Paper · 2026 · Journal of Degraded and Mining Lands Management

Modification of contour planting system and its impact on improving infiltration characteristics of suboptimal land and soybean yields

Sunarti Sunarti; Endriani Endriani; Najla Anwar Fuadi

6
claims
9
verbatim quotes
0
citations
1
research areas
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Open access · cc-by-nc

Abstract

Low infiltration is one of the limiting factors on suboptimal land for agriculture. The infiltration is closely related to the soil's available water for plants. Low infiltration impacts soybean productivity. The contour planting system is a soil and water conservation technology that can be applied to increase infiltration. This research aimed to examine the impact of modifying the contour planting system on the infiltration characteristics of suboptimal land and soybean yields. The research used a quantitative approach with experimental methods (split-plot design) and three replications. The main plot treatment was the position of the land on the slope (the upper, middle, and lower). The subplot treatment was the contour planting system (standard contour planting system, 30o, 45o, and 60o from the contour line). Data were analyzed using analysis of variance and Duncan’s Multiple Range Test. The results showed that the modification of contour planting systems had no significant effect compared to the standard contour planting system in improving organic carbon content, bulk density, infiltration characteristics, and soybean plant height. The standard contour system resulted in higher soybean yields than the modification of the contour planting system. The position of the soil had a significant influence on soil properties, infiltration characteristics, plant height, and yields of soybeans. The soil characteristics, infiltration characteristics, and soybean yields resulting from standard and modification of contour planting systems showed suboptimal improvements. Therefore, further studies are needed to optimize the application of modification of contour planting systems to support the implementation of conservation agriculture systems.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 6

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Modified contour planting did not significantly affect soil organic carbon, bulk density or infiltration versus standard contour planting.

Taxon
soybeanGlycine maxt0
Treatment
modification of contour planting systemse0
Outcome
organic carbon content, bulk density, infiltration characteristicse0
Direction
no significant effecte0
Comparator
standard contour planting systeme0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“modification of contour planting systems had no significant effect compared to the standard contour planting system in improving organic carbon content, bulk density, infiltration characteristics”

✓ located verbatim in the source · abstract, characters 934–1129 · show in text ↑
t0

“soybean”

✓ located verbatim in the source · title, characters 120–127 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Modified contour planting did not significantly affect soybean height versus standard contour planting.

Taxon
soybeanGlycine maxe0
Treatment
modification of contour planting systemse0
Outcome
soybean plant heighte0
Direction
no significant effecte0
Comparator
standard contour planting systeme0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“modification of contour planting systems had no significant effect compared to the standard contour planting system in improving organic carbon content, bulk density, infiltration characteristics, and soybean plant height”

✓ located verbatim in the source · abstract, characters 934–1155 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Standard contour planting produced higher soybean yields than modified contour planting.

Taxon
soybeanGlycine maxe0
Treatment
standard contour systeme0
Outcome
soybean yieldse0
Direction
highere0
Comparator
modification of the contour planting systeme0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The standard contour system resulted in higher soybean yields than the modification of the contour planting system”

✓ located verbatim in the source · abstract, characters 1157–1271 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Slope position significantly influenced soil properties and infiltration.

Taxon
soybeanGlycine maxt0
Treatment
position of the soile0
Outcome
soil properties, infiltration characteristicse0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The position of the soil had a significant influence on soil properties, infiltration characteristics, plant height, and yields of soybeans”

✓ located verbatim in the source · abstract, characters 1273–1412 · show in text ↑
t0

“soybean”

✓ located verbatim in the source · title, characters 120–127 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Slope position significantly influenced soybean height and yields.

Taxon
soybeanGlycine maxt0
Treatment
position of the soile0
Outcome
plant height, and yields of soybeanse0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The position of the soil had a significant influence on soil properties, infiltration characteristics, plant height, and yields of soybeans”

✓ located verbatim in the source · abstract, characters 1273–1412 · show in text ↑
t0

“soybean”

✓ located verbatim in the source · title, characters 120–127 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Standard and modified contour planting yielded suboptimal improvement in soil characteristics, infiltration and soybean yields.

Taxon
soybeanGlycine maxe0
Outcome
suboptimal improvementse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The soil characteristics, infiltration characteristics, and soybean yields resulting from standard and modification of contour planting systems showed suboptimal improvements”

✓ located verbatim in the source · abstract, characters 1414–1588 · show in text ↑