Page 70 - Final Report Improving information and developing a repository of sustainable soil management practices in Asia

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6. GREEN MANURE: AN AMAZING CROP FOR SOIL AMENDMENT AND SALINE

SOIL REDUCTION OF THE NORTHEST OF THAILAND (I-SAN)

1. General Information and description of best practice/technology

Information

In the past, besides using Sesbania rostata as a green manure for soil amendment in the

area with saline soil, Land Development Department also promoted using Crotalaria juncea (sunn
hemp) as a green manure plant with the objective to increase organic matter and improve soil.

Moreover, planting and storing seeds can be done more easily than other green manure. This can
also be planted and used as soil amendment together with various approaches, which has been

accepted by farmers in every area. Due to problems of degraded soils used in cultivating industrial

crops for a long time, the soils have been degraded chemically and physically with low fertility.
Soil texture is characterized by being sandy clay loam. Flaky salt stain was found on the soil

surface and the soil is saline with lack of water in the dry season. This also includes the fact that
the area is outside the irrigation zone, making farmers unable to cultivate rice and obtain yields as

needed. As a result, household incomes are low. Therefore, knowledge of using green manure

plants has been implemented in the area with saline soils for growing rice together with using
fermented bio-extracts from banana shoots and chemical fertilizers application according to

advice.

Operating facility Moo 5, Ban Kok Phrom, Non Thai sub-district, Non Thai district, Nakhon

Ratchasima province

Land user Mr. Mana Siangsunthia

Compiler Ms. Wannaporn polsang Land Development Department

Partners Ms. Areerat Wangkaew Land Development Department
Ms. Pitchanun Raksasarp Land Development Department

Ms. Mana Siangsantia Land Development Department

Reviewer Dr. Bunjirtluk Jintaridth

Dr. Prapa Taranet

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