摘要
水稻垄作栽培技术有明显的增产效果,经研究结果表明,其增产效应主要在于微地形的改变(设置垄和沟)和实行浸润式灌溉,协调了土壤水、气关系,降低土壤还原性有毒物质对水稻生长发育的不良影响;提高光能利用率,促进水稻光合作用;土壤供肥稳健,满足水稻生长发育需要;降低田间湿度,减轻水稻病虫害发生。因此,水稻生长快、分蘖早、有效穗多、成穗率高、穗粒数、结实率、千粒重大,构成了水稻产量极显著的增产效应。适应于除漏水漏肥严重的“筛子底出”和带状梯田外的所有稻田,在我区应以推广“1m包沟垄作”模式为宜。
The yield increase effect of the cultivation technology of rice ridge culture has been obvious .Researches showed that the main causes were the change of micro-topography (the setting up of ridges and furrows) and the carrying out of soaking irrigation. Thus, the relationship, of soil water and soil air were in harmonic condition, the influence of soil reductional toxic materials to the growth of rice was reduced; the utilization ratio of light energy was raised up and thus the photosynthesis of the rice was promoted; the supply of fertilizer to the rice was stable and thus fufilled the need of the growth of rice; the humidity of the field was reduced and thus the harm of diseases and pests was lightened, As a result, the rice could grow well completely and the effect of yield increase was obvious
出处
《广西农学报》
1994年第1期1-9,共9页
Journal of Guangxi Agriculture
