轮作方案 rotation plan(0)   相似匹配句对      The scheme overcomes the disadvantage of the C.      该方案克服了C. 短句来源      Through comparison of our scheme and Ateniese et al.      (2000)方案。 短句来源      Soil and Water Conservation Efficiencies of several Rotation Patterns on the Loess Plateau of Eastern Gansu.      陇东黄土高原若干轮作技术方案水保效能评价分析 短句来源 查询“轮作方案”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   rotation plan Developing a job rotation plan requires determining the set of jobs to be included in the rotation, the rotation sequence, and the proper length of the rotation interval. 例句来源       Previous research has considered both the jobs to include in a rotation plan and how to sequence the rotation plan but no work has been conducted to quantitatively examine different rotation interval lengths. 例句来源       Land used for row crops benefits from a year or more in pasture as part of a crop rotation plan. 例句来源       See the US Army rotation plan for Afghanistan, as presented in a briefing on 23 Jul 03. 例句来源                In this paper the soil moisture dynamics of rotation period(Summer crops→Autumn crops→legume crops)on terrace field,frank fieldand slop field in semi-arid area of central Gansu has been studied.Therule of soil moisture of rotation period in all of the threc field types isfrom slightly decrease to decrease then increase. Based on yearly andvertical difference of the soil moisture,we have concluded that the cropand the field type have more influence on soil moisture than other factorsbesides rainfall and tran...             本文通过对陇中旱农地区梯田、川台、坡地轮作周期土壤水分动态的定位研究指出：在当地夏作→秋作→豆类的轮作过程中，３种土地类型的土壤水分都有一个微弱的下降→下降→升高的变化趋势。从土壤水分的年变化和垂直变化入手，分析产生这一变化的原因认为，在除自然因素降水和蒸发外，作物和地类对土壤水分有很大影响。作物的利用能力和利用范围是造成这一现象的根源，在制订该地轮作方案时，把主栽作物（春小麦）放在豆茬后是一个基本原则；轮作效益应以协调水分、平衡肥力、防除病虫草害等方面综合评价。 文摘来源          The study ascertains that the tissue of the tip of a Microula bench plant is best for its quick regeneration and that the concentration of the MS basic medium with different plant hormones should be 6-Bais 3 mg/L. After the first generation culture and the successive multiplication, the Microula bench grass was planted in the soil to grow root tubers.The study shows that based on the nutriment for growth and reproduction, the density of Microula bench plants in the nursery plot should be 200 plants/m~2, an...             研究并确定微孔草茎尖是组织培养的最佳部位,细胞分裂素(6 BA)最适浓度是3mg/L。经初代培养、继代扩繁、温室育苗等阶段形成的块根,供大田栽培,生产种子扩大繁殖。育苗区的种植密度是200株/m2,收种区25株/m2。同时制定"三区"和"四区"轮作方案及播前土壤处理方法,有效地控制杂草危害,提高了种子生产量。 文摘来源          Objective: To provide evidence for establishing an efficient method of growing Panax quinquefolium by rotation of crops. Method: Four-year old P. quinquefolium was cultivated in water and soil cultures. Biological assays were conducted with the aqueous extracts of P. quinquefolius, Fructus Perillae and roots of Coix lacryma-jobi. P. quinquefolium was cultivated in the soil where purple Perilla frutesens and C. lacryma-jobi were grown previously. The effects of rotation were determined. Result: The stems, le...             目的 :为西洋参合理的轮作方案提供科学依据。方法 :采用水培和土培的方法培育 4年生西洋参 ,并用西洋参茎叶、须根及紫苏子、薏苡根的水提物进行生物测试。以前作是紫苏和薏苡的土壤种植西洋参 ,观察其轮作效应。结果 :西洋参茎叶和须根中含有自毒性物质 ,每 1kg土壤含 1g该物质 ,西洋参几乎不能生长 ,当其含量为0.2g·kg-1时 ,西洋参存苗率下降 2 5 %以上。在前作为紫苏和施入紫苏子的土壤上种植西洋参 ,其存苗率及生物学重量比对照处理分别提高 2 6 .8%和 11.5 %。结论 :西洋参宜与紫苏轮作 ,此期间若用紫苏子作西洋参的肥料 ,轮作效应更佳 文摘来源       相关查询: 方案 轮作 典型轮作 随机化方案 判定方案 运动方案 轮作旱地 轮作水田 一般方案 广播方案 轮作顺序 标准方案  对查询结果不满意

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