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[目的]研究攀西地区不同播种期、播种量和施肥量对西昌学院新育成的西大麦1号(Hordeum agriocrithon)生长发育和产量的影响,为该地区大麦高产栽培提供指导,并为其进一步推广提供科学依据。[方法]试验设不同播种期和播种量试验及不同氮、磷肥施用量试验。[结果]在攀西地区,西大麦1号以10月25日左右播种,播种量150 kg/hm2,施纯N量108 kg/hm2,施P2O5量113 kg/hm2,施K2O量90 kg/hm2(N∶P2O5∶K2O为1.20∶1.26∶1.00)组合效果较好。播种密度越大越易感染白粉病和叶锈病,多施或偏施尿素会导致大麦抗病性和抗逆性下降,越易感染白粉病和叶锈病;肥料处理间氮肥的施用量增加,生育期延长,但磷肥施用量对生育期影响不明显。[结论]在攀西地区,西大麦1号的适宜播期为10月25日左右,适宜播种量为150 kg/hm2,适宜的N、P2O5、K2O施用量分别为108、113、90,N∶P2O5∶K2O为1.20∶1.26∶1.00。
[Objective] The research aimed to study the effects of different sowing dates, seeding rates and fertilizer rates on the growth and yield of Hordeum agriocrithon newly cultivated in Xichang College and provide guidance for the high-yielding cultivation of barley in this region. Promote to provide scientific basis. [Method] The experiment set different sowing date and sowing rate test and different nitrogen and phosphorus fertilizer application rate test. [Result] In Panxi area, West barley 1 was sown around October 25 with sowing rate of 150 kg / hm2, application of pure N 108 kg / hm2, application of P2O5 113 kg / hm2, application of K2O 90 kg / hm2 (N: P2O5: K2O is 1.20: 1.26: 1.00), the combination is better. The higher the sowing density, the more susceptible to powdery mildew and leaf rust. Applying or partial application of urea could lead to the decrease of disease resistance and stress resistance of barley, and the more susceptible it was to powdery mildew and leaf rust. The application amount of nitrogen fertilizer increased during fertilization and the growth period But the effect of P application on growth period was not obvious. [Conclusion] The suitable seeding date of West Barley 1 in Panxi was about October 25, and the suitable seeding rate was 150 kg / hm2. The suitable N, P2O5 and K2O application rates were 108, 113 and 90 N : P2O5: K2O 1.20: 1.26: 1.00.