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โครงการหนังสืออิเล็กทรอนิกส์ด้านการเกษตร เฉลิมพระเกียรติพระบาทสมเด็จพระเจ้าอยู่หัว

rice cultivated area) have a higher probability of participation than small-scale farmers.
Conventional Jasmine rice farmers in rainfed areas have a higher likelihood of participation in the
project than farmers in irrigation areas and organic rice farmers as well. The latter is true because
most organic rice farmers already support market efforts to sell at a higher price, so they have no
motivation to participate in this project.

3) Rice storage methods to maintain rice quality.
It was found that organic Jasmine rice farmers in rainfed areas tend to have the best
quality of rice yields storage with the highest head rice percentage and the lowest broken rice.
This corresponds with the experimental research in which large-scale farmers have a lower rice
quality than minor farmers, and the humidity deviations of Jasmine rice in each area do not
demonstrate much difference. It is found that the 2AP amount of organic Jasmine rice in rainfed
areas tends to be more than that of conventional Jasmine rice growing and irrigation areas.
However, the deviation in the 2AP value after barn rice storage does not vary much due to
environmental and production patterns. It was found that the deviations of moisture content and
2AP varied due to barn leakages and sun-covering, affecting rice quality. The high-leakage barns
tend to raise the humidity of stored Jasmine rice paddies, and low leakage barns have the
greatest percentage of chalky grain. While the deviation of Jasmine rice quality varies due to the
foundation material and raised flooring of the barn, the Jasmine rice which is stored in soil-
foundation barns has a lower moisture content than the barn foundation material consisting of
cement, rocks, or nonraised flooring. Farmers who stored their rice in piles or packed in hemp
sacks tended to have a lower moisture content than fertilization, livestock feed sacks, or sugar
sacks. Hemp-sack rice storage has the lowest percentage of broken rice and a slight increase in
chalky grain along with a 2AP that decreased less than other storage methods. It was found that
the storage method is unable to describe the deviation of moisture content, head rice
percentage, and broken rice percentage, but it can describe the chalky grain deviation. The more
leaky barns have a greater probability of a higher chalky rice percentage, and storing rice packed
in sugar sacks has a higher probability of chalky grain occurrence than piling storage. Other factors
have no statistically significant relationship to chalky grain occurrence.
It was found that the Jasmine rice quality, as measured in both head rice percentage
and 2AP, decreased over storage time. Jasmine rice had the highest 2AP value in the first month
rd
of rice storage, then it decreased drastically in the 3 month. Organic Jasmine rice has a greater
head rice percentage and 2AP than conventional Jasmine rice. Moreover, Jasmine rice quality
varies due to the storage type and location. Wooden-barn rice storage has the highest overall
quality, while tin-barn rice storage has the highest temperature and humidity in rice piles and the
lowest humidity, 2AP amount and revenue that farmers receive from rice storage. House-kept rice
storage has the highest moisture content and the lowest head rice percentage. Moreover, using
coated-fertilizer sacks produce a high humidity paddy, low head rice percentage, high broken rice,
and low 2AP. In order to meet trade standards and maintain the quality of fragrance, the
appropriate storage methods should be adjusted for different types of barns/storage areas.
From the study result, there are two significant policy recommendations:

1) Recommendation related to rice supply management and the barn-pledging scheme
1.1) The passing of the barn-pledging scheme had few participating farmers, and most
of them were large-scale farmers. The operation of this government project should be
maintained continuously over the long term, and the benefits should be clearly calculated such

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