【摘要】 钾对马铃薯的生长有十分重要的作用,而钾细菌对钾的有效性有显著的促进作用。试验以马铃薯为研究对象,通过施用含有溶钾作用的钾细菌进行大田试验,寻求施用微生物菌作为马铃薯增产提质的新途径,并探讨解钾细菌的合理施用量。结果表明,钾细菌在一定程度上可以提高土壤的生化活性以及土壤氮、钾的养分含量;改善马铃薯品质,提高马铃薯的产量和经济效益。60 kg/hm2钾细菌制剂被推荐为北方寒地马铃薯栽培的最佳施用量。更多还原

【Abstract】 Potassium has an abvious effect on potato growth, and potassium bacteria have a significant role to play in promoting the availability of potassium. In this research, potassium bacteria were applied to potatoes in a field experiment to explore a new way to improve quantity and quality of potatoes, and determine the optimal rate of the potassium bacteria applied. The results showed that the potassium bacteria increased to some extent the biological activity and the nutrient contents of nitrogen and potassium in soil; and improved the yield, quality and economic benefit of potatoes. Potassium bacteria applied at 60 kg/ha could be recommended as the optimal application rate of potassium bacteria for potato production in the northern cold-region of china.更多还原