论文部分内容阅读
甘薯品种对不同环境的适应性区别很大。有的品种宜在排水良好疏松的沙土栽培,有的则可适应于粘性或石砾多的土壤;有的耐肥性强,有的则属于省肥品种;有的耐旱力强,有的则能耐涝;有的较能耐寒,有的则喜高温;有的在新垦地上生长好,有的则经多年连作产量仍能稳定。因此,各品种都有其特定的分布地区,不深入了解品种特性盲目选用新品种,往往会“好心办坏事”。调查和研究不同甘薯品种对于不同自然环境的适应性,作为选择品种的依据以发挥良种的增产潜力,提高单位面积产量,是当前甘薯
Sweet potato varieties vary greatly in adaptability to different environments. Some species should be well drained sandy soil cultivation, while others can be adapted to sticky or gravel soil; and some resistance to fertility, and some are fertile varieties; some drought-resistant and strong, and some Can withstand waterlogging; some more able to cold, while others are hi hi; some grow well in the newly reclaimed land, and some even after years of production can still be stable. Therefore, all varieties have their specific distribution areas, do not in-depth understanding of the characteristics of varieties blindly choose new varieties, often “kind-hearted bad things.” To investigate and study the adaptability of different sweet potato varieties to different natural environments as the basis for selection of varieties to enhance yield potential of improved varieties and increase yield per unit area,