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农业要高产,就得施中、高浓度化肥,这已成为“习惯真理”。例如碳酸氢铵改产小尿素,就吃了这个“习惯真理”的亏。笔者通过实践,找出了另一条新路子,就是以低浓度化肥为基料(如碳酸氢铵、普通过磷酸钙等)填加部分有机物质,并经生物工程高新技术处理,生产出颗粒状的“生物有机氮磷肥”。它的含氮量只有13％,在甘肃省22个县(市)近2万亩土地上大田实验证实其综合肥效明显优于国内外高、中浓度化肥。 一、改良土壤功能:经大田实验证实,生物有机氮磷肥(注以下简称新肥)施用后土壤膨松,有明显改良土壤结构的功能,而其它中、高浓度无机化肥则没有这一功能。
To high-yield agriculture, you have Shi, high concentrations of fertilizers, which has become “the habit of truth.” For example, ammonium bicarbonate to produce small urea, eat the “habit of truth” loss. Through practice, the author found another new way to add some organic substances with low concentration of chemical fertilizers (such as ammonium bicarbonate, ordinary superphosphate, etc.) and processed by bio-engineering high-tech to produce granular Of “bio-organic nitrogen and phosphorus fertilizer.” Its nitrogen content is only 13%. Experiments in fields of nearly 20,000 mu in 22 counties (or cities) of Gansu Province confirmed that its comprehensive fertilizer efficiency is obviously superior to that of high and medium concentrations of fertilizers at home and abroad. First, to improve soil function: field experiments confirmed that bio-organic nitrogen and phosphorus fertilizer (Note hereinafter referred to as new fertilizer) after application of the soil bulky, significantly improve the function of soil structure, while other medium and high concentrations of inorganic fertilizers do not have this function.