Paper · 2023 · Mindanao Journal of Science and Technology

Utilization of Forage Crops as an Effective and Eco-friendly Method for Weed Growth Control and Distribution in an Immature Rubber Plantation

Rawee Chiarawipa; Pornthep Teerawattanapong; Pin Chanjula

8
claims
15
verbatim quotes
0
citations
3
research areas
✓
Open access

Abstract

Rubber plantation, especially in the immature phase, is usually infested by various local weed species in the inter-row spaces of the rubber trees. This study aimed to evaluate the distribution of weed species and the growth and yield of forage crops for weed control and management in an immature rubber plantation. The field study was conducted with four treatments of forage crops. The first treatment was a control plot in which local weeds were growing naturally without forage crops. The plot was compared with the other three immature plots wherein native tropical carpet grass (Axonopus compressus), native whip grass (Hemarthria compressa) and high productive yield ruzi grass (Brachiaria ruziziensis) were planted, respectively, in the inter-row of the rubber trees. The study period was split into four seasons: S0 – January to June 2016; S1 – July to September 2016; S2 – October to December 2016; and S3 – January to March 2017. Results showed that three families of narrow-leaf and nine families of broad-leaf weeds were found in the study area. A large number of common weed families were observed more in the S3 than those in other seasons. Moreover, all forage crops were effective in suppressing weeds, with ruzi grass demonstrating the highest level of competitiveness and yield among the native forage crops reaching 1.50 Mg ha-1 in the S3. Therefore, implementing an indirect weed control approach using forage crops in rubber plantations could serve as a sustainable and environmentally friendly alternative to chemical herbicides.

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Claims 8

Observationobservedoriginal resultmeasured

Claim · model-written summary

Three narrow leaf and nine broad leaf weed families occurred in the study area.

Taxon
Rubbert0
Outcome
narrow-leaf and nine families of broad-leaf weedse0
Value
three familiese0

Verbatim

e0

“three families of narrow-leaf and nine families of broad-leaf weeds were found in the study area.”

✓ located verbatim in the source · abstract, characters 962–1059 · show in text ↑
t0

“Rubber Plantation”

✓ located verbatim in the source · title, characters 124–141 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Common weed families were more numerous in S3 than in other seasons.

Taxon
Rubbert0
Outcome
common weed familiese0
Direction
moree0
Comparator
other seasonse0

Verbatim

e0

“A large number of common weed families were observed more in the S3 than those in other seasons.”

✓ located verbatim in the source · abstract, characters 1060–1156 · show in text ↑
t0

“Rubber Plantation”

✓ located verbatim in the source · title, characters 124–141 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Forage crops suppressed weeds.

Taxon
Rubbert0
Treatment
forage cropse0
Interactor
weedse0weed
Outcome
weedse0
Direction
suppressinge0

Not reportedComparator

Verbatim

e0

“all forage crops were effective in suppressing weeds”

✓ located verbatim in the source · abstract, characters 1167–1219 · show in text ↑
t0

“Rubber Plantation”

✓ located verbatim in the source · title, characters 124–141 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hemarthria compressa suppressed weeds.

Taxon
Rubbert0
Interactor
weedse0weed
Outcome
weedse0
Direction
suppressinge0

Not reportedTreatmentComparator

Verbatim

e0

“all forage crops were effective in suppressing weeds”

✓ located verbatim in the source · abstract, characters 1167–1219 · show in text ↑
t0

“Rubber Plantation”

✓ located verbatim in the source · title, characters 124–141 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Brachiaria ruziziensis suppressed weeds.

Taxon
Rubbert0
Interactor
weedse0weed
Outcome
weedse0
Direction
suppressinge0

Not reportedTreatmentComparator

Verbatim

e0

“all forage crops were effective in suppressing weeds”

✓ located verbatim in the source · abstract, characters 1167–1219 · show in text ↑
t0

“Rubber Plantation”

✓ located verbatim in the source · title, characters 124–141 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Ruzi grass had the greatest competitiveness among the native forage crops.

Taxon
Rubbert0
Interactor
ruzi grasse0weed
Outcome
competitivenesse0
Direction
higheste0
Comparator
native forage cropse0

Verbatim

e0

“ruzi grass demonstrating the highest level of competitiveness and yield among the native forage crops reaching 1.50 Mg ha-1 in the S3.”

✓ located verbatim in the source · abstract, characters 1226–1360 · show in text ↑
t0

“Rubber Plantation”

✓ located verbatim in the source · title, characters 124–141 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Ruzi grass yielded 1.50 Mg ha-1 in S3, the highest among forage crops.

Taxon
Rubbert0
Outcome
yielde0
Direction
higheste0
Value
1.50 Mg ha-1e0
Qualifier
S3e0

Verbatim

e0

“ruzi grass demonstrating the highest level of competitiveness and yield among the native forage crops reaching 1.50 Mg ha-1 in the S3.”

✓ located verbatim in the source · abstract, characters 1226–1360 · show in text ↑
t0

“Rubber Plantation”

✓ located verbatim in the source · title, characters 124–141 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Forage crops were recommended as an indirect weed control alternative in rubber plantations.

Taxon
rubber plantationse0
Outcome
indirect weed control approach using forage cropse0

Verbatim

e0

“implementing an indirect weed control approach using forage crops in rubber plantations could serve as a sustainable and environmentally friendly alternative to chemical herbicides.”

✓ located verbatim in the source · abstract, characters 1372–1553 · show in text ↑