湖北棕红壤丘陵区不同地形部位及利用方式的土壤养分状况

Nutrient Status of Soils Under Different Topographic Features and Different Use Pattrens in Hubei Hilly Region of Brown red Soil

对湖北棕红壤丘陵区不同地形部位及利用方式的土壤养分状况研究结果表明，位于冲垅部的水耕土壤，其有机质、全氮及碱解氮含量高于位于丘陵中、上部的旱耕土壤，但速效磷、钾养分却明显偏低；果（茶）园地、重施有机肥的旱地以及水旱轮作田有较高的土壤熟化度；同处于丘陵上部的林地较之荒地各项肥力指标均有提高。

The nutrient status of the brown red soil in Hubei hilly region under different topographic features and different use pattrens was studied. The results showed that the content of organic matter, total N and alkali hydrolyzable N in paddy soils with lower available P and K levels was more than in upland soils. The application of organic manure, paddy field dry land rotation and the culture of fruit and tea could significantly raise soil maturity.