摘要
对新疆棉区南疆亚区中产棉田2品种3密度棉株N、P吸收及分配规律的研究表明，棉株N、P含量变化规律与干物质累积规律相同；单位干重N、P含量变化较棉株总N、P含量变化对研究棉花需肥规律及生理变化的影响更有意义;N、P分配率表明，随生育期推迟，茎叶N、P分配率逐渐下降，性器官N、P分配率逐渐上升。
The absorption and distribution of N and P in two cotton varieties with three dcensities were studied. The results were as follows ① The changes in the content of N and P are similar to that of dry-matter accumulation; ② The contents of N and P unit dry-matter weight were more important for studying the cotton fertilizcr requirement than the total contents of N and P in whole; ③ With the growing period delay, the distributions of N and P in stem and leaf were decreased and in the sexual organ were inereased.
出处
《西北农业学报》
CAS
CSCD
1999年第1期37-39,共3页
Acta Agriculturae Boreali-occidentalis Sinica
基金
新疆维吾尔自治区自然科学基金
