Linear programming-based optimization of the productivity and sustainability of crop-livestock-compost manure integrated farming systems in midlands of Vietnam

Thai Thi Minh, Sanaratne L. Ranamukhaarachchl, H. P W Jayasuriya

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Farmers' livelihood in the midlands of the northern part of Vietnam relies mainly on crop production and livestock rearing. Green manure and animal dung are commonly used for crops, particularly in rice culture - a staple food crop, and sugarcane - a cash crop. Due to the small-scale livestock systems, the animal dung is limited, which results farmers in preferring a smaller sugarcane cultivation area. This research study was to investigate and to optimize the effect of animal and green manures and their combination together with heat-compost technique on the improvement of the quality of organic manure, soil fertility and yield in three farm categories. The study revealed that the farmers in the small, medium and large farm categories should raise livestock up to 4 pigs and 3 buffaloes, 7 pig and 5 buffaloes, and 20 pigs and 13 buffaloes, respectively to match with the available resources. The optimized livestock herd holding and sugarcane cultivation area resulted in 88.7% increase of the return from livestock and 62.5% from crops in the small farm size, 25% from livestock and 9% from crops in the medium farm size and 171% from livestock while unchanged from crops in the large farm size.

Original languageEnglish
Pages (from-to)187-195
Number of pages9
JournalScienceAsia
Volume33
Issue number2
DOIs
Publication statusPublished - Jun 2007

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integrated agricultural systems
composted manure
linear programming
Vietnam
livestock
crops
farm size
sugarcane
buffaloes
large farms
green manures
farmers
animal manures
swine
feces
cash crops
small farms
staple foods
food crops
livelihood

Keywords

  • Animal dung
  • Heat-compost manure
  • Linear programming
  • Livestock
  • Sugarcane
  • Vietnam

ASJC Scopus subject areas

  • General

Cite this

Linear programming-based optimization of the productivity and sustainability of crop-livestock-compost manure integrated farming systems in midlands of Vietnam. / Minh, Thai Thi; Ranamukhaarachchl, Sanaratne L.; Jayasuriya, H. P W.

In: ScienceAsia, Vol. 33, No. 2, 06.2007, p. 187-195.

Research output: Contribution to journalArticle

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