论文部分内容阅读
水稻机械化抛秧具有省工、省力、省种、省苗床、抛秧匀、效率高、成本低、适应性强等优点。但必须做好抛秧的前期工作。根据近几年的实践,简谈一些做法。一、育秧阶段:首先挑选优质种子,筛选晒种,用石灰水浸泡24小时,覆盖增温催芽。二是选用无草籽的壤质土,粉碎过筛,按8:2土肥掺兑混入腐熟猪圈粪,加入氮、磷、钾三元水稻复混肥(16:10:8),搅拌均匀,作为营养土。三是以561个孔的塑料秧盘为例,每孔按3～5粒种子(千粒重25克)称出干种子49克,催芽露白,按30%吸水加
Rice mechanized throwing seedlings with labor, labor-saving, provincial species, provincial seedbed, throwing uniform, high efficiency, low cost, adaptability and so on. However, preliminary work on throwing rice must be done well. According to the practice in recent years, briefly discuss some practices. First, the seedling stage: First, select the high-quality seeds, screening Sun species, soaked in lime water for 24 hours, covering the warming germination. The second is the use of grassy loamy soil, crushed and sieved, according to 8: 2 soil mixed with mixed fertilized pigpen dung, add nitrogen, phosphorus and potassium ternary rice compound fertilizer (16: 10: 8), stir , As a nutrient soil. Third, the plastic seedlings of 561 holes for example, each hole by 3 to 5 seeds (grain weight 25 grams) weighed 49 grams of dry seeds, germination dew white, according to 30% water absorption plus