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由黑龙江省红兴隆农场管理局科研所等单位于1980年设题研究,从生产实际需要出发,以土壤养分测定,肥料反应试验和作物需肥分析等方面的情况综合为依据,采用简化的方法,研究了氮、磷量,磷氮比,水量,产量等四者间的关系,通过回归分析,提出测土施肥法和适于本区主要土壤小麦施肥用量、比例参数,这个方法既简便,又具有实用推广价值,易于推广应用。本技术要点: (1)将土、肥中氮磷一起考虑,并与小麦需肥规律相应进行试验。磷氮比即磷氮、的比值(P_2O_5/N值)。 (2)必须按田块进行测定土壤中水解氮和有效磷。
Heilongjiang Province Hongxinglong Farm Bureau by the scientific research institutes and other units set up research in 1980, starting from the actual production needs, based on soil nutrients, fertilizer response tests and fertilizer needs of the analysis of the situation as a basis, using a simplified method , The relationship between nitrogen, phosphorus, phosphorus and nitrogen, water and yield were studied. Through regression analysis, the soil testing and fertilization method and the fertilization rate and proportioning parameters of the main soil wheat in this area were proposed. This method is simple, But also has the practical promotion value, easy to popularize and apply. The technical points: (1) the soil, fertilizer, nitrogen and phosphorus are considered together, and with the law of wheat fertilizer to be tested accordingly. Phosphorus to nitrogen ratio of phosphorus and nitrogen, the ratio (P_2O_5 / N value). (2) Soil must be hydrolyzed by nitrogen and available phosphorus as determined by field plots.