Rice rice-shaped trees and some characteristics. Have the ability to compete with weeds were quite high as the height of style. Leaves spread to cover an area obscured by blocking light, that light shines through the trees to the ground. The amount and intensity of light at the surface low. The germination of some weed species decline. And slow the growth of seedling weeds down. In dry conditions, DWR has studied rice varieties have the ability to compete with weeds. Which aims to study their ability to compete with weeds, some varieties of rice varieties Excellence in dry seeded rice in the Northeast. The results showed that the condition allowing competition with weeds. In white jasmine rice 105, and RD 23 to find the number of trees and weeds dry weight remained relatively low from these results. Show that species KDM 105 with the high style. The leaves are long and wide spread weeds can not grow up. Or reduced Especially KDML 105 will yield higher than other varieties. When there is competition with weeds in the rainfed.
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