论文部分内容阅读
对杂交水稻生产中缓释尿素用量、普通尿素用量、肥料类型及施肥方式、稻株含氮量等对二化螟发生危害的影响进行了研究。结果表明:二化螟发生危害随氮肥用量的增加而加重;施用缓/控释肥、适氮适磷钾肥、有机肥等能减轻二化螟的危害,而普通氮化肥施用过多则危害加重。
The effects of the amount of slow-release urea, the amount of common urea, the types of fertilizers and fertilization methods, the nitrogen content of rice plants on the occurrence and occurrence of Chilo suppressalis in hybrid rice production were studied. The results showed that the damage of the stem borer was aggravating with the increase of nitrogen fertilizer dosage. The application of slow / controlled release fertilizer, suitable nitrogen and phosphorus fertilizer and potassium fertilizer and organic manure could reduce the damage of the stem borer (Chilo suppressalis), while the excessive use of common nitrogen fertilizer increased the harm .