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为了考察小麦根际亲和性溶钾细菌对小麦生长和小麦钾肥利用的影响,采用盆栽法栽培小麦,测定小麦干物质积累、叶片含钾量、土壤速效钾含量,考察溶钾细菌对小麦地上部分植株钾素积累量和钾肥利用率的影响。结果显示,11株溶钾细菌接种处理使小麦地上部分干重超过施100%钾肥的对照CK2的水平,WS25和WS27处理的小麦干物质积累极显著高于CK2,分别比CK2高11.66%和23.34%;在小麦苗期,11株溶钾细菌处理的小麦根干重和小麦植株钾素积累量均高于CK2;在旺长期,11株溶钾细菌处理的植株钾积累量均高于施50%钾肥的CK1,3株菌(WS25、WS27、WS28)处理的小麦植株钾素积累量高于CK2,其中WS27极显著高于CK2;11株溶钾细菌处理的钾肥利用率均高于CK1和CK2,其中WS27使得小麦的钾肥利用率在苗期和旺长期分别比CK2高出17%和40%。溶钾细菌可以促进小麦植株对土壤中钾素的吸收和利用,提高肥料利用率,促进小麦植株的生长和发育。
In order to investigate the effect of wheat-soluble rhizosphere bacteria soluble potassium on wheat growth and wheat potassium utilization, potted wheat was used to measure the accumulation of wheat dry matter, leaf potassium content, soil available potassium content, Effect of Potassium Accumulation and Potassium Utilization Rate of Some Plants. The results showed that 11 strains of potassium-soluble bacteria inoculated more than the control CK2 with above 100% potash, and the dry matter accumulation of WS25 and WS27 was significantly higher than that of CK2, 11.66% and 23.34 higher than CK2, respectively %. In the wheat seedling stage, the dry weight of wheat root and the potassium accumulation of wheat plants treated with 11 strains of soluble potassium were all higher than that of CK2. In the long-term, the accumulation of potassium in 11 soluble potassium bacteria strains was higher than that of CK Potassium accumulation of wheat plants treated with CK, WS27 and WS28 was higher than that of CK2, and WS27 was significantly higher than that of CK2. Potassium utilization of 11 K-soluble bacteria was higher than that of CK1 and CK CK2, among which WS27 led to a 17% and 40% increase in potash fertilizer use efficiency in wheat at CK and seedling stage respectively. Soluble potassium bacteria can promote the absorption and utilization of potassium in the soil by wheat plants, increase fertilizer utilization, and promote the growth and development of wheat plants.