珠江三角洲沙围田地区是广东省重要商品粮基地。这一地区土质黏重、地下水位高,水稻生长普遍存在前期慢发、中期暴长、后期早衰的现象,群众称之为“好禾不好谷”,是高产、稳产中存在的一个突出问题。以往有关土壤的分析研究已有不少结果。但是从植株生长发育及其与土壤营养关系方面的研究尚不多。本项研究自1982年至1984年在顺德县伦教区农科站及荔村乡设点,代表珠江三角洲黏壤土,以本所石牌基地代表丘陵区砂壤土(表1), Shajiang Delta in the Pearl River Delta region is an important commodity grain base in Guangdong Province. In this area, there is a thick soil and a high groundwater level. The growth of rice is generally characterized by slow and medium-term storms and premature aging in the early stages. The masses call it “Wo Wo Bad Valley”, which is a prominent problem in high yield and stable yield . In the past, there have been many results on soil analysis and research. However, few studies have been done on the relationship between plant growth and development and soil nutrition. This study was conducted at the Agricultural Science Station of Lunjiao District, Shunde District, and the village of Licun Township from 1982 to 1984, representing the clay loam in the Pearl River Delta and the sandy loam in the hilly area of ​​the Shibao base (Table 1)