水旱轮作对草莓生物学和植物学特性的影响

目的]研究"红颊草莓—空心菜"水旱轮作新模式对草莓生产过程中生物学和植物学特性的影响,为新模式的推广应用提供科学的理论依据。方法]对连续3年种植草莓地块进行"红颊草莓—空心菜"水旱轮作,研究其栽培模式对红颊草莓物候期、株高、成活率和产量的影响。结果]种植空心菜的地块种植草莓,其植株成活率和早期产量分别可达到97.3%和6 219.75 kg/hm2,显著高于休闲地块,对物候期的影响差异不大。结论]连续种植3年的地块初步表现出连作障碍现象,草莓植株死亡率提高,早期产量显著下降;水旱轮作可以显著提高草莓植株的成活率和草莓早期产量,可以克服土壤连作障碍对生产带来的影响。

Effects of Paddy-upland Rotation on Biological and Botanical Characteristics of Strawberry

Objective ] The aim of this study was to investigate the effect of paddy-upland rotation with ＇＂ Strawberry Cultivar Benihope＇ - Water spinach＂ on biological and botanical characteristics in strawberry production, and provide scientific theory basis for the popularization and application of new cultivation patterns. Method] The new model of paddy-upland rotation with ＂Strawberry Cultivar ＇ Benihope＇-Water spinach＂ was applied in the plot which cultivated strawberry continuous for three years. The effect of new cultivation patterns on phenophase, plant height, survival rate and yield of the strawberry were studied. Result] The result showed that the survival rate and early yield of straw- berry can reach 97.3% and 6 219.75 kg/hm2 if we plant strawberry on the soil that has been planted water spinach. The survival rate was much higher than the fallow lands. This cultivation pattern has little influence on phenophase. Conclusion] The soil with successive planting of strawberry for three years showed continuous cropping obstacle. Mortality of the strawberry was much higher than the control, and the output of strawberry per ha was decreased significantly in early stage. The survival rate and early yield of strawberry can be significantly increased by the use of oaddv-uDland rotation. And this Cultivation pattern can also overcome the adverse effect of soil continuous cropping obstacles.