Border row effects on the distribution of root and soil resources in maize–soybean strip intercropping systems

Shen, Lei; Wang, Xiuyuan; Liu, Tingting; Wei, Wenwen; Zhang, Shuai; Keyhani, Abdul Baess; Li, Luhua; Zhang, Wei

doi:10.1016/j.still.2023.105812

Cited by 11 publications

(8 citation statements)

References 64 publications

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“…These acids act as main osmotic pressure regulators, contributing to the increased SWC in intercropping ( Rezig et al., 2013 ). Our results also showed that intercropping with legumes increases soil SWC, which is supported by previous studies indicating that intercropping systems can significantly improve soil physicohydraulic properties and optimize soil structure ( Chen et al., 2019 ; Shen et al., 2023 ). This finding suggests that the intercropping of oilseed bean with soybean significantly improves adaptation to drought and provides a basis for promoting soybean cultivation in arid regions.…”

Section: Discussionsupporting

confidence: 91%

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Effect of intercropping with legumes at different rates on the yield and soil physicochemical properties of Cyperus esculentus L. in arid land

Shen,

Liu,

et al. 2024

Front. Plant Sci.

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Intercropping has the potential to enhance yields and nutrient availability in resource-limited agricultural systems. However, the effects on crop yield nutrients and soil properties can vary considerably depending on the specific plant combinations and intercropping ratios used. In this study, the advantages and impacts of intercropping C. esculentus with legumes were investigated by measuring their biomass, nutrient content, and soil properties. The experiment included five intercropping treatments: monoculture of C. esculentus (MC), intercropping of C. esculentus with Medicago sativa L. (alfalfa) at row spacing ratios of 4:4 (4:4CM) and 8:4 (8:4CM), and intercropping of C. esculentus with Glycine max (L.) Merr. (soybean), also at row spacing ratios of 4:4 (4:4CG) and 8:4 (8:4CG). Our results demonstrated that all four intercropping treatments (4:4CM, 4:4CG, 8:4CM, and 8:4CG) significantly increased the biomass of C. esculentus by approximately 41.05%, 41.73%, 16.08%, and 18.43%, respectively, compared with monoculture cultivation alone, among which the 4:4CG treatment was optimum. However, no significant differences were observed in alfalfa or soybean biomass across different intercropping ratios. A notable increase was found in the total nitrogen (TN) and total phosphorus (TP) contents in the leaves, roots, and tubers of C. esculentus under intercropping, along with increased soil organic carbon (SOC), alkaline-hydrolyzed nitrogen (AN), available phosphorus (AP), microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), and soil water content (SWC), and significantly reduced the soil pH. Among the intercropping treatments, the 4:4CG treatment also exhibited the most favorable soil properties. In particular, compared with MC, the 4:4CG treatment resulted in significant increases of 163.8%, 394.6%, and 716.8% in SOC, AN, and AP contents, respectively. The same treatment also led to significant increases of 48.34%, 46.40%, and 208.65% in MBC, MBN, and SWC, respectively. Overall, the findings suggest that the use of 4:4CG intercropping is an effective approach for sustainable farming management in Xinjiang.

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Section: Discussionsupporting

confidence: 91%

“…(2023) , who observed a considerable decrease in soil pH after intercropping tea with legumes compared with monocropping. Shen et al. (2023) reported increased SWC when intercropping maize and soybean.…”

Section: Discussionmentioning

confidence: 99%

Effect of intercropping with legumes at different rates on the yield and soil physicochemical properties of Cyperus esculentus L. in arid land

Shen,

Liu,

et al. 2024

Front. Plant Sci.

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“…Our findings showed that maize‒soybean intercropping changed the leaf area index, photosynthetically active radiation, and light transmittance ratio of soybean and that these values significantly decreased compared to those under soybean monoculture, which is consistent with previous findings 25 , 26 . The row ratio structure alters the distribution of light energy in maize and soybean populations 27 . In our study, the narrow-wide row pattern (80 cm–50 cm) increased the photosynthetically active radiation of soybean significantly more than did the uniform-ridge pattern (65 cm) because the change in ridge spacing not only improved the light transmittance ratio of soybean but also increased the photosynthetic area of crops.…”

Section: Discussionmentioning

confidence: 99%

Effects of narrow-wide row planting patterns on canopy photosynthetic characteristics, bending resistance and yield of soybean in maize‒soybean intercropping systems

Gu,

Zheng,

et al. 2024

Sci Rep

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With the improvements in mechanization levels, it is difficult for the traditional intercropping planting patterns to meet the needs of mechanization. In the traditional maize‒soybean intercropping, maize has a shading effect on soybean, which leads to a decrease in soybean photosynthetic capacity and stem bend resistance, resulting in severe lodging, which greatly affects soybean yield. In this study, we investigated the effects of three intercropping ratios (four rows of maize and four rows of soybean; four rows of maize and six rows of soybean; six rows of maize and six rows of soybean) and two planting patterns (narrow-wide row planting pattern of 80–50 cm and uniform-ridges planting pattern of 65 cm) on soybean canopy photosynthesis, stem bending resistance, cellulose, hemicellulose, lignin and related enzyme activities. Compared with the uniform-ridge planting pattern, the narrow-wide row planting pattern significantly increased the LAI, PAR, light transmittance and compound yield by 6.06%, 2.49%, 5.68% and 5.95%, respectively. The stem bending resistance and cellulose, hemicellulose, lignin and PAL, TAL and CAD activities were also significantly increased. Compared with those under the uniform-ridge planting pattern, these values increased by 7.74%, 3.04%, 8.42%, 9.76%, 7.39%, 10.54% and 8.73% respectively. Under the three intercropping ratios, the stem bending resistance, cellulose, hemicellulose, lignin content and PAL, TAL, and CAD activities in the M4S6 treatment were significantly greater than those in the M4S4 and M6S6 treatments. Compared with the M4S4 treatment, these variables increased by 12.05%, 11.09%, 21.56%, 11.91%, 18.46%, 16.1%, and 16.84%, respectively, and compared with the M6S6 treatment, they increased by 2.06%, 2.53%, 2.78%, 2.98%, 8.81%, 4.59%, and 4.36%, respectively. The D-M4S6 treatment significantly improved the lodging resistance of soybean and weakened the negative impact of intercropping on soybean yield. Therefore, based on the planting pattern of narrow-wide row maize‒soybean intercropping planting pattern, four rows of maize and six rows of soybean were more effective at improving the lodging resistance of soybean in the semiarid region of western China.

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“…11−15 However, intercropping may intensify resource competition and reduce crop yields if the intercropping plant configuration is not suitable. 16 Allelopathy is a significant factor influencing plant interactions during intercropping. This is a biological phenomenon in which plants release bioactive compounds (allelochemicals) that affect the growth, development, and physiological processes of nearby plants.…”

Section: ■ Introductionmentioning

confidence: 99%

“…oleifera is often mixed with annual crops in early planting, forming an intercropping system . Intercropping can improve soil quality, increase crop yields, optimize land use, and increase economic benefits by promoting complementarity, mutual benefit, and ecological balance between crops. − However, intercropping may intensify resource competition and reduce crop yields if the intercropping plant configuration is not suitable . Allelopathy is a significant factor influencing plant interactions during intercropping.…”

Section: Introductionmentioning

confidence: 99%

Allelopathic Mechanisms in Camellia oleifera–Arachis hypogaea L. Intercropping

Wen,

Dan,

Liu

et al. 2023

J. Agric. Food Chem.

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Border row effects on the distribution of root and soil resources in maize–soybean strip intercropping systems

Cited by 11 publications

References 64 publications

Effect of intercropping with legumes at different rates on the yield and soil physicochemical properties of Cyperus esculentus L. in arid land

Effect of intercropping with legumes at different rates on the yield and soil physicochemical properties of Cyperus esculentus L. in arid land

Effects of narrow-wide row planting patterns on canopy photosynthetic characteristics, bending resistance and yield of soybean in maize‒soybean intercropping systems

Allelopathic Mechanisms in Camellia oleifera–Arachis hypogaea L. Intercropping

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