Improvement of rice cropping for farming systems in the Mekong Delta, Vietnam

Country
Viet Nam

Description

[Synopsis]

Under Doi Moi policy which started in 1986, farming systems combining agriculture, animal husbandry and fisheries developed widely in the Mekong Delta, Vietnam. Rice production, an important component of farming systems in the Delta, rapidly increased owing to field reclamation, canal excavation and dike construction, and introduction of double or triple cropping of rice together with newly bred high-yielding varieties.
In the collaborative research project with Cuu Long Delta Rice Research Institute, we carried out studies for the improvement of rice cropping. Some useful results were obtained to achieve higher yields of rice. Firstly, leaf color was found to be a good indicator of the leaf nitrogen content which markedly affects the growth, yield components and lodging of rice plants. Fertilizer application can be improved by the diagnosis of nutrient conditions through leaf color measurement. Secondly, top dressing of nitrogen at an early stage of rice development was found to be rather hazardous because of easier and earlier lodging especially in the wet season. Thirdly, drainage of flooding water in rice fields during growth period of rice was effective for the prevention of lodging and for achieving higher yields, as observed in farmers' fields where a rice-fish farming system was adopted.
The results will contribute to the development of low input sustainable rice production in farming systems in the Mekong Delta.

Affiliation

Japan International Research Center for Agricultural Sciences Crop Production and Postharvest Technology Division

Classification

Technical A

Term of research

FY1995-1997

Responsible researcher

KON Tadao ( Crop Production and Postharvest Technology Division )

TAN Pham Sy ( Cuulong Delta Rice Research Institute )

HUAN Tran Ngoc ( Cuulong Delta Rice Research Institute )

KHUONG T. Quang ( Cuulong Delta Rice Research Institute )

DINH Hoang Dinh ( Cuulong Delta Rice Research Institute )

ほか
Japanese PDF

1997_04_A3_ja.pdf831.37 KB

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