不同用量土壤调理剂对花椰菜产量及土壤理化性状的影响

Effects of Different Dosages of Soil Conditioner on Cauliflower Yield and Soil Physical and Chemical Properties

为探索土壤调理剂适宜用量对蔬菜产量变化及土壤改良的影响,以期为当地科学合理使用土壤调理剂提供指导与借鉴,通过田间试验,设置常规施肥为CK(复合肥100 kg·667 m^(-2))、掺混施肥(复合肥100 kg·667 m^(-2)+土壤调理剂100 kg·667 m^(-2),复合肥100 kg·667 m^(-2)+土壤调理剂200 kg·667 m^(-2),复合肥100 kg·667 m^(-2)+土壤调理剂300 kg·667 m^(-2))等4个处理,分析各处理对花椰菜产量及土壤改良的影响。结果表明:加施土壤调理剂后,土壤pH值、交换性钙、交换性镁等养分的有效含量均有提高,起到改良土壤理化性状作用;每667 m2掺施土壤调理剂100~200 kg能增加花椰菜产量和经济效益,而掺施300 kg后则比CK均有降低。综合对比,以每667 m2施用土壤调理剂100 kg为宜,花椰菜产量达到1546.1 kg,比CK增加82.1 kg,收益增加146.3元,在改良土壤理化性状的同时兼顾增加花椰菜产量、提升种植效益,可作为土壤调理剂参考用量在当地进一步推广应用。

The aim of this paper is to explore effects of suitable dosage of soil conditioners on yield changes of vegetables and soil improvement so as to provide guidance and references for reasonable application of soil conditioners.In this paper,conventional fertilization was used as control(CK,100 kg·667 m^(-2) compound fertilizer),and blending fertilization was used as treatments in which there were three treatments(100 kg·667 m^(-2) compound fertilizer+100 kg·667 m^(-2) soil conditioner,100 kg·667 m^(-2) compound fertilizer+200 kg·667 m^(-2) soil conditioner,100 kg·667 m^(-2) compound fertilizer+300 kg·667 m^(-2) soil conditioner).Effects of different treatments on cauliflower yield and soil improvement were analyzed.The results showed that application of soil conditioner could improve soil pH value and effective content of exchangeable calcium,exchangeable magnesium and other nutrients and then improve soil physical and chemical properties.Application of 100-200 kg soil conditioner per 667 m^(2) could improve cauliflower yield and economic benefit while application of 300 kg soil conditioner per 667 m^(2) could decreased them.Based on comprehensive comparison,application of 100 kg soil conditioner per 667 m^(2) was suitable with yield of 1546.1 kg per 667 m^(2).The yield was increased by 82.1 kg per 667 m^(2) and the economic benefit was increased by 146.3 yuan per 667 m^(2).Soil conditioner could not only improve soil physical and chemical properties but also increase cauliflower yield and economic benefit,so its dosage could be used reference dosage for further promotion in local areas.