They can charge more for water or fertilizer, discouraging waste.
也可以多收水费或化肥费以鼓励减少浪费。
Sink: source ratio could be affected by plant density or fertilizer supply level.
库源比既受肥料水平的影响,也受密度的影响。
You can turn compost into mulch or fertilizer for your vegetable or flower garden.
你也可以将混合肥料(已腐烂的有机混合物---译者注)用作蔬菜和花园的覆盖物或者肥料。
Every time the farmers buy seeds, fertilizer or other inputs, they pay an extra five percent in addition to the price.
VOA: special.2010.05.11
Ideas include using them to fill land or making them into liquid fertilizer or letting people eat them.
VOA: special.2009.12.15
Cindy Haynes says little or no fertilizer is needed in fertile soils.
VOA: special.2009.02.17
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