第1个回答 2018-01-05
Due to the slow release of urea formaldehyde cycle is generally applied to perennial plants, such as forests, lawns and so on.本回答被提问者采纳
第2个回答 2018-01-05
翻译如下:
Therefore, urea formaldehyde is usually applied in forests, lawn etc. for perennial plants due to its long slow-release period.