1990年597农场4分场6445亩直播甜菜,平均亩产2431.2kg,实现了甜菜单产,总产双超历史的新水平,其中有6个单位4525亩甜菜亩产超过2500kg,占总播种面积的70％,创产值240多万元。其增产原因有以下几方面:1.合理轮作:在轮作时,采取统种、分管、分收,保证轮作制度的正常实施。甜菜播在伏、秋翻地上,豆茬占70％、麦茬占30％。2.一次播种保全苗:根据当地气候条件,以5月上旬为最佳播期,采用甜研301磨光种子, 1990 597 farms 4 6445 acres of live beet, the average yield 2431.2kg, to achieve a sweet beet yield, total double super history of the new level, of which 6 units 4525 acres of beet per mu more than 2500kg, accounting for the total sown area 70%, a production value of more than 240 million yuan. The reasons for the increase in the production of the following aspects: 1. Reasonable rotation: In the rotation, adopt the same species, in charge, points, to ensure the normal implementation of the rotation system. Beets sown in volts, autumn turned on the ground, 70% of stubble, stubble accounted for 30%. 2. A seedling security seedlings: According to local climatic conditions, in early May for the best sowing, sweet grinding 301 seeds,