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ห้องสมุดกรมพัฒนาที่ดิน

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Abstract

Study on agricultural management accordance by The New Theory concept for

agricultural production in drought risk areas of Northeast Thailand. The objective was
to monitor and assess water status, soil biodiversity, technology and local wisdom

on soil water and plant management, and economic and social conditions. This study
was conducted in areas of representative farmers in fine loamy soil (Khon Kaen), clayey

and fine silty (Chaiyaphum) and coarse loamy (Mukdahan) provinces, who managed

according to New Theory concept in term “Khok Nong Na” and zoning by Agri-Map.
The result found that the most of soil in farmer plots located at upland and some

area in flood plain, low soil organic matter and fertility. As a result of the farmer’s

area management increased in water reservoirs (3,182.4 – 22,550 m ), which the water
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reservoirs are diverse and differ including form, number, and size. The results also

showed that the patterns of water quantity changes throughout time period (January
to June) had both increased and decreased alternately which remained water in farm

more than 50% with sufficient for agricultural production. These changes are

depended on land management, topography, soil property, rainfall, especially in
farmer’s water management. In addition, land management affected on increasing in

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soil biodiversity by increasing in plant species both type and biomass (0.7 - 586.4 t C rai ),
biomass carbon (5 - 5,278 t C rai ) into soil both area of managed Khok and bunded.
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The result also found the amount and type of litter and residue (0.28 - 5.85 t rai )
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reflecting to the activities of surface soil macrofauna and microorganism. In addition,
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the diversity of species and number of macrofauna (41-648 individuals m ) was found
in surface soil in areas of Khok, bunded and paddy field. We also found the carbon

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sequestration in range of 11.1-3,1003.3 t C rai . As a result of land management with
applied technology and local wisdom especially in water management which led to

sufficient water supply for agricultural activities, producing varieties of yields that can

be consumed by households and sold to get income (3,509.3-3 1 1 ,5 1 5 baht year ).
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Finally, farmers as Agri-nature Foundation network emphasized that all farmers should

be considered by continuous self-management to achieve a balance of sustainable
drought prevention and immunity.