COMPARATIVE ANALYSIS OF DIFFERENT FLOODING METHODS USED FOR RICE CULTIVATION AT THE STATE RICE FARM ‘’BOSHOD’’

Sylvester Achio, Felix Kutsanedzie, S Kurmanbaev

Abstract


A field experiment was carried out at the State Rice Farm of Boshod in the Chimkent Region, the Republic of Kazakhstan, to compare and contrast the effects of four flooding methods on the production  of  the  rice    variety  ‘’Uros-59’’.  The  flooding  methods  included:  deep  flooding  (20cm)  – Ao; shallow flooding (10-15cm) - A1; initial shallow flooding (10-15cm) with intermittent renewal of water -A2 and moistening the soil up to the tillering phase of the rice before flooding (15cm) -A3. The percent germination, biometric measurements, leaf surface area and yield levels of the rice plants grown under the different variants of flooding were taken; and the economic rentability of the different flooding methods for the rice production calculated. The deep flooding method-(Ao) showed the lowest (70%) seed germination rate. Generally, the variant A3 exhibited outstanding results with the highest percentage of seed germination (90 %) and comparatively good physiological growth of the rice  variety  “Uros-59. With the A3 variant the quantity of irrigation water used was about 2000 m3/Ha lower than the control (Ao). Variant A3 also registered relatively the highest yields (68.5centiner/Ha) and the most rentable method of irrigation (100 %). The variant A3 was, therefore, recommended for the State Rice Farm at Boshod.


Keywords


Intermittent; Germination; Biometric; Variants; Rentability

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