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本文以新陆早６号为材料，测定了新疆棉区不同土质、不同产量条件下，棉花开花期植株及根系的干物质重量；根系垂直分布范围内，相应土层中养分含量。研究表明，各层根系重量与相应土层养分含量呈高度或中度正相关，根量与棉株干重呈高度正相关。棉花产量与棉株干物质重量呈正相关。从理论上证明了培肥棉田有效养分库的重要性。为棉田重施基肥，改良土质，洗盐、压盐等栽培技术措施，以及施肥推荐系统的建立，提供了科学依据。
In this paper, Xinluzao 6 was used as material to determine the dry matter weight of plant and root system at different flowering and flowering periods in different cotton soil and cotton fields in Xinjiang. The results showed that there was a high or moderate positive correlation between the root weight of each layer and the nutrient content of the corresponding soil layers, and the root weight was highly positively correlated with the dry weight of the cotton plant. Cotton yield and cotton plant dry matter weight was positively correlated. It proves the importance of effective nutrient pool in cultivating cotton field theoretically. It provides a scientific basis for the cotton planting base fertilizer, soil improvement, salt washing, pressure salt cultivation techniques and other measures, as well as the establishment of fertilization recommendation system.