土壤养分分布特征研究

本试验以黑龙江省宾县三宝乡幸福村耕地土壤为研究对象,基于在研究区域选取的20个地块,根据野外调查采样和室内分析的方法进行土壤养分测定。测定养分为土壤有机质、全磷、速效氮、速效钾、速效磷及土壤pH值。试验目的为研究耕地土壤养分分布特征和供肥特性,并进行对比分析,以期为指导合理施肥和培肥土壤提供依据。结果表明:幸福村耕地土壤养分中P、K空间分布特征较为明显,土壤N含量普遍较高,有机质含量不高。因此,幸福村大田作物施肥方案中N可采用同一标准,均量管理,磷肥、钾肥应分区施用。

Study on Distribution Characteristics of Soil Nutrient

This experimentation takes the farming soil of Bin county,Sanbao countryside,Happy village as research subject,and it is based on the 20 farms which are selected in the studied area.Take the methods of field investigation,sampling and laboratory analysis to determine soil nutrients.The determined nutrients are soil organic matter,total soil phosphorus,soil available nitrogen,rapidly-available potassium,rapid-available phosphorus and soil pH.The objective of this experimentation is to study the characteristics of nutrients supplying and the distribution of farming soil nutrients,to make contrastive analysis and to provide reference for steering proper fertilization and improving soil fertility.The results shows that,among the farming soil nutrients in Happy village,the spatial distribution features of phosphorus and potassium is relatively obvious,and the soil nitrogen content is generally high,otherwise,the organic content is not vey high.Therefore,among manure scheme for growing field crops,applying the nitrogen manure can adopt unified standard and same management,but the application of phosphorus manure and potassium manure should be distinct for different farmland.