crop rotation

音标发音

Her results show that reducing emissions is more complicated than just cutting back on nitrogen fertilizers and changing crop rotation cycles.
她的研究结果表明，减少排放要比只是减少氮肥的使用和改变作物轮作周期复杂得多。
And no matter which tillage or crop rotation system was used, nitrous oxide emissions peaked during spring thaws when the sun’s rays began to warm the soil.
不管应用哪种耕作法或者作物轮作制度，在春雪融化时，也即太阳光开始把土壤烘暖时，一氧化二氮的排放量总是达到高潮。
They urged “a rapid shift, whenever and wherever conditions permit it, to management systems based on minimal soil disturbance, increased soil cover, and appropriate crop rotation”.
他们敦促，“无论何时何地，只要条件许可，应迅速向以最低限度干扰土壤，增加土壤覆被和适当的作物轮作为基础的管理系统转变”。

There is rarely crop rotation and soils are depleted after years of grain crops.
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Organic methods, which rely on crop rotation, manure and compost in place of fertiliser, are far less intensive.
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The other is that monoculture and less crop rotation risks exhausting the soil.
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a method of farming where a number of different plants are grown one after the other on a field so that the soil stays healthy and fertile (= able to produce crops)

the system of growing a sequence of different crops on the same ground so as to maintain or increase its fertility

轮作
Studies on flowering time may help breed varieties suitable to crop rotation and manipulate pollination control systems in hybrid breeding and production.
研究油菜开花时间多态性及相应控制基因有助于培育适应不同季节和轮作方式的品种。
环境科学技术
轮作
Nitrogen and phosphorus losses of surface runoff in various crop rotation systems in north of lake Erhai watershed were researched for the risk evaluation and putting countermeasures for the nonpoint pollution from agricultural source.
为明确洱海北部地区不同轮作模式下农田氮、磷流失特性,客观评价环境污染风险。
生物学
轮作