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第428章 肥料是土地的粮食(2 / 2)

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“好,您的谢谢我收下了!”陈华笑了。

“书记,我手里还有一个很好的项目。”陈华跟着说道。

“欧,什么好项目?”酒书中目前就是对项目感兴趣。

“复合肥。”

“复合肥?”

“对,在M国,他们很少使用单体的化肥,基本上使用的都是复合肥。”

“对这些我不太懂,你能不能把有关复合肥方面的知识和作用给我讲一讲,让我能有一个简单的认识。”

“好的。复合肥生产多使用测土配方测出土壤的养分情况,测土配方施肥是以土壤测试和肥料田间试验为基础,根据作物需肥规律、土壤供肥性能和肥料效应,在合理施用有机肥料的基础上,提出氮、磷、钾及中、微量元素等肥料的施用数量、施肥时期和施用方法。

通俗地讲,就是在农业科技人员指导下科学施用配方肥。测土配方施肥技术的核心是调节和解决作物需肥与土壤供肥之间的矛盾,同时有针对性地补充作物所需的营养元素。

可谓作物缺什么元素就补充什么元素,需要多少补多少,实现各种养分平衡供应,满足作物的需要;达到提高肥料利用率和减少用量,提高作物产量,改善农产品品质,节省劳力,节支增收的目的。”陈华直接讲了复合肥的作用。

“你讲的我基本听明白了,你的意思其实给土地施肥也应该讲究科学性,应该让农机部门测量一下我们当地的土壤,有效合理地使用化肥,是这个道理吧?”酒书中根据自己的理解总结道。

“正确。所以化肥是多样性的,肥料是植物的粮食,是直接或间接供给作物所需的养分,改善土壤性状,以提高作物产量和品质的物质。

肥料的分类方法很多,一般将肥料分为无机肥料、有机肥料和微生物肥料。目前生产上起决定作用的是无机肥料,其次是有机肥料。

有机肥料广义上讲,俗称农家肥,如人畜粪便、秸秆、动物残体等。

经生物物质、动植物废弃物、植物残体、屠宰场废弃物等加工而成的有机肥,消除了其中的有毒有害物质,富含大量有益物质,不仅能为农作物提供全面营养,而且肥效长,可增加和更新土壤有机质,促进微生物繁殖,改善土壤的理化性质和生物活性,是绿色食品生产的主要养分。

另外还包括饼肥,像菜籽饼、棉籽饼、豆饼、芝麻饼、蓖麻饼、茶籽饼,还有堆肥、沤肥、厩肥、沼肥、绿肥等。

它们主要是以供应有机物质为手段,借此来改善土壤理化性能,促进植物生长及土壤生态系统的循环。”

陈华边讲,酒书中边点头,他虽然知道庄稼生产离不开肥料,却不知道使用肥料还有这么多的讲究。

......

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