磷高效基因型相对荚果产量和收获系数高于磷低效基因型。
Relative yield and harvest coefficient of P-efficiency variety were higher than those of P-inefficiency variety.
本文针对甘蔗收获机械的设计特点，将对象-关系数据库管理系统技术引入设计系统中。
Based on the design feature of sugarcane harvester, this paper aim to introduce the object-relation database managing system technology into the design system.
高收获数量，低成本，更高的效率，土壤侵蚀少等优点，是支撑这些微灌溉系统普及的重要系数。
Advantages such as high crop yield, low cost, better efficiency and low soil erosion are presumed to play a key role in prompting such micro irrigation systems usage.
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