei, 尹飞 Yin; Guowei, 徐国伟 Xu; Zengjia, 李增嘉 Li

doi:10.5846/stxb201207311087

Cited by 15 publications

(5 citation statements)

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“…The yield-increasing benefits of maize in interand mixed cropping have been discussed in detail. In terms of morphological structure, the maize inter-and mixed cropping system facilitated the formation of a three-dimensional canopy structure and different intercropping row ratios and planting densities brought differences in light distribution, which improved the ventilation and light transmittance and increased CO 2 concentration in the growth space [53][54][55]. In terms of physiology, inter-and mixed cropping mode increased the chlorophyll content, leaf area index, and photosynthetic rate of maize [19,22].…”

Section: Discussionmentioning

confidence: 99%

Inter- and Mixed Cropping of Different Varieties Improves High-Temperature Tolerance during Flowering of Summer Maize

Jun

et al. 2022

Sustainability

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Global warming increases the risk of high-temperature injury to maize. Inter- and mixed-cropping of maize varieties with different genotypes is one way to effectively alleviate the high-temperature injury during the flowering period. However, the mitigation effect of different varieties and intercropping modes on high-temperature injury is still unclear. Based on previous years of field production, Denghai 605, which is more sensitive to high temperatures during the flowering period, was determined as the main test variety, and Zhengdan 958, Dedan 5, Weike 702, and Xianyu 335, which have great genotypic differences, were used as auxiliary varieties. The main test varieties and auxiliary varieties were intercropped and mixed cropped, respectively. Plant height, ear height, leaf area index, population light transmittance, ear characteristics, and yield were measured, and the land equivalent ratio (LER) was calculated. The plant height of Denghai 605 intercropped with Zhengdan 958 and Dedan 5 and mixed with Weike 702 and Xianyu 335 decreased significantly. The population light transmittance of the bottom or middle layer in Denghai 605 increased significantly when intercropped with other varieties. The grain number per ear increased significantly under inter- and mixed cropping with Zhengdan 958 and Weike 702. Except under intercropping with Dedan 5, the yield of Denghai 605 increased significantly, by 8.8–28.0%, under inter- and mixed cropping. Under intercropping with Zhengdan 958 and inter- and mixed cropping with Weike 702 and Xianyu 335, respectively, the group land equivalent ratio was greater than 1.1, indicating that under the combination of these varieties, inter- and mixed cropping effectively reduced the impact of high temperatures during flowering.

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Section: Discussionmentioning

confidence: 99%

Inter- and Mixed Cropping of Different Varieties Improves High-Temperature Tolerance during Flowering of Summer Maize

Jun

et al. 2022

Sustainability

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“…Additionally, the increase of stomatal conductance promoted the degree of CO 2 acquisition and transportation (Figure 3b), thereby accelerating the production and accumulation of organic matter in plants [44]. At the same time, the maximum carboxylation rate, which is an important parameter for characterizing photosynthetic capacity of plants, also increased (Figure 3b), indicating that NO 2 fumigation increased Rubisco activity of mulberry leaves, thereby enhancing the fixation ability of CO 2 [45] . Moreover, the dark respiration rate was significantly increased (Figure 3d), indicating that its fumigated leaves consumed excess light energy through respiration to protect the photosynthetic system and increase the photosynthetic rate.…”

Section: Discussionmentioning

confidence: 99%

Atmospheric Nitrogen Dioxide Improves Photosynthesis in Mulberry Leaves via Effective Utilization of Excess Absorbed Light Energy

Wang

Jin

Che

et al. 2019

Forests

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Nitrogen dioxide (NO 2 ) is recognized as a toxic gaseous air pollutant. However, atmospheric NO 2 can be absorbed by plant leaves and subsequently participate in plant nitrogen metabolism. The metabolism of atmospheric NO 2 utilizes and consumes the light energy that leaves absorb. As such, it remains unclear whether the consumption of photosynthetic energy through nitrogen metabolism can decrease the photosynthetic capacity of plant leaves or not. In this study, we fumigated mulberry (Morus alba L.) plants with 4 µL·L −1 NO 2 and analyzed the distribution of light energy absorbed by plants in NO 2 metabolism using gas exchange and chlorophyll a fluorescence technology, as well as biochemical methods. NO 2 fumigation enhanced the nitrogen metabolism of mulberry leaves, improved the photorespiration rate, and consumed excess light energy to protect the photosynthetic apparatus. Additionally, the excess light energy absorbed by the photosystem II reaction center in leaves of mulberry was dissipated in the form of heat dissipation. Thus, light energy was absorbed more efficiently in photosynthetic carbon assimilation in mulberry plants fumigated with 4 µL·L −1 NO 2 , which in turn increased the photosynthetic efficiency of mulberry leaves. chemical reactions, trapping near-surface NO 2 , leading to NO 2 concentrations that are more than three times higher than that found in sunny weather. This increase in aerosol mass concentration leads to an increase in water content, accelerating the accumulation of sulfate and causing severe haze. In addition, NO 2 is also a respiratory system irritant. After being inhaled, NO 2 first affects the respiratory organs, the lungs in particular. The combination of nitrite and nitric acid that occurs when NO 2 encounters mucus membranes is a strong irritant with corrosive effects [7].NO 2 affects the normal growth of plants. When NO 2 concentrations are higher than the annual average NO 2 concentration limit of 53 ppb in the United States [8], NO 2 can damage the leaves of plants, causing chlorosis in angiosperms, needle burns in conifers [9,10], reduced leaf area [11], and lower stem weights [12]. However, when the concentration of NO 2 is lower than the average annual NO 2 concentration of 53 ppb in the United States, the total leaf area, nutrient intake, and aboveground biomass were more than doubled [13,14]. Similar results have been found in different plant species, including Arabidopsis thaliana [15,16], tobacco (Nicotiana plumbaginifolia L.) [17], and crops such as lettuce (Lactuca sativa L.), sunflower (Helianthus annuus L.), cucumber (Cucumis sativus L.), and squash (Cucurbita moschata L.) [9]. In addition, atmospheric NO 2 can shorten flowering periods in tomato (Solanum lycopersicum L. 'Micro-Tom'), increasing the number of flowers and the yield of the fruit [18].In China, the concentration of NO 2 emission, which caused formation of fine particulate matter (PM2.5), is not enough to injure tree plants. As a result, trees have been used to absorb atmospheric nitrogen dioxid...

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“…Similarly, intercropping with cowpea (Vigna sinensis L.) in India enhances the yield of the current crop and boosts the yield of subsequent winter wheat [16]. In the North China Plain, our previous research has shown that intercropping maize and peanut (M||P) offers significant yield advantages, attributed to positive aboveground and belowground interspecific interactions influencing crop plant growth [17,18]. These mechanisms may involve enhancing iron and nitrogen reciprocity between maize and peanut [19] and weak light absorption and utilization by peanut [20] along with strong light utilization by maize [17].…”

Section: Introductionmentioning

confidence: 99%

“…In the North China Plain, our previous research has shown that intercropping maize and peanut (M||P) offers significant yield advantages, attributed to positive aboveground and belowground interspecific interactions influencing crop plant growth [17,18]. These mechanisms may involve enhancing iron and nitrogen reciprocity between maize and peanut [19] and weak light absorption and utilization by peanut [20] along with strong light utilization by maize [17]. Feng et al showed that the worldwide average LER of maize intercropping with peanut was 1.31 ± 0.03 through a global meta-analysis of 36 studies [21].…”

Section: Introductionmentioning

confidence: 99%

Long-Term Maize Intercropping with Peanut and Phosphorus Application Maintains Sustainable Farmland Productivity by Improving Soil Aggregate Stability and P Availability

Zan,

Jiao,

et al. 2023

Agronomy

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The intercropping of maize (Zea mays L.) and peanuts (Arachis hypogaea L.) (M||P) significantly enhances crop yield. In a long-term M||P field experiment with two P fertilizer levels, we examined how long-term M||P affects topsoil aggregate fractions and stability, organic carbon (SOC), available phosphorus (AP), and total phosphorus (TP) in each aggregate fraction, along with crop yields. Compared to their respective monocultures, long-term M||P substantially increased the proportion of topsoil mechanical macroaggregates (7.6–16.3%) and water-stable macroaggregates (>1 mm) (13.8–36.1%), while reducing the unstable aggregate index (ELT) and the percentage of aggregation destruction (PAD). M||P significantly boosted the concentration (12.9–39.9%) and contribution rate (4.1–47.9%) of SOC in macroaggregates compared to single crops. Moreover, the concentration of TP in macroaggregates (>1 mm) and AP in each aggregate fraction of M||P exceeded that of the respective single crops (p < 0.05). Furthermore, M||P significantly increased the Ca2-P, Ca8-P, Al-P, and Fe-P concentrations of intercropped maize (IM) and the Ca8-P, O-P, and Ca10-P concentrations of intercropped peanuts (IP). The land equivalent ratio (LER) of M||P was higher than one, and M||P stubble improved the yield of subsequent winter wheat (Triticum aestivum L.) compared with sole-crop maize stubble. P application augmented the concentration of SOC, TP, and AP in macroaggregates, resulting in improved crop yields. In conclusion, our findings suggest that long-term M||P combined with P application sustains farmland productivity in the North China Plain by increasing SOC and macroaggregate fractions, improving aggregate stability, and enhancing soil P availability.

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Effects of maize‖peanut intercropping on photosynthetic characters and yield forming of intercropped maize

Cited by 15 publications

References 0 publications

Inter- and Mixed Cropping of Different Varieties Improves High-Temperature Tolerance during Flowering of Summer Maize

Inter- and Mixed Cropping of Different Varieties Improves High-Temperature Tolerance during Flowering of Summer Maize

Atmospheric Nitrogen Dioxide Improves Photosynthesis in Mulberry Leaves via Effective Utilization of Excess Absorbed Light Energy

Long-Term Maize Intercropping with Peanut and Phosphorus Application Maintains Sustainable Farmland Productivity by Improving Soil Aggregate Stability and P Availability

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