It has only the history of ten yeare that organic agriculture has been studied and imple- mented in Hong Kong. The techniques for ognic farming have been developed greatly on our Gar- den Farm, and it brings to many f...It has only the history of ten yeare that organic agriculture has been studied and imple- mented in Hong Kong. The techniques for ognic farming have been developed greatly on our Gar- den Farm, and it brings to many foreign researchers attention.展开更多
A tillage experiment, consisting of moldboard plow （MP）, ridge tillage （RT）, and no-tillage （NT）, was performed in a randomized complete block design with four replicates to study the effect of 3-year tillage ma...A tillage experiment, consisting of moldboard plow （MP）, ridge tillage （RT）, and no-tillage （NT）, was performed in a randomized complete block design with four replicates to study the effect of 3-year tillage management on SOC content and its distribution in surface layer （30 cm） of a clay loam soil in northeast China. NT did not lead to significant increase of SOC in topsoil （0-5 cm） compared with MP and RT; however, the SOC content in NT soil was remarkably reduced at a depth of 5-20 cm. Accordingly, short-term （3-year） NT management tended to stratify SOC concentration, but not necessarily increase its storage in the plow layer for the soil.展开更多
文摘It has only the history of ten yeare that organic agriculture has been studied and imple- mented in Hong Kong. The techniques for ognic farming have been developed greatly on our Gar- den Farm, and it brings to many foreign researchers attention.
基金Project supported by the National Natural Science Foundation of China (Nos.40271108 and 40471125).
文摘A tillage experiment, consisting of moldboard plow （MP）, ridge tillage （RT）, and no-tillage （NT）, was performed in a randomized complete block design with four replicates to study the effect of 3-year tillage management on SOC content and its distribution in surface layer （30 cm） of a clay loam soil in northeast China. NT did not lead to significant increase of SOC in topsoil （0-5 cm） compared with MP and RT; however, the SOC content in NT soil was remarkably reduced at a depth of 5-20 cm. Accordingly, short-term （3-year） NT management tended to stratify SOC concentration, but not necessarily increase its storage in the plow layer for the soil.
