Paper · 2013 · International Research Journal of Agriculture and Soil Science

Legumes tree hedgerows in cassava farming affecting soil productivity and cassava yield.

Yoyo Soelaeman; Maswar

8
claims
10
verbatim quotes
0
citations
1
research areas
—
Not open access

Abstract

Integration of legume trees as hedgerows in cassava (Manihot utilisima Crantz) farming is one possibility to reduce the negative effect of cassava farming on soil productivity. The experiment was conducted in the Tamanbogo Experimental Farm in East Lampung from November 2006 to November 2008, located at 050 00’ 20” S and 1050 29’ 23” E. The field experiment had three factors of legumes hedgerow, and three factors of P fertilizer rates that were arranged in a split plot experimental design. The results showed that the total biomass of legumes tree pruning in 2007 and 2008 were not affected by P fertilization on cassava but it was affected significantly by the variety of legumes tree planted as hedgerows. The rates of P fertilization on cassava did not effect significantly on soil chemical characteristic in 2007 but it’s tend to increase in 2008. Flemingia congesta hedgerows gave a significant lower soil bulk density and highest total soil pores space in 2008. The highest yield of fresh cassava (19.98 t ha-1) was gained on Flemingia congesta hedgerows. Increasing the rates of P fertilizer from 36 to 72 kg P2O5 ha-1 increased the yield of cassava significantly in 2008.

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Claims 8

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

P fertilization did not affect legume pruning biomass.

Treatment
P fertilizatione0
Outcome
total biomass of legumes tree pruninge0
Direction
not affectede0

Not reportedComparator

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“the total biomass of legumes tree pruning in 2007 and 2008 were not affected by P fertilization on cassava”

✓ located verbatim in the source · abstract, characters 519–625 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Hedgerow variety significantly affected legume pruning biomass.

Material
legumes treee0
Outcome
total biomass of legumes tree pruninge0

Not reportedDirection

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“the total biomass of legumes tree pruning in 2007 and 2008 were not affected by P fertilization on cassava but it was affected significantly by the variety of legumes tree planted as hedgerows”

✓ located verbatim in the source · abstract, characters 519–711 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

P fertilization did not significantly affect soil chemical characteristics in 2007.

Treatment
P fertilizatione0
Outcome
soil chemical characteristice0
Direction
did not effecte0

Not reportedComparator

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“The rates of P fertilization on cassava did not effect significantly on soil chemical characteristic in 2007”

✓ located verbatim in the source · abstract, characters 713–821 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

P fertilization tended to increase soil chemical characteristics in 2008.

Treatment
P fertilizatione0
Outcome
soil chemical characteristice0
Direction
increasee0

Not reportedComparator

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“The rates of P fertilization on cassava did not effect significantly on soil chemical characteristic in 2007 but it’s tend to increase in 2008”

✓ located verbatim in the source · abstract, characters 713–855 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Flemingia congesta hedgerows lowered soil bulk density significantly.

Treatment
Flemingia congesta hedgerowse0
Outcome
soil bulk densitye0
Direction
lowere0

Not reportedComparator

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Flemingia congesta hedgerows gave a significant lower soil bulk density”

✓ located verbatim in the source · abstract, characters 857–928 · show in text ↑
e1

“yield of fresh cassava”

✓ located verbatim in the source · abstract, characters 985–1007 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Flemingia congesta hedgerows yielded the highest soil pore space.

Treatment
Flemingia congesta hedgerowse0
Outcome
total soil pores spacee0
Direction
higheste0

Not reportedComparator

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Flemingia congesta hedgerows gave a significant lower soil bulk density and highest total soil pores space in 2008”

✓ located verbatim in the source · abstract, characters 857–971 · show in text ↑
e1

“yield of fresh cassava”

✓ located verbatim in the source · abstract, characters 985–1007 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cassava fresh yield reached 19.98 t ha-1 with Flemingia hedgerows.

Treatment
Flemingia congesta hedgerowse0
Outcome
yield of fresh cassavae0
Direction
higheste0
Value
19.98 t ha-1e0

Not reportedComparator

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“The highest yield of fresh cassava (19.98 t ha-1) was gained on Flemingia congesta hedgerows.”

✓ located verbatim in the source · abstract, characters 973–1066 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Increasing phosphorus fertilizer significantly raised cassava yield in 2008.

Treatment
rates of P fertilizer from 36 to 72 kg P2O5 ha-1e0
Outcome
yield of cassavae0
Direction
increasede0

Not reportedComparator

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Increasing the rates of P fertilizer from 36 to 72 kg P2O5 ha-1 increased the yield of cassava significantly in 2008.”

✓ located verbatim in the source · abstract, characters 1067–1184 · show in text ↑

phosphorus · yield · Manihot esculenta (cassava)Positive and negative results

20 papers: 18 positive, 2 negative or no effect

17 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. negative
  3. positive

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fertilization · growth · Manihot esculenta (cassava)Positive and negative results

71 papers: 65 positive, 6 negative or no effect

5 papers in the same direction as this paper · 65 in the opposite direction

  1. positive
  2. positive
  3. positive

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fertilization · yield · Manihot esculenta (cassava)Positive and negative results

153 papers: 141 positive, 12 negative or no effect

140 papers in the same direction as this paper · 10 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

149 papers more in this group

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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.