不同施肥处理对紫花苜蓿产量的影响

Effects of Different Fertilization Treatments on the Yield of Alfalfa

[目的]探讨种植紫花苜蓿的最佳施肥方法和施肥量。[方法]对阿尔冈金苜蓿在磷肥和钾肥不同比例(P75K75、P75K150、P150K75、P150K150、P0K0)下的株高、茎粗、鲜草产量、干草产量进行了测定。[结果]P75K150处理紫花苜蓿的株高最高(43.2 cm),与P150K150、P0K0处理有极显著差异(P<0.01)。P0K0处理紫花苜蓿的茎粗最细(0.5 mm),与其他处理均有极显著差异(P<0.01)。鲜草产量和干草产量均以P75K75处理最高,分别为768.4和202.4 g/m2,与其他处理均有极显著差异(P<0.01)。[结论]该研究可为紫花苜蓿区域化和产业化发展提供科学依据。

[Objective] The research aimed to discuss the best fertilization method and fertilization amount. [Method]The plant height,stem diameter,grass yield and hay yield of Algonquin alfalfa under different proportion treatments of phosphate fertilizer and potash fertilizer（ P75K75,P75K150,P150K75,P150K150,P0K0） were measured. [Result]The plant height of Algonquin alfalfa in the treatment of P75K150 was the highest（ 43. 2 cm）,with extremely significant difference with the treatments of P150K150 and P0K0（ P〈0. 01）. The stem diameter of Algonquin alfalfa in the treatment of P0K0 was the finest（ only 0. 5 mm）,with extremely significant differences with other treatments（ P〈0. 01）. The grass yield and hay yield of Algonquin alfalfa in the treatment of P75K75 were highest,being 768. 4 and 202. 4 g / m^2 respectively,with extremely significant differences with other treatments（ P〈0. 01）. [Conclusion]The research could provide scientific basis for the regional and industrial development of alfalfa.