英语水平太次，论文摘要翻译搞不定，求各位大侠帮忙！

This test with straw, edible fungi residue material, wood chips for material, mixed with the paddy soil in different volume as a machine base matrix, studied the different substrates, heap retting and heap retting, nitrogen content of cropping machine plug seedlings growth, plant root and the impact of production. The results are as follows: (1) the use of straw, bacteria makings, sawdust and soil preparation of rice seedlings matrix, light texture, large porosity, seedling root growth and development, seedling root number per more than paddy soil matrix. (2) straw substrate via retting, better substrate and fertilizer fusion, soft matrix, conducive to the seedlings to grow. High germination rate increased by 4.79% to 4.79%, the seedlings seedlings, root number and dry weight is better than not heap retting processing, the quality is good. (3) in each of the 100 litres of seedlings matrix from 300 g compound fertilizer, and under the premise of not heap retting. 1) added three kinds of material base matrix, early rice seedling stem base width and dry weight per plant, root-shoot ratio, leaf age, and so on are weak in the paddy soil, become short seedling height, seedling quality decrease. After transplanting Honda, green time is long, tillering, slow start production is reduced. (2) straw and bacteria each matching matrix, along with the increase in material proportion of the seedling quality becomes poor, better with the ratio of 1:1, 3-1 and full of sawdust and wood chips matrix is better. Yield with the ratio of 3:1, the largest wood substrate integrated optimal performance. (3) late rice in the field seedlings, the quality of seedlings is superior to the control process, the field rooting ability is strong, tillering quickly after planted, strong power, high earing rate. Production in addition to the straw 3:1, 1:3, were lower than that of paddy soil. (4) in each of the 100 litres of seedlings matrix from 600 g compound fertilizer, and heap retting under the premise of fully. Straw substrate is higher than that of paddy soil, germination rate and sawdust matrix seedling seedling height, stem width, root number per, starch content were superior to control, the quality advantage. And bacteria makings quality of seedlings and paddy soil. (5) with the increase of culture n application early rice seedling leaf age increase, significant difference between N5 and N1, two long leaf sheath increase gradually, but with the increase of gradually growing fertilizer consumption growth effect is not obvious. Seedling rate, seedling height, stem width and leaf SPDA value, the plant leaf, dry weight of root, the rooting ability in the field has a tendency to increase after decreases first. Soluble sugar content of the seedlings are processed with low fat more, too much nitrogen fertilizer, is not conducive to the accumulation of soluble sugar. Seedling quality with N3 comprehensive performance of the optimal, N2 N4 interchange and the quality is better also (6) with urea fertilizer, produce ammonia, dressing time is short, increased fertilizer consumption culture is easy to cause to burn bud, adverse emergence of rice, emergence rate drop, leakage hills, lower quality of machine. Therefore, the production should be fertilizer as soon as possible, and should not be using urea fertilizer. (7) after transplanting Honda and improving the processing of nitrogen content, early tillering start fast, earlier had more stem tillers number, to ensure the adequate panicles, effective spike increasing, the highest yield of early rice in N3, late rice with highest N4 interchange. To sum up: the basic material part or all of straw, wood chips, bacteria instead of paddy soil as base matrix, the appropriate fertilizer consumption and full of retting, can offer better than that of paddy soil matrix for rice seedling growing conditions, can develop a more robust machine plug seedlings, volume ratio of 3:1 as appropriate. Straw mixed with the paddy soil to volume ratio 3:1 plug seedlings matrix as a machine, every 100 litres of substrate culture of nitrogen amount to 90 ~ 100 g is advisable. Key words: machine planting, raising seedling substrate, n application rate, seedling quality, production

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