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有效地使用氮肥一直是与农民有争议的问题。减少施氮量可以降低甜菜生产成本,同时还改善了甜菜的品质,有利于糖厂加工表1列山了1980年以来英国各地种植甜
The effective use of nitrogenous fertilizer has always been a matter of debate with farmers. Reducing the amount of nitrogen applied can reduce beet production costs while also improving the quality of beets and facilitating the processing of sugar mills Table 1 The growing sweetness throughout the United Kingdom since 1980