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2005-2007 for three consecutive years in the the Shenyang High JiangYan town double Xu Farm location test. Trial of two early maturing late japonica Changyou 1 Wujing 15 material around the whole amount of straw to field, the amount of fertilizer nitrogen fertilizer and organic manure factors, Research straw and organic and inorganic nitrogen fertilizer on the yield, quality and nitrogen absorption use. The main results are as follows: straw, organic fertilizer, nitrogen fertilizer on yield and its impact: (1) the full amount of straw to field (straw 400kg / acre) rice yield significant effect. Full amount of straw to field rice yield of 9.37kg / acre, an increase of 2.4% in fat-free area, the nitrogen fertilizer district full amount of straw to field yield of 30.57kg / acre, an increase of 5.7%, straw with inorganic nitrogen yield more significant effect. From the production structure in the the nitrogen blank area straw spike by 3.0%, 3.8% grains, grain weight by 0.4%, seed setting rate by 0.9%; straw spike in the nitrogen application area by 2.7% grains by 0.3%, grain weight by 0.2%, seed setting rate by 0.2%. (2) The effect of organic fertilizer rice yield significantly. Application of organic fertilizer in the blank area of ??the nitrogen-rice yield of 35.83kg / mu, an increase of 9.2%; area of ??the straw and organic fertilizer can increase 69.18kg / acre, an increase of 17.2%; straw and nitrogen fertilizers with Shi, organic manure yield 37.21kg / acre, an increase of 6.8%. From the production structure, organic manure, grain weight had no significant effect on seed setting rate, spike greater impact, especially when no nitrogen fertilizer the Fujikawa effect was significant, also have a certain effect on the number of grains per panicle, by the combined effects of the spike and grain number, a significant increase in the per acre spikelets. Straw, organic fertilizer, nitrogen fertilizer on the tiller dynamic: (1) nitrogen, straw reduced tiller reduced peak seedlings, compared with straw to field processing, often Priority No. 1, Wu Japonica 15 respectively 13,400 / acre, down 11.26% and 1.82 million / acre, down 13.48%. In the fertilization area (19kgN / mu), Adding inorganic nitrogen effectively alleviate the impact of straw Tiller, and to promote tillering occurred to some extent, the straw processing not straw, peak seedlings Changyou 1, Wujing 15 03,600 / acre, increased 1.62% and 0.09 million / acre, an increase of 0.24%, the final spike by 13 200 / mu by 8.88% and 0.37 million / acre, an increase of 2.36%. In summary, the District straw in the absence of fertilizer on rice tiller inhibition, but when with a certain amount of nitrogen fertilizer straw promote tillering occurred. (2) The application of organic fertilizer can promote the occurrence of the tiller. Nitrogen, Changyou 1, Wu Japonica 15 varieties of organic manure treatment than non organic manure processing final spike 20,900 / acre, an increase of 21.78% and 1.72 million / acre, an increase of 16.92%. In the the fertilization area (16kgN / acre), application of organic fertilizer processing Changyou 1, Wu Japonica 15 varieties than those without organic manure final spike 22,500 / acre, an increase of 15.54% and 18600 / acres, an increase of 12.53%. 3 straw, organic fertilizer, nitrogen fertilizer on dry matter accumulation: (1) no fat area, the Wujing 15 Changyou the maturity of the 1st straw processing dry matter accumulation than that straw 62.21 kg / mu, 44.00 kg / mu, an increase of 9.43%, 5.51%, respectively. In the area of ??fertilization, straw treatment values ??were similar or slightly larger than the straw processing. (2) application of organic fertilizer to increase dry matter accumulation, especially reflected in the jointing stage in the area of ??non-fertilizer, organic manure to improve the dry matter accumulation up to 30%. Straw, organic fertilizer, nitrogen fertilizer RVA value: (1) straw handle peak viscosity value is higher than the value to field, and the application of organic fertilizer can reduce the peak viscosity. (2) straw processing large breakdown straw, organic manure to improve the breakdown. (3) elimination of base value trend straw handling consumer base value less value to field processing, the processing of organic fertilizers in value than the value of small organic manure. Straw processing less to field dealing with high nitrogen use efficiency by 0.2-0.5 percentage points, with manure handling more organic manure nitrogen use efficiency by 1-5 percentage points, and the greater the proportion of organic fertilizer contained The higher the nitrogen use efficiency.
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