【摘要】 为探索马铃薯生产中使用肥料增效剂替代部分化肥施用量,且不降低马铃薯产量和品质,采用随机区组试验设计,以马铃薯品种‘垦薯1号’为材料,以减少10%化肥、添加相同量增效剂的不同施肥量为处理,生产上常规施化肥40 kg/667m~2为对照,研究使用肥料增效剂替代10%化肥施用量对马铃薯株高、茎粗、主茎数、单株结薯数、大中薯率、产量、淀粉和干物质含量及淀粉粘度和糊化温度的影响。结果表明,45 kg/667m~2掺混肥与5 kg/667m~2增效剂和36 kg/667m~2掺混肥与4 kg/667m~2增效剂在株高、主茎数、产量、糊化温度、峰值粘度和经济性状方面均高于掺混肥40 kg/667m~2,且存在显著差异。其中45 kg/667m~2掺混肥与5 kg/667m~2肥料增效剂混施后较施用掺混肥40 kg/667m~2提高马铃薯产量467 kg/667m~2,经济效益增加428元/667m~2。可见,45 kg/667m~2掺混肥与5 kg/667m~2增效剂能够取得较好的产量和经济效益。更多还原

【Abstract】 The effects of 10% fertilizer reduction combined with addition of the same amount of synergist, as compared to conventional fertilizer application rate of 40 kg/667 m~2, were studied on plant height, stem diameter, number of main stems per plant, number of tubers per plant, medium-and large-sized tuber percentage, yield, starch and dry matter content, starch viscosity and gelatinization temperature in a randomized complete block design using the variety ’Kenshu 1’as plant materials in order to explore the use of fertilizer synergist as a partial substitution for chemical fertilizer in potato production, and at the same time not to reduce the yields and qualities of potatoes. The plant height, main stem number,yield, gelatinization temperature, peak viscosity and economic characters of the 45 kg/667 m~2 mixed fertilizer plus 5 kg/667 m~2 fertilizer synergist and 36 kg/667 m~2 mixed fertilizer plus 4 kg/667 m~2 fertilizer synergist were all higher than those in the40 kg/667 m~2 mixed fertilizer, with the difference being significant. The treatment of 45 kg/667 m~2 mixed fertilizer plus 5 kg/667 m~2 fertilizer synergist increased the potato yield by 467 kg/667 m~2 compared with the 40 kg/667 m~2 mixed fertilizer, and the economic benefit increased by 428 Yuan/667 m~2. These results indicate that 45 kg/667 m~2 mixed fertilizer plus 5 kg/667 m~2 fertilizer synergist could achieve better yield and economic benefits.更多还原