The standard of healthy seedlings for winter wheat, the application of nitrogen fertilizer and the colonial structure of high yield are also introduced in this paper with some new views.
本文介绍了这种栽培法的技术特点及增产效果，并依此对冬小麦壮苗标准、氮肥施用技术、高产群体结构等提出了新的见解。
The interaction mechanism between humic acid and fertilizer is discussed, the flow sheet, equipment, process parameters of extrusion technology and enterprise standard of product are presented.
并介绍腐植酸与肥料的作用机理，挤压法生产有机无机复混肥的流程、设备、工艺条件及产品的企业标准。
Several Suggestions on specialty fertilizer formula, nutrient concentration of compound fertilizer, and terms in national standard are presented from agronomy viewpoint.
对专用肥配方、复混肥的浓度、复混肥标准的一些规定从农艺角度提出一些意见。
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