This is a preview. Log in through your library . Abstract A mobile phytoplankton sampling method, in which surface samples were dipped from the lake at 1/2-hr. intervals over circuits which could be ...

There are few things more depressing for an arable farmer than having a load of grain rejected. While losing a premium for low Hagbergs in milling wheat or high nitrogen in malting barley is ...

Should you have feedback on this article, please complete the fields below. Please indicate if your feedback is in the form of a letter to the editor that you wish to have published. If so, please be ...