Research Of Integrated Nutrient Resource Management On Rice And Mvrica In High Mountain

In this study, we used field experiments to study the effects of nutrient managemenst on physiological, biochemical indicators and the environment of rice, and yield, quality of red bayberry in mountainous areas. Results were shown as follows:1. The effects of the dry film technology on characters of growth and yield of rice grown in mountainous areas were studied in the field experiments. Results showed that the rice under the management of dry film technology tiller earlier and faster, the numbers of tiller were increased significantly, the peak of tiller were postponed, and their peak was later than conventional rice for 5 days. In the nitrogen of the 122 kg/hm2, the number of the large tillers of rice was the biggest, compared to the conventional rice, they were increased by 18.2%. The height of the rice under the management of dry film technology was higher than conventional rice. The height of rice in the nitrogen of 122 kg/hm2 was the highest, which was 119.1cm. Under the same fertilization, the yield of rice under management of dry film technology was significantly higher than conventional rice. With the amount of nitrogen increased, the field of rice under management of two technologies increased significantly. The dry film technology could improve the panicles and N recovery efficiency, and reduced the setting rate of rice, each grain number and had little effect to grain weight. Overall, the dry film technology is better to growth and development of rice2. The effects of the dry film technology on soil fertility were studied in the field experiments. Results showed that the dry film technology improved pH in soil, and the organic matter content the rice field soil under management of the dry film technology was significantly lower than soil of conventional rice. In the 0 kg/hm2 (N1), 122 kg/hm2 (N2),176 kg/hm2 (N3) of the nitrogen application, the organic matter contents of soil under the dry film technology were low by 11.6%,11.9%,12.4% as compared with conventional rice, the differences reached significant levels. In conditions of nitrogen, nitrogen content of soil under the dry film technology was significantly higher than conventional rice. The dry film technology could improve soil phosphorus, reduced content of available K. Dry film technology could significant changes soil conditions.3. Using "DongKui" bayberry as the test plant, the effects of different antifreeze patterns on grain yield and fruit quality of bayberry grown in mountainous areas were studied in the field experiments. Results showed that compared to the control, the antifreeze patterns significantly reduced the decline rate of the nitrogen, phosphorus and potassium contents of bayberry leaves in winter, the effect of the greenhouse pattern was the best, the decline rate was 11.0%,20.3%,16.5%, and the water content of bayberry leaves under greenhouse pattern remained stable in the winter period. The antifreeze patterns could promote the growth of spring shoots and increased the nitrogen content of theirs. Compared with the control, the increasing rate of nitrogen content of spring shoots under greenhouse pattern was the biggest which was 14.6%. The antifreeze patterns significantly increased the nitrogen, phosphorus and potassium contents of fruits that effects of greenhouse pattern were the best. Compared to the traditional antifreeze patterns, the greenhouse pattern significantly improved weight, soluble solids, sugar and vitamin C content of the bayberry fruit, and reduced the acidity of fruit, and then improved fruit quality of bayberry. The yield of bayberry under greenhouse pattern was the greatest; compared with the control; it was significantly increased by 78.4%.