Paper · 1995 · CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research)

On-farm research and transfer of technology for cassava production in Vietnam

Kim Hoang; Van Son Tran; Van Thang Nguyen; et al.

6
claims
8
verbatim quotes
0
citations
2
research areas
✓
Open access · other-oa

Abstract

In Vietnam, extension activities are considered by the government as an urgent and longterm measure, that has a great influence on the production process of farmer commodity production. Among extension objectives, cassava production is given great importance in those areas where appropriate conditions for its development exist. This paper presents an overview of the extension strategy, structure and organization in Vietnam, the linkage of national cassava research and extension organizations, and the objectives and methods of extension activities in Vietnam. This paper also analyzes in detail the results of on-farm research and transfer of technology for cassava production conducted by the Hung Loc Agricultural Research Center. Among the initial achievements is the release of cassava varieties HL-20, HL-23 and HL-24, which are now grown in thousands of hectares every year. A cultural technique of intercropping cassava with mungbean, peanut and winged bean has obtained satisfactory results, contributing to increased farmer income and the maintainance of soil fertility. Cassava germplasm introduced from the Thai-CIAT program is very promising, in particular Rayong 60. This variety is now released by MAFI for multi-locational field trials and dissemination in production fields. A research and extension network for cassava production in Vietnam has been established by linking the National Food Crops Program with the National Extension Program with the support of international organizations such as CIAT, CIP and IDRC. Through this network, new cassava varieties and advanced cultural techniques will be transferred to production fields very quickly

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 6

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Cassava varieties HL-20, HL-23 and HL-24 were released and are grown annually on thousands of hectares.

Material
HL-20, HL-23 and HL-24e0
Outcome
releasee0
Value
thousands of hectarese0

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

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

Verbatim

e0

“release of cassava varieties HL-20, HL-23 and HL-24, which are now grown in thousands of hectares every year”

✓ located verbatim in the source · abstract, characters 776–884 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intercropping cassava with mungbean, peanut and winged bean increased farmer income.

Treatment
intercropping cassava with mungbean, peanut and winged beane0
Outcome
farmer incomee0
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

“intercropping cassava with mungbean, peanut and winged bean has obtained satisfactory results, contributing to increased farmer income and the maintainance of soil fertility”

✓ located verbatim in the source · abstract, characters 910–1083 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intercropping cassava with mungbean, peanut and winged bean maintained soil fertility.

Treatment
intercropping cassava with mungbean, peanut and winged beane0
Outcome
soil fertilitye0
Direction
maintainancee0

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

“intercropping cassava with mungbean, peanut and winged bean has obtained satisfactory results, contributing to increased farmer income and the maintainance of soil fertility”

✓ located verbatim in the source · abstract, characters 910–1083 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Introduced cassava germplasm, particularly Rayong 60, was judged promising.

Material
Rayong 60e0
Outcome
very promisinge0

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

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

Verbatim

e0

“Cassava germplasm introduced from the Thai-CIAT program is very promising, in particular Rayong 60”

✓ located verbatim in the source · abstract, characters 1085–1183 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Rayong 60 was released for multilocation field trials and dissemination.

Material
Rayong 60t1
Outcome
released by MAFI for multi-locational field trials and dissemination in production fieldse0

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

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

Verbatim

e0

“This variety is now released by MAFI for multi-locational field trials and dissemination in production fields”

✓ located verbatim in the source · abstract, characters 1185–1294 · show in text ↑
t0

“cassava”

✓ located verbatim in the source · title, characters 48–55 · show in text ↑
t1

“Rayong 60”

✓ located verbatim in the source · abstract, characters 1174–1183 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

A cassava research and extension network was established in Vietnam.

Outcome
research and extension networke0
Setting
Vietname0

Not reportedComparatorValue

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

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

Verbatim

e0

“A research and extension network for cassava production in Vietnam has been established by linking the National Food Crops Program with the National Extension Program”

✓ located verbatim in the source · abstract, characters 1296–1462 · show in text ↑

Vigna radiata · yield · Manihot esculenta (cassava)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

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

  1. negative
  2. no effect
  3. positive
See all 4 papers →

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 →

Arachis hypogaea · soil: chemistry · 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 →

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 →

intercropping · soil: chemistry · Manihot esculenta (cassava)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

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

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.