播种量的英文
amount of planting seed
distribution rate
feed quantity
rate of seeding
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例句与用法
更多例句： 上一页 - The virginia wheat myr provided the basis for establishment of a number of best management practices ( bmps ) for higher yields including time of n application , row - widths , varieties , seeding rates , use of growth regulators , use of fungicides and insect scouting
弗吉尼亚小麦最高产量研究提供了建立许多能获得高产的最好管理措施（ bmp ） ，包括施肥期、行距、播种量、使用生长调节剂、使用除真菌剂和虫情监测。 - The sub - model for design of population density was developed according to the principle of determining boll number from target yield , fruit node from boll number , fruit branch from fruit node and population density from fruit branch by integrating the effects of sowing date , cutout date , effective temperature accumulation above 12 , variety type , and fertilizer and water management levels . sowing rate was then decided by integrating the effects of different soil water and salt contents , ph , temperature and sowing style on seedling emergence rate with relative weight method
基于“以产定铃、以铃定节、以节定枝、以枝定苗”的原理，同时考虑播种日期、打顶日期、 12的有效积温、品种株型特性、肥水管理水平差异等因素来确定适宜的种植密度；在此基础上，应用相对权重法计算土壤含水量、含盐量以及整地质量和播种方式等多个生态环境因子对出苗率的综合影响，进而确定播种量。 - Based on the sum - up and abstraction of the relationships of rapeseed growth characters with ecological environment , cultivar type , production condition and yield target , a dynamic knowledge model was developed by using knowledge engineering and system modeling method , which could be used for designing a suitable sowing and transplanting scheme of different rapeseed varieties under different spatial and temporal environments
摘要运用知识工程和系统建模方法，在总结、归纳和提炼油菜生长发育与生态环境、品种类型、生产技术水平和产量目标关系的基础上，建立了具有时空适应性的油菜播栽方案设计的动态知识模型，可用于精确定量不同环境和生产条件下油菜品种的适宜播期、基本苗、播种量和移栽方案。
