The yield of two times of the fertilizer application at bell stage was similar to that of one time.
拔节期和大喇叭口期分两次追施和大喇叭口期一次施入产量相近。
Interaction between terrestrial ecosystem and climate system with the impact of human activities is one of the key scientific issues in the yield of global change research at the present time.
人类活动影响下,陆地生态系统和气候系统的相互作用已成为目前全球变化研究的主要科学问题之一。
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