发布时间:2025-01-30 05:16:51
香椿树栽植成活后一个月左右,在根系分布区外围15厘米左右开沟施用磷酸二铵复合肥。用量根据树体大小而定(每株用量0.2-1斤左右)。施肥后及时浇水。
请问在哪儿能买到质量可靠的416不锈钢631不锈钢403不锈钢
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