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【答案】应助回帖
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pj198811: 金币+20, 翻译EPI+1, ★★★很有帮助, 非常感谢 2012-07-02 11:15:32
试验共设4个处理。1）CK（不施肥）；2）N 450 kg/hm2；3）P2O5 225 kg/hm2；4）K2O 250 kg/hm2。氮肥用尿素（N 46%），磷肥用过磷酸钙（P2O5 12%）；钾肥用硫酸钾（K2O 51%）；全部磷肥和钾肥、50%氮肥以基肥4月15日施入，剩余的50%氮肥在7月25日以追肥施入。不同处理之间相隔3米。采用完全随机设计，每个小区3株梨枣（试验小区面积2 m×3 m），3次重复。
Experiments were carried out in four scenarios, including CK (no fertilization), nitrogenous fertilizer of 450 kg/hm2, phosphatic fertilizer of 225 kg/hm2, and potash fertilizer of 250 kg/hm2. The nitrogenous fertilizer, phosphatic fertilizer and potash fertilizer were applied in the form of carbamide (N 46%), superphosphate fertilizer (P2O5, 12%) and Potassium sulfate (K2O 51%), respcetively. The whole amounts of phosphatic fertilizer, potash fertilizer and 50% of nitrogenous fertilizer were applied in soil as basal dressing on the 15th April. The remained 50% of nitrogenous fertilizer were applied as top dressing on the 25 th July. The interval between the experimental fields for different scenarios application is 3m. With the totally random design, there were 3 copy fields for each scenarios, with each field planting 3 trees of pear Chinese date (experiemntal field area is 2m*3m).
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