Paper · 2001 · CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research)

Practices and progress in farmer participatory research in China

Huang, Jie; Li, Kaimian; Zhang, Weite; et al.

11
claims
24
verbatim quotes
5
citations
1
research areas
✓
Open access · other-oa

Abstract

The FPR project in China is a cooperative project between CIAT and CATAS, and is financially supported by the Nippon Foundation of Japan. This paper mainly describes results of the FPR trials conducted in Hainan province of China and discusses the function of FPR in the transfer of cassava technologies, existing problems and future development prospects. The project involves the following aspects of research: variety trials, soil and water conservation and fertilizer management. Contour barriers of tropical grass and legume species, and intercropping with peanut and other legume crops have been shown to be effective in protecting the soil from erosion. Results based on trials conducted at CATAS from 1995 to 1999 indicate that hedgerows of vetiver grass, Clitoria ternatea, Chamaecrista rotundifolia, Indigofera endecaphylla, Arachis pintoi, Tephrosia candida, Ananas comosus and Brachiaria decumbens decreased dry soil loss (5-30 t/ha) by 65-94%, compared to the check treatment which had a dry soil loss of 85 t/ha. FPR trials conducted by farmers in their own fields indicate that cassava intercropped with peanut and planting vetiver grass as contour barriers was the best practice: dry soil loss decreased by 28-57% compared to the check treatment, and increased income by 3,300 Yuan/ha. This practice has been widely adopted by farmers in the pilot site of Kongba village in Baisha county of Hainan, and is being disseminated to neighboring villages by farmer-to-farmer extension. During 1995-1999, more than 41 promising clones have been tested in 38 farmers’ fields; they were harvested and evaluated by farmers themselves. Results show that SC8013 and OMR33- 10-4 outyielded the check variety SC205 by 13.1% and 34.4%, respectively. However, there were no significant differences among varieties in terms of soil erosion control. It is very easy for farmers to select and adopt their favorate varieties through their own participation. This approach will enhance the dissemination of new varieties and technologies. Fertilizer trials were conducted in 14 farmers’ fields using 12 treatments. The results show that all the treatments with fertilizers produced higher yields than those without fertilizers, and that application of 300 kg/ha of a special fertilizer (No. 3) increased the yield by 33% and gross income by 22%. This result will help convince farmers to apply fertilizers to their cassava fields in the future.

Abstract from the paper’s OpenAlex record; open copy licensed other-oa. 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 11

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hedgerows of vetiver grass and other tropical grass and legume species decreased dry soil loss by 65-94% compared with the check treatment.

Treatment
hedgerows of vetiver grasse2
Outcome
dry soil losse2
Direction
decreasede2
Value
65-94%e2
Qualifier
85 t/hae2
Comparator
check treatmente2
Setting
CATASe5

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

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

Verbatim

e0

“transfer of cassava technologies”

✓ located verbatim in the source · abstract, characters 271–303 · show in text ↑
e2

“hedgerows of vetiver grass, Clitoria ternatea, Chamaecrista rotundifolia, Indigofera endecaphylla, Arachis pintoi, Tephrosia candida, Ananas comosus and Brachiaria decumbens decreased dry soil loss (5-30 t/ha) by 65-94%, compared to the check treatment which had a dry soil loss of 85 t/ha”

✓ located verbatim in the source · abstract, characters 736–1025 · show in text ↑
e5

“Results based on trials conducted at CATAS from 1995 to 1999”

✓ located verbatim in the source · abstract, characters 661–721 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cassava intercropped with peanut and vetiver grass contour barriers decreased dry soil loss by 28-57% relative to the check treatment.

Treatment
intercropped with peanut and planting vetiver grass as contour barrierse3
Outcome
dry soil losse3
Direction
decreasede3
Value
28-57%e3
Comparator
check treatmente3

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

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

Verbatim

e3

“cassava intercropped with peanut and planting vetiver grass as contour barriers was the best practice: dry soil loss decreased by 28-57% compared to the check treatment”

✓ located verbatim in the source · abstract, characters 1093–1261 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Cassava intercropped with peanut and vetiver grass contour barriers was the best practice among those tested.

Outcome
best practicee3

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

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

Verbatim

e3

“cassava intercropped with peanut and planting vetiver grass as contour barriers was the best practice: dry soil loss decreased by 28-57% compared to the check treatment”

✓ located verbatim in the source · abstract, characters 1093–1261 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cassava intercropped with peanut and vetiver grass contour barriers increased income by 3,300 Yuan/ha.

Treatment
intercropped with peanut and planting vetiver grass as contour barrierse3
Outcome
incomee4
Direction
increasede4
Value
3,300 Yuan/hae4
Comparator
check treatmente3

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

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

Verbatim

e3

“cassava intercropped with peanut and planting vetiver grass as contour barriers was the best practice: dry soil loss decreased by 28-57% compared to the check treatment”

✓ located verbatim in the source · abstract, characters 1093–1261 · show in text ↑
e4

“and increased income by 3,300 Yuan/ha”

✓ located verbatim in the source · abstract, characters 1263–1300 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cassava clone SC8013 outyielded the check variety SC205 by 13.1% in farmer-evaluated trials.

Material
SC8013e6
Treatment
promising clonese5
Outcome
yielde6
Direction
outyieldede6
Value
13.1%e6
Comparator
check variety SC205e6
Setting
farmers’ fieldse5

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

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

Verbatim

e0

“transfer of cassava technologies”

✓ located verbatim in the source · abstract, characters 271–303 · show in text ↑
e5

“more than 41 promising clones have been tested in 38 farmers’ fields”

✓ located verbatim in the source · abstract, characters 1514–1582 · show in text ↑
e6

“Results show that SC8013 and OMR33- 10-4 outyielded the check variety SC205 by 13.1% and 34.4%, respectively”

✓ located verbatim in the source · abstract, characters 1641–1749 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cassava clone OMR33-10-4 outyielded the check variety SC205 by 34.4% in farmer-evaluated trials.

Material
OMR33- 10-4e6
Treatment
promising clonese5
Outcome
yielde6
Direction
outyieldede6
Value
34.4%e6
Comparator
check variety SC205e6
Setting
farmers’ fieldse5

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

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

Verbatim

e0

“transfer of cassava technologies”

✓ located verbatim in the source · abstract, characters 271–303 · show in text ↑
e5

“more than 41 promising clones have been tested in 38 farmers’ fields”

✓ located verbatim in the source · abstract, characters 1514–1582 · show in text ↑
e6

“Results show that SC8013 and OMR33- 10-4 outyielded the check variety SC205 by 13.1% and 34.4%, respectively”

✓ located verbatim in the source · abstract, characters 1641–1749 · show in text ↑
Observationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

No significant differences in soil erosion control were found among cassava varieties.

Material
varietiese7
Outcome
soil erosion controle7

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

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

Verbatim

e0

“transfer of cassava technologies”

✓ located verbatim in the source · abstract, characters 271–303 · show in text ↑
e7

“there were no significant differences among varieties in terms of soil erosion control”

✓ located verbatim in the source · abstract, characters 1760–1846 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fertilized treatments produced higher cassava yields than unfertilized treatments in farmers’ fields.

Treatment
fertilizerse1
Outcome
yieldse1
Direction
highere1
Comparator
those without fertilizerse1
Setting
14 farmers’ fieldse2

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

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

Verbatim

e0

“transfer of cassava technologies”

✓ located verbatim in the source · abstract, characters 271–303 · show in text ↑
e1

“all the treatments with fertilizers produced higher yields than those without fertilizers”

✓ located verbatim in the source · abstract, characters 2132–2221 · show in text ↑
e2

“Fertilizer trials were conducted in 14 farmers’ fields using 12 treatments”

✓ located verbatim in the source · abstract, characters 2034–2108 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Application of 300 kg/ha of special fertilizer No. 3 increased cassava yield by 33%.

Treatment
application of 300 kg/ha of a special fertilizer (No. 3)e1
Outcome
yielde1
Direction
increasede1
Value
33%e1

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

“transfer of cassava technologies”

✓ located verbatim in the source · abstract, characters 271–303 · show in text ↑
e1

“application of 300 kg/ha of a special fertilizer (No. 3) increased the yield by 33% and gross income by 22%”

✓ located verbatim in the source · abstract, characters 2232–2339 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Application of 300 kg/ha of special fertilizer No. 3 increased cassava gross income by 22%.

Treatment
application of 300 kg/ha of a special fertilizer (No. 3)e1
Outcome
gross incomee1
Direction
increasede1
Value
22%e1

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

“transfer of cassava technologies”

✓ located verbatim in the source · abstract, characters 271–303 · show in text ↑
e1

“application of 300 kg/ha of a special fertilizer (No. 3) increased the yield by 33% and gross income by 22%”

✓ located verbatim in the source · abstract, characters 2232–2339 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The cassava intercropping practice is widely adopted by farmers at the pilot site in Kongba village, Baisha county, Hainan.

Outcome
widely adopted by farmerse1
Setting
pilot site of Kongba village in Baisha county of Hainane1

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

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

Verbatim

e0

“transfer of cassava technologies”

✓ located verbatim in the source · abstract, characters 271–303 · show in text ↑
e1

“This practice has been widely adopted by farmers in the pilot site of Kongba village in Baisha county of Hainan”

✓ located verbatim in the source · abstract, characters 1302–1413 · show in text ↑

Arachis hypogaea · yield · Manihot esculenta (cassava)Positive and negative results

16 papers: 9 positive, 7 negative or no effect

8 papers in the same direction as this paper · 5 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

12 papers more in this group

See all 16 papers →

Chrysopogon zizanioides · soil: physics · Manihot esculenta (cassava)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

Chrysopogon zizanioides · yield · Manihot esculenta (cassava)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

Arachis hypogaea · soil: physics · Manihot esculenta (cassava)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

intercropping · yield · Manihot esculenta (cassava)Results differ

78 papers: 48 positive, 30 negative or no effect

47 papers in the same direction as this paper · 28 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

74 papers more in this group

See all 78 papers →

trap barrier · yield · Manihot esculenta (cassava)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive
See all 4 papers →

intercropping · soil: physics · Manihot esculenta (cassava)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

5 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

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

See all 153 papers →

8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.