摘要
为探明全元生物有机肥对辣椒生长、产量以及根际土壤养分的影响,设置全元生物有机肥+常规减量施肥 50%(T1)、灭活全元生物有机肥+常规减量施肥50%(T2)、常规施肥(T3)和不施肥(CK)4 个处理.结果表明:T1能显著提高辣椒的株高、冠幅、单株果数及产量;T1 根际土壤的pH值、全氮、全磷、全钾、碱解氮、有效磷、速效钾显著高于T3、CK,有效磷和速效钾显著高于处理T2;T1 的青枯病病情指数为 21.74,显著低于其他 3 个处理,分别比T2、T3、CK低 10.37、20.19、35.48,T1 的相对防效为56.71%.全元生物有机肥能促进辣椒生长,增加辣椒产量和收益,活化土壤养分,提升土壤肥力,降低土传病害发生,可在辣椒连作障碍区域推广应用.
Abstract
A field experiment was conducted to evaluate the effects of self-developed full-element bio-organic fertilizer on the growth,yield,and rhizosphere soil nutrients of pepper.Four treatments were designed,including full-element bio-organic fertilizer+conventional fertilizer reduced by 50%(T1),inactivated full-element bio-organic fertilizer+conventional fertilizer reduced by 50%(T2),conventional fertilizer(T3),and no fertilizer(CK).The results showed that T1 significantly increased the plant height,crown width,fruit number per plant,and yield of pepper.T1 had higher pH value,total nitrogen,total phosphorus,total potassium,available nitrogen,available phosphorus,and available potassium in the rhizosphere soil than T3 and CK,and it had higher available phosphorus and available potassium than T2.The disease index of bacterial wilt in T1 was 21.74,which was 10.37,20.19,and 35.48 lower than T2,T3,and CK,respectively.The control effect of T1 reached 56.71%.The above results indicated that whole bio-organic fertilizer promoted the growth to improve the yield and benefit of pepper.Moreover,the fertilizer activated soil nutrients to improve soil fertility and reduced soil-borne diseases.Therefore,the full-element bio-organic fertilizer can be promoted in the pepper fields with continuous cropping obstacles.
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