摘要:
为保证萝卜产量的同时,又避免萝卜“蓝心”的发生,采用大田试验和不同的储藏方法,研究矿质元素和有机肥不同配施对萝卜产量和“蓝心”问题的影响。结果表明:NPK2(尿素+钙镁磷肥+硫酸钾)+鸡粪处理产量最高,达151.67t·hm-2,显著高于NP(CK)处理;NPK1(尿素+钙镁磷肥+氯化钾)和NPK1+鸡粪处理的萝卜出现“蓝心”率分别为20.0%和16.7%,明显高于未施用氯化钾的处理,且冷藏易诱发萝卜提早出现“蓝心”现象。经土壤样品和植株样品检验萝卜心泛蓝现象属Cu离子和Cl离子含量较高,为此,提出萝卜高产优质栽培模式,即萝卜种植地农家有机肥与氯化钾不要混合施用,钾肥应使用硫酸钾为佳,可采用尿素+钙镁磷肥+硫酸钾+鸡粪的施肥方式。
关键词:
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萝卜 /
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产量 /
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矿质元素 /
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“蓝心”
Abstract:
In order to guarantee yield and avoid occurring " blue chip" of radish at the same time,the field experiment and different storage methods were used to study the effects of different mineral elements and organic fertilizer on yield and " blue chip" phenomenon of radish.The results showed that the NPK2(urea+calciummagnesia phosphate fertilizer+potassium sulfate)+chicken manure treatment gave the highest yield,151.67t·hm-2,significantly higher than that of NP(CK)treatment.In addition,the " blue chip" rate of radish of NPK1(urea+calcium-magnesia phosphate fertilizer+potassium chloride)and NPK1+ chicken manure treatment were20.0%and 16.7% respectively,and significantly higher than that of the treatment without applying potassium chloride.While refrigerated storage inducing the " blue chip" phenomenon of radish appeared earlier than normal temperature storage.The soil and plant samples analysis showed that the radish section pan-blue phenomenon maybe caused by the radish containing high Cu and Cl ions to form CuCl2which make radish section in light blue patches.Therefore,in order to guarantee the high yield and good quality of radish,avoiding the phenomenon of " blue chip",suggested that carrot planter don′t mixed application of organic manure and potassium chloride,select potassium sulfate as potassium fertilizer and combination fertilizer,urea+calcium-magnesia phosphate fertilizer+potassium sulfate+chicken manure,as fertilizer source for radishs.
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