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Tao source for special ecological areas in Yunnan ecological advantages of high yield, clear various ecological factors on the contribution of super high yielding rice and special super high-yielding rice ecological zone is characterized by its response to the current high-yielding special ecological zones go deep ecological research key points. In this study Hybrid Rice Ⅱ You 107 for the material, respectively, in Nanjing, Jiangsu, Yunnan Tao source and the optimum planting season planting, systematically expounded the special ecological zones super rice population quality, carbon and nitrogen metabolism and grain quality characteristics and their impact on nitrogen fertilizer responses. The main conclusions are as follows: 1, the special ecological zones Ecological characteristics of super high-yielding rice Ⅱ You 107 Tao source planting grain yield in 2006 was 18.6 t ha-1, 2007 year 17.7 t ha-1, respectively, 2.1 times and 1.9 in Nanjing times, analyze its yield components mainly in Tao Yuan planting can accommodate more effective ear, an increase of grain storage capacity. Compared with planting in Nanjing, Ⅱ excellent 107 in Tao Yuan grown longer growing period, crop growth rate increased, which extend nearly vegetative growth 30 d, filling stage crop growth rate increased by 1.3 times, so Ⅱ You 107 planted in Tao Yuan has a high biological production. Heading stage Tao source of leaf area index of 5.0 or more, than the leaf area index of Nanjing 3.3, higher than 49.6%, which is the source Tao filling stage with high physiological basis of crop growth rate. Two-year maturity Tao source of biomass reached 30.1 t ha-1, 29.4 t ha-1, 84.7% higher than the Nanjing High and 61.5%. Compared with Nanjing ecological conditions, Tao Yuan rice vegetative stage of photosynthetically active radiation for two years respectively, compared with 15.4% in the Nanjing High and 19.3%, grain filling period compared with 16.8% in the Nanjing High and 14.0%. Vegetative growth of high radiation levels, temperature, and humidity is low, is conducive tiller; filling stage light enough, temperature and humidity conditions are suitable and stable help after heading a high accumulation of high transport, in order to achieve high rice production. 2, special ecological zones super rice population quality characteristics of Tao Yuan rice panicle initiation stage before and after heading dry matter accumulation and crop growth rate was significantly higher than the general ecological zones, a substantial increase in biomass production, the increase in nitrogen fertilizer and the former are increasing the proportion of nitrogen backward so that the total biomass yield first and then decreased, respectively, in nitrogen fertilizer 375.0 kg ha-1, Basal fertilizer: panicle of 5:5 maximum. Tao source of yield components in panicles significantly higher than the general ecological zones, expanding grain storage capacity, the maximum effective panicles also nitrogen fertilizer 375.0 kg ha-1, Basal fertilizer: panicle of 5:5 is obtained. Tao source of rice heading stage leaf area of ??more than 10.0, leaf type is more compact and has a higher base transmission rate, ensure a higher yield population filling stage photosynthetic production capacity, increase in nitrogen fertilizer increased leaf area, with nitrogen before after the shift to increase the proportion of leaf area slightly decreasing trend. 3, a special ultra-high-yielding rice ecological zones nitrogen metabolism characteristics of Tao Yuan rice plants vegetative organs and panicle nitrogen content were lower than the various stages of growth period in Nanjing, but the total nitrogen in dry matter productivity was significantly higher than the general eco- area, up 31.8 percent total nitrogen uptake, differences are mainly derived from its heading to maturity, the special ecological zones of dry matter production rate of 18.8% nitrogen, nitrogen absorption rate of 10.5 times relative to general ecological zones, while nitrogen The core indicators rice production efficiency was significantly higher than the general ecological zones. Heading stage before the vegetative organs of special ecological zones carbon metabolism, panicle initiation and heading stage C / N ratio of 1.6 times the general ecological zone and 2.2 times, while filling stage vegetative organs significantly reduced carbon metabolism, carbon metabolism spike strong, the carbon content was significantly higher than the general ecological zones. Two ecological zones respectively, in nitrogen fertilizer nitrogen utilization 375.0kg ha-1 and 180.0 kg ha-1 maximum, significantly higher than other treatments. With the increase in the amount of nitrogen, two ecological zones Nitrogen Nitrogen Nitrogen rice production efficiency and continue to lower harvest index, the relative uptake nitrogen absorption rate and rising, but excessive nitrogen increase is not obvious, or even lower. Processing of different nitrogen ratio, the special ecological zones Basal fertilizer: panicle nitrogen utilization for the treatment of 5:5 maximum, its high nitrogen harvest index. The general ecological zones Basal fertilizer: panicle nitrogen utilization for the treatment of 6:4 was significantly higher than other treatments, and its nitrogen harvest index, nitrogen heading to maturity productivity of dry matter, nitrogen efficiency of rice production are higher than other treatments. Front setback for two nitrogen ecoregion carbon metabolism and carbonitrides rice plants significantly affected coordination and trend. The first two ecological zones panicle plant carbon content and C / N with the increase of nitrogen fertilizer decreased, while with the panicle after heading the administration, tillering fertilizer: panicle for the treatment of ear 5:5 C / N higher vegetative organs between the various N treatments C / N was not significant. 4, special ecological zones Super Rice Grain Quality Characteristics Compared with Nanjing, Yunnan Tao Yuan special ecological zones significantly reduce rice chalkiness, aspect ratio decreases, the protein content decreased, other quality indicators was no significant difference. With the increase in the amount of nitrogen, Tao Yuan rice brown rice rate, milled rice rate, milled rice rate increased, the same trend with Nanjing; Tao Yuan rice gel consistency and amylose content of nitrogen fertilizer 375.0kg ha-1 the lowest protein content then rising, are consistent with the general ecological zones. With the increase in the proportion of Nitrogen shift, Tao Yuan tillering rice quality in the base: panicle of 6:4 processing brown rice rate, milled rice rate, milled rice rate, protein content max.
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