Nitrogen fertilizer and compound fertilizer are suitable for the seedingperiod, while compound fertilizer, phosphorus and potassium fertilizers are suitable for the period of root forming.
苗期适用氮肥及复合肥，块根形成期适用复合肥及磷钾肥。
2
The results show that different photo-temperature condition during rapeseed growing period induced by different seeding date resulted in a great difference in yield and yield components.
Some scientific bases are provided for studying the potentials of convective cloud precipitation and for cloud seeding operation during the summer autumn period.