西藏化肥肥效与应用技术研究

RESEARCH ON EFFICIENCY AND APPLICATION OF FERTILIZER IN TIBET

本文对西藏多年的化肥试验资料进行了较系统地整理和分析。初步明确了我区的化肥微肥肥效,适宜用量,氮磷配比及其相应的施用技术。指出河谷农区春播作物的化肥施用应采用前期重,后期轻,以基肥为主,以氮肥为主,氮磷配合使用的原则。还为如何进一步开展化肥研究提出了建议。

Through sorting out and analyzing data of fertilizer trials conducted in Tibet for several years, the fertilizer efficiency, the appropriate dosage, the ratio N : P and the fertilizer applying techniques in Tibet were made clear. While fertilizer being applied to spring crops along river basin agriregion, more dosage should be put in the earlier stage especially with base fertilizer and less in the later stages. Moreover, more nitrogen fertilizr should be used with the appropriate ratio of phosphorus matched. These results from researches would be conducive to making further study and helping farmers to apply fertilizer rationally in Tibet.