EFFECT OF THE SYSTEM OF RICE INTENSIFICATION (SRI) ON ...

Type of fertilizers used by farmers with amount, application per year and total history of
application.
Applied materials % of farmers Kg/m 2
# of applications year -
1
Years of
application
Compost 53,33 0.33 + (-) 0.49 1,4 + (-) 0.63 5 + (-) 10
Green manure 73,33 1.90 + (-) 7.24 1.45 + (-) 0.67 9 + (-) 11.79
Organic fertilizers 13,33 0.01 + (-) 0.02 1 1
Chemical fertilizers 13,33 0.004 + (-) 0.02 1.25 + (-) 0.5 7.67 + (-) 10.69
Percentage of farmers combing different kinds of fertilizers.
Applied materials % of total # of farmers % of group
Compost and Green
manure
20 42,67
Compost and Organic
fertilizers
Green manure and
organic fertilizers
Green manure and
chemical fertilizers
Compost, green
manure and organic
fertilizer
Compost, green
manure and chemical
fertilizer
10 21,43
3,33 7,14
6,67 14,29
3,33 7,14
3,33 7,14
Rice varieties.
Percentages in brackets indicate the percentage of farmers who cultivated these varieties.
Dorn Neb (80%) Sorsor Rang Cheay Kum Srov Phakarmodul Kror Ob
Mrom (70%) Neang Meas Torng Chhuk Chheing Ses Sen Pidao Ka Prom
Somaly (45%) Kro Orb Phka Ten Leung Tek Kror Ya Orn Lov
Kror Sang
Phmor Moung Many Pdao Pen Neang Sar Thmor Teab
Neang Kong Pkar Mlis Orsar Kro Ourb UA Moung Mong Pdaov
Chom Reuom Ornoub Thom Bam Larr Chmar Tot Sa Ang E Aer
84