Describe the process and significance of doublefertilization.
被子植物的双受精过程及其意义?
2
The effects of transplanting in depth with one-off double-layer fertilization were studied on growth and development of flue-cured tobacco(K326).
以烤烟K326为材料,进行深移栽结合一次性双层施肥对烤烟生长发育影响的试验。
3
The effects of different transplanting depths combined with one-off double-layer fertilization on the growth of flue-cured tobacco and nutrient contents of soil were studied in the field experiment.