E. L. Tigka, D. F. Beslemes, D. Vlachostergios, D. Bilalis
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引用次数: 2
摘要
研究了两种种植密度和基因型对绿肥杨梅生长和氮素积累的影响。试验田设在希腊中部。研究土壤为粘性土，属于Vertisol。结果表明，植株密度对各生长指标均有显著影响(P < 0.05)。不同基因型野豌豆的生长指标、生物量生产力和氮素吸收量在不同密度下差异显著(P < 0.05)。相反，植株密度对各品种和混合植株组织氮浓度均无影响。特别是作物出苗后LAI快速增加，所有情况下均达到3.5 m 2 m -2以上，且持续2个月以上。当种植密度为100 Kg ha -1时，不同基因型和混合品种的生物量产量显著低于种植密度为180 Kg ha -1时的生物量产量。
Evaluation of Vicia sativa L. as green manure: Case study of genotype and plant density influence on N availability
The effect of two plant densities and genotype in growth and N -accumulation of common vetch, used as green manure was investigated. The experiment field was settled in central Greece. The study soil was clayey, classified as Vertisol. The results demonstrated a significant effect (P < 0.05) of plant density in all growth indicates. Significant differences (P < 0.05) were detected in growth indices, biomass productivity and N uptake, among different genotypes of common vetch regardless plant density. Contrary, no effect of plant density was observed in N concentration of plant tissue in all varieties and mixtures. In particular, LAI increased with high rates from crop emergence, reaching values above 3.5 m 2 m -2 in all cases, and maintained high values for more than two months. Also biomass production was significant lower in genotypes and mixtures when cultivated with plant density of 100 Kg ha -1 than with plant density of 180 Kg ha -1 .
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