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水稻一次性施用“新农科”控释肥示范试验。结果表明,一次性施肥与常规分次施肥相比,氮、磷施用量分别节省18.13%和29.30%,但钾用量增加6.94%;每667 m2增产稻谷36.4 kg,增产率为8.90%,每667 m2增收节支72.60元,说明该技术具有显著的节肥省工和增产增收效果。该项技术的增产机理有以下几方面:生长全程高水平氮素养分供应是水稻增产的营养基础;根系庞大,分布深广为水稻充分吸收养分和形成健壮、旺盛群体提供了可能;延缓衰老充分发挥了良种的增产潜力;抗倒伏能力强为水稻高产稳产提供了重要保证。
Rice one-time application “new agricultural science ” controlled release fertilizer demonstration test. The results showed that compared with conventional fertilization, the application rates of nitrogen and phosphorus were 18.13% and 29.30%, respectively, but the amount of potassium increased 6.94% and 36.4 kg for 667 m2 respectively, yield increasing rate was 8.90% m2 increase income and save 72.60 yuan, indicating that the technology has a significant saving and labor saving and stimulation effect. The technology of increasing production mechanism has the following aspects: the growth of high levels of nitrogen nutrient supply is the basis for the increase of rice yield; root system is large, distributed widely to rice to fully absorb nutrients and the formation of robust, strong population may provide; delay aging give full play The yield potential of the elite seedlings; strong lodging resistance provides an important guarantee for high and stable yield of rice.