Abstract: The study with stronger tillering hybrid rice ‘D-you 527’ showed that the more the irreg-ularity of the seedlings horizontal distribution, the more colony stem-tillers the plants would have. Such a difference was significant 34 days after transplanting, but not significant at full heading stage. After transplanting, the trend that the variation coefficient increased with increasing irregu-larity of horizontal distribution presented gradually, and the difference became significant after joint-ing stage. Comparing with uniform distribution, an irregular horizontal distribution of the seedlings could benefit the canopy light transmittance rate and the panicle characteristics of rice.

Key words: Miyun reservoir, Castanea mollissima B1 forest, Nutrient elements, Bio-cycling