不同生物有机肥对荞麦病害及产量的影响

Effects of Different Bio-organic Fertilizers on Disease and Yield of Buckwheat

为了探讨不同生物有机肥对云南荞麦品种的优质高产栽培的最适施用量,以‘云荞1号’为材料,研究了3种不同生物有机肥(F1、F2、F3)的3个不同施用量(T1:300 kg/hm^2、T2:600 kg/hm^2、T3:900 kg/hm^2)对荞麦病害、农艺性状及产量的影响。结果表明:3种生物有机肥均有防治荞麦褐斑病的效果,其中F3生物有机肥的效果最好,但施用量对病害没有显著性差异;从荞麦各农艺性状及产量来看,3种生物有机肥均可增大株高等农艺性状,增加产量,并且随着施用量的增加其表现值也增加,T3时各性状及产量的表现值为最大值,但这些性状在生物有机肥间没有显著差异。综上所述,在荞麦地施用生物有机肥可以有效降低荞麦褐斑病发病率,可以提高土壤肥力,促进植株生长和干物质的积累,从而显著提高荞麦产量。

To explore the optimum application amount of different kinds of bio-organic fertilizers for high yield and quality of buckwheat varieties from Yunnan Province, ＇ Yunqiao- 1 ＇ was used as the material to study the effects of three kinds of bio-organic fertilizers （F1, F2, F3） with three application rates （TI： 300 kg/hm2, T2： 600 kg/hm2, T3：900 kg/hm2） on diseases, agronomic characters and yield of buckwheat. Results showed that all of the three kinds of fertilizers had positive effects on controlling buckwheat brown spot disease, among which, F3 had the best effect, but the application amounts had no significant difference on disease control; for agronomic characters and yield, the plant height and yield increased with the increase of application amounts, and the performance value increased along with the application amount increasing. The agronomic charactersand yield all reached the maximum under T3; while there was no signihcant d]tterence among me mree ttmu~ o, fertilizers for all these characters. In summary, the incidence of buckwheat brown spot disease can be effectively reduced, the soil fertility can be improved, the plant growth and dry matter accumulation can be promoted and the yield can be significantly increased with the application of bio-organic fertilizer.