论文部分内容阅读
一、大白菜的需肥特点大白菜的单产很高,一般每1/15公顷(亩)产量可达5000千克,因而对养分的需要量也相应较多。通常每1/15公顷产5000千克大白菜约
First, the need for fertilizer characteristics of Chinese cabbage High yield of Chinese cabbage, usually every 1/15 hectare (mu) yield up to 5000 kg, so the nutrient requirements are also more. Approximately 5000 kg of cabbage per 1/15 hectare