Abstract
Aeolian sandy soil occupied one-fifth of the agricultural land in Northeast China; however, effective strategies to mitigate aeolian sandy soil degradation and enhance crop production remain largely unexplored. Here, a two-year field experiment was conducted on the aeolian sandy soil to evaluate the effects of rotational strip peanut/cereal intercropping systems on soil quality and crop yields. The experiment comprised seven treatments: peanut/corn intercropping with strip widths of 3, 6, and 9 m; peanut/millet intercropping with strip widths of 3, 6, and 9 m; and a peanut monoculture serving as the control. We showed that both peanut/corn and peanut/millet intercropping systems significantly enhanced the nutrient levels including total alkaline- hydrolyzable nitrogen, available phosphorus, available potassium, and organic matter in the rhizosphere soil compared with peanut monoculture. Moreover, the activities of soil enzymes such as catalase, cellulase, urease, and phosphomonoesterase were substantially increased in intercropping treatments. Entropy-weighted TOPSIS analysis indicated that peanut/corn and peanut/millet intercropping with strip width of 6-m treatments achieved optimal performance in regulating soil nutrients, enhancing enzyme activities, and improving land-use efficiency. These two treatments also significantly increased the peanut yield and total output values, reduced total input costs, while optimized economic returns over peanut monoculture. In summary, this study provides scientific evidence that rotational peanut/cereal intercropping systems utilizing a 6-m strip width could be utilized as practical strategies for improving crop production, restoring ecological balance, and ensuring sustainable land management of aeolian sandy soil in Northeast China.
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Claims 7
Claim · model-written summary
Peanut/corn and peanut/millet intercropping significantly enhanced rhizosphere soil nutrient levels compared with peanut monoculture.
- Taxon
- peanut
Arachis hypogaeat0 - Organ / stage
- rhizosphere soile1
- Treatment
- peanut/corn and peanut/millet intercropping systemse1
- Outcome
- nutrient levelse1
- Direction
- enhancede1
- Comparator
- peanut monoculturee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rotational strip peanut/cereal intercropping systems improve soil quality and crop yields in aeolian sandy soil”
e1“both peanut/corn and peanut/millet intercropping systems significantly enhanced the nutrient levels including total alkaline- hydrolyzable nitrogen, available phosphorus, available potassium, and organic matter in the rhizosphere soil compared with peanut monoculture”
Claim · model-written summary
Intercropping substantially increased activities of soil enzymes such as catalase, cellulase, urease and phosphomonoesterase.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- intercropping treatmentse2
- Outcome
- activities of soil enzymese2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rotational strip peanut/cereal intercropping systems improve soil quality and crop yields in aeolian sandy soil”
e2“the activities of soil enzymes such as catalase, cellulase, urease, and phosphomonoesterase were substantially increased in intercropping treatments”
Claim · model-written summary
Peanut intercropping with a 6-m strip width achieved optimal performance in regulating soil nutrients, enhancing enzyme activities and improving land-use efficiency.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- peanut/corn and peanut/millet intercropping with strip width of 6-me3
- Outcome
- land-use efficiencye3
- Direction
- improvinge3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rotational strip peanut/cereal intercropping systems improve soil quality and crop yields in aeolian sandy soil”
e3“peanut/corn and peanut/millet intercropping with strip width of 6-m treatments achieved optimal performance in regulating soil nutrients, enhancing enzyme activities, and improving land-use efficiency”
Claim · model-written summary
Peanut/corn and peanut/millet intercropping with a 6-m strip width significantly increased peanut yield over peanut monoculture.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- peanut/corn and peanut/millet intercropping with strip width of 6-me3
- Outcome
- peanut yielde4
- Direction
- increasede4
- Comparator
- peanut monoculturee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rotational strip peanut/cereal intercropping systems improve soil quality and crop yields in aeolian sandy soil”
e3“peanut/corn and peanut/millet intercropping with strip width of 6-m treatments achieved optimal performance”
e4“These two treatments also significantly increased the peanut yield and total output values, reduced total input costs, while optimized economic returns over peanut monoculture”
Claim · model-written summary
Peanut/corn and peanut/millet intercropping with a 6-m strip width increased total output values over peanut monoculture.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- peanut/corn and peanut/millet intercropping with strip width of 6-me3
- Outcome
- total output valuese4
- Direction
- increasede4
- Comparator
- peanut monoculturee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rotational strip peanut/cereal intercropping systems improve soil quality and crop yields in aeolian sandy soil”
e3“peanut/corn and peanut/millet intercropping with strip width of 6-m treatments achieved optimal performance”
e4“These two treatments also significantly increased the peanut yield and total output values, reduced total input costs, while optimized economic returns over peanut monoculture”
Claim · model-written summary
Peanut/corn and peanut/millet intercropping with a 6-m strip width reduced total input costs relative to peanut monoculture.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- peanut/corn and peanut/millet intercropping with strip width of 6-me3
- Outcome
- total input costse4
- Direction
- reducede4
- Comparator
- peanut monoculturee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rotational strip peanut/cereal intercropping systems improve soil quality and crop yields in aeolian sandy soil”
e3“peanut/corn and peanut/millet intercropping with strip width of 6-m treatments achieved optimal performance”
e4“These two treatments also significantly increased the peanut yield and total output values, reduced total input costs, while optimized economic returns over peanut monoculture”
Claim · model-written summary
Peanut/corn and peanut/millet intercropping with a 6-m strip width optimized economic returns relative to peanut monoculture.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- peanut/corn and peanut/millet intercropping with strip width of 6-me3
- Outcome
- economic returnse4
- Direction
- optimizede4
- Comparator
- peanut monoculturee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rotational strip peanut/cereal intercropping systems improve soil quality and crop yields in aeolian sandy soil”
e3“peanut/corn and peanut/millet intercropping with strip width of 6-m treatments achieved optimal performance”
e4“These two treatments also significantly increased the peanut yield and total output values, reduced total input costs, while optimized economic returns over peanut monoculture”
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