Background: Over the last decades, many forest simulators have been developed for the forests of individual European countries. The underlying growth models are
The formation of rice distribution is based on certain natural ecological conditions and social economic environments. In China, rice cropping is distributed in
<正> A male sterile line with wide Compatibility,064A was successfully bred in CNRRI which not only has good compatibility with japonica and indica rice but als
Background: Forest fertilization offers a means to increase the production of renewable resources.Nitrogen is the most common fertilizer in boreal upland forest