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众所周知,土壤养分状况与作物产量和品质息息相关,耕地黄壤乃是本省分布面积最广,对种植业影响最大的一种农业土壤,研究和掌握其养分含量有助于因土施肥,以获得作物的大面积均衡增产;同时也便于进行土壤的利用规划。以往我省的一些土壤农化实验室和中国科学院南京土壤研究所曾对全省主要土壤类型进行过养分分析,但其化验数据零星、分散,而且化验间隔时间长,分析方法也不统一,因此,对耕地黄壤的养分概况不能作全面、系统的估价。近年来,我省开展了土壤的全面普查,其中包含土壤养分的内容。有关化验样品的采集技术和各项养分的化验方法均按全国统一的技术规程进行,耕地黄壤也不例外。
It is well-known that soil nutrient status is closely related to crop yield and quality. Cultivated land yellow soil is an agricultural soil with the most extensive distribution in the province and the greatest impact on the planting industry. Studying and mastering its nutrient content can help fertilize the soil to obtain crop Large-scale balanced production increase; also facilitate the use of soil planning. In the past, some soil agrochemical laboratories in our province and the Nanjing Institute of Soil Science, Chinese Academy of Sciences had conducted nutrient analysis of the main soil types in the province, but their laboratory data were sporadic and scattered, and the test interval was long and the analytical methods were not uniform. Therefore, , Can not make a comprehensive and systematic appraisal of the nutrient profile of arable yellow soil. In recent years, our province has conducted a comprehensive survey of soil, which contains the content of soil nutrients. The collection of laboratory samples and nutrient testing methods are based on a unified national technical regulations, arable land yellow is no exception.