Record Details

Yield Gap Analysis of Major Rainfed Crops of Northern Vietnam Using Simulation Modeling. Global Theme on Agroecosystems Report No. 26

OAR@ICRISAT

View Archive Info
 
 
Field Value
 
Relation http://oar.icrisat.org/2473/
Global Theme on Agroecosystems Report no. 26
 
Title Yield Gap Analysis of Major Rainfed Crops of Northern Vietnam Using Simulation Modeling. Global Theme on Agroecosystems Report No. 26
 
Creator Chuc, N T
Singh, P
Srinivas, K
Ramakrishna, A
Chinh, N T
Thang, N V
Wani, S P
Long, T D
 
Subject Watershed management
Agriculture-Farming, Production, Technology, Economics
Maize
 
Description Total population of Vietnam is 82 million as of today. It is expected to increase to 95 million by 2010 and
126 million by 2020. With increasing demand for food in future, the pressure on uplands and midlands of
northern Vietnam would increase to produce more food for millions of poor residing in Vietnam. Major
crops of northern Vietnam are rice, sweet potato, maize, tea, peanut and soybean, in addition to other
annual and perennial crops. The current study investigated the potential yields; yield gaps and water balance
of maize, peanut and soybean crops, which have high potential in the region. We used crop simulation
models of the three crops and the field data to evaluate the scope for increasing productivity and water
harvesting in the six selected provinces of northern Vietnam. Analysis of the production data revealed that
since 1994–95 the area, production and productivity of these crops have increased substantially. Improvements
in productivity have been obtained with the introduction of improved crop varieties and management practices.
However, large yield gaps still exist which are variable among districts and provinces. Overall, the yield gap
is 1010 kg ha-1 for summer season and 680 kg ha-1 for spring season for soybean; 2650 kg ha-1 for spring
season and 2010 kg ha-1 for autumn season for peanut; and for maize it is 1990 kg ha-1 for summer season and
1650 kg ha-1 for spring season, indicating the potential for future yield improvements. Because of high
rainfall in northern Vietnam, significant amount of surface runoff and deep drainage occurs leading to land
degradation. The vast potential of the rainfed areas of northern Vietnam could be harnessed through large-
scale adoption of integrated genetic and natural resource management technologies in watershed context
for increasing productivity and reducing land degradation.
 
Publisher International Crops Research Institute for the Semi-Arid Tropics
 
Date 2006
 
Type Monograph
NonPeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/2473/1/Yield_gap_analysis_of_major_rainfed_crops_of_Northern_Vietnam_using_simulation_modeling.pdf
Chuc, N T and Singh, P and Srinivas, K and Ramakrishna, A and Chinh, N T and Thang, N V and Wani, S P and Long, T D (2006) Yield Gap Analysis of Major Rainfed Crops of Northern Vietnam Using Simulation Modeling. Global Theme on Agroecosystems Report No. 26. Monograph. International Crops Research Institute for the Semi-Arid Tropics , Patancheru, Andhra Pradesh, India.