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日光温室冬春茬韭菜栽培技术 总被引：1，自引：0，他引：1
目前,我国北方地区保护地韭菜生产面积很大,应用的品种很多、很杂,特别是菜农对韭菜的休眠类型缺乏了解,给保护地韭菜生产带来不必要的损失。为此,笔者针对生产中存在的问题,将温室冬春茬韭菜的栽培技术措施做一简要介绍,以供大家参考。一、品种选择日光温室韭菜冬春茬栽培宜选用品质好、叶宽、直立性强、耐低温弱光、休眠期居中的品种。在辽宁地区一般选用"汉中冬韭"和"阜丰一号"等品种。这些品种休眠时间短、生长旺盛、耐寒力强,低温下生长速度较快。扣棚后第１～２刀产量比较高,适合保护地栽培。二、根株培养日光温室韭菜栽培,… 相似文献
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生物有机肥对日光温室草莓生长发育的影响 总被引：3，自引：0，他引：3
以垄栽“丰香”草莓为试材,研究了生物有机肥对日光温室内草莓生长发育的影响。结果表明：生物有机肥能显著促进草莓新根的发生与生长,提高了根系活力,新根鲜重、新根总长度和新根粗度、新根总表面积及根系生长点数增加,根系呼吸强度增强。地上部鲜重、平均叶面积和总叶片数也增加,叶片光合强度提高,叶绿素含量增加。植株的根冠比增加5～22个百分点;单株产量增加,品质改善。每克草莓干重果糖、葡萄糖、蔗糖的含量分别提高56．8mg、85．39mg和85．66mg。比较产投比,应用时生物有机肥与园土按1：30～1：15的比例配制基质较为合适。 相似文献
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野生韭菜生长旺盛，而且口味独特，在我国北方地区被广泛移栽。但由于技术等原因，许多移栽的野韭成活率低，产量也不高。现将野韭根株移栽技术介绍如下： 相似文献
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根施聚天门冬氨酸对日光温室黄瓜生长、产量及矿质元素吸收的影响 总被引：2，自引：0，他引：2
以黄瓜品种中农26号为试验材料,研究根施聚天门冬氨酸(PASP)对日光温室秋冬茬黄瓜生长、产量以及矿质元素吸收的影响。结果表明:与对照相比,根施聚天门冬氨酸促进了黄瓜生长及干物质的积累,黄瓜叶片数、叶绿素含量、净光合速率、根系活力、果实VC和可溶性蛋白含量都明显提高;促进了植株对氮磷钾的吸收,增加了土壤速效氮、速效磷、速效钾的含量,提高了黄瓜产量。其中根施60 mg·株-1聚天门冬氨酸处理效果最好,全株干、鲜质量分别比对照显著增加16.24%、11.16%,土壤速效氮、速效磷、速效钾含量分别比对照显著增加20.91%、31.65%和35.87%,黄瓜单株产量、单株果数和总产量分别比对照显著增加17.85%、20.92%和17.85%。表明在日光温室秋冬茬黄瓜生长过程中,可通过根施60mg·株-1的聚天门冬氨酸促进黄瓜植株生长、提高黄瓜产量,增加植株氮磷钾吸收量,从而提高肥料利用率。 相似文献
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野生韭菜生长旺盛,而且口味独特,在我国北方地区被广泛移栽.但由于技术等原因,许多移栽的野韭成活率低,产量也不高.现将野韭根株移栽技术介绍如下: 相似文献
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韭菜品种对迟眼蕈蚊抗性聚类分析 总被引：1，自引：1，他引：1
以叶片被害指数、虫口密度及感虫植株数/总株数3个抗性指标为评价标准,对20个韭菜栽培品种的韭蛆抗性进行了系统聚类分析。结果表明,不同品种对韭菜迟眼蕈蚊抗性存在一定的差异,豫韭1号和9-2抗虫性较强,雪韭王、竹竿青韭菜、91-2和宽韭王抗虫性较差,其余品种介于两类之间。3个抗性指标间的相关性达极显著水平。 相似文献
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SummaryAn experiment with Malus demonstrated that a large proportion of the transplanted root system was lost through death and decomposition soon after transplanting in the open ground. Mortality of the roots was not influenced by the rootstock cultivars or by defoliation but increased significantly with time. In the first month, shoots of maiden trees of Malus transplanted in June when in-leaf grew, but roots did not. Subsequently, most of the new roots on the rootstock M.9 regenerated from the rootstock stem, whereas with MM.106 the old coarse roots (>2.0 mm diameter) initially present at planting were most important. Root growth occurred in concert with shoot growth such that a functional balance was maintained as shown by the existence of a constant root length:leaf area ratio over a large part of the growing season. Following transplanting, the trees appear to re-establish their optimal ‘functional’ ratio by way of a co-ordinating pattern of growth tending to correct any disturbance to the ratio resulting from transplanting. Defoliation in the early establishment phase caused only a temporary initial reduction in the root growth, but reduced all the shoot growth variables measured and increased the root length:leaf area ratio throughout the growing season. 相似文献
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不同光质对韭菜生长及光合特性的影响 总被引：3，自引：0，他引：3
以791雪韭和紫根红两个韭菜品种为试验材料,设红光、蓝光、红/蓝（3/1）、红/蓝（7/1）4个处理,以白光为对照,研究不同光质对韭菜生长及光合特性的影响。结果表明：红/蓝（7/1）处理下韭菜株高、茎粗、叶宽及干鲜质量比均显著高于其他处理|叶绿素总量、叶绿素a/b值及类胡萝卜素含量均以红光处理最高|光合速率、气孔导度、蒸腾速率以及Fv/Fm、Fv/Fo均以红/蓝（7/1）处理最高,而蓝光处理下有较高的胞间CO2浓度、ФPSⅡ和qP。说明红/蓝（7/1）光质有利于提高韭菜叶片的光合作用,促进植株生长,提高产量。 相似文献
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D. C. E. Wurr E. F. Cox Jane R. Fellows 《The Journal of Horticultural Science and Biotechnology》2013,88(4):503-508
SummarySimilar experiments in 1984 and 1985 examined the effects of cauliflower transplant age and ‘high’ or ‘low’ nutrient feeding regimes during plant.raising on the numbers of leaves formed, the timing of curd initiation, maturity and other maturity characters. ‘High’ nutrient feed contained 104 mgl?1N and 290 mgl?1K whereas ‘low’ nutrient feed contained 52 mg l?1 N and 145 mg l?1 K. In addition, in 1985 the growth of other ‘low-feed’ plants was boosted by giving them ‘high feed’ during the last four days before transplanting. The raising treatments produced transplants which differed in dry weight, in the numbers of leaves formed and especially in dry-matter percentage. In both years the oldest ‘low-feed’ plants had the highest dry-matter percentage at transplanting (mean 22.2%) whereas the youngest ‘high-feed’ plants had the lowest dry-matter percentage (mean 12.9%). After transplanting, differences between treatments rapidly disappeared and there were few significant effects of treatments on the time of curd initiation, the final number of leaves formed, the time of 50% curd maturity and marketable curd yield. It is concluded that when planning cauliflower continuity schedules the time of transplanting is important but the precise age of plants at transplanting and the feeding regime prior to this need not be taken into account provided plant size is kept within normal limits. 相似文献
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以草莓为试材,进行田间小区和大棚控制试验,研究调查了施用公主岭霉素后草莓植株性状和果实性状的变化,以期明确施用公主岭霉素对草莓生长及果品质量的影响。结果表明:移栽后以公主岭霉素水浸提液灌根,"公主四号"和"公主三号"的移栽成活率最高达82.46%和84.57%,分别比对照提高了32.68%和18.15%,且定植后草莓幼苗在株高、叶柄长、叶长、叶宽、叶数、径冠等方面均优于对照,其中叶片大小和叶数的差异显著。移栽后的最佳灌根浓度为100×稀释液。该研究中叶片喷雾、灌根及喷雾与灌根协同施用,3种不同的施药方式下草莓生长的物候期均无明显变化。在草莓果实性状方面,灌根处理较其它2种方式显著,草莓最大果质量和平均果质量分别比对照提高12.18%和13.79%,且果实中可溶性固形物和果实硬度比对照显著提高。综上表明合理施用公主岭霉素可促进草莓苗势和果品质量的提升。 相似文献
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The growth, development and mineral contents of 3 cultivars of amarant (Amaranthus cruentus L.), ‘Large Leaf’, ‘Light Red’ and ‘Local Green’, were compared in a greenhouse study. There were small differences between the cultivars for the development per plant of leaf area, number of branches, number of nodes, and dry-weight production of stems, roots, inflorescences and most especially leaves at the edible stage. The 3 cultivars produced edible shoots between 5 and 7 weeks. There were, however, significant differences in the mineral content of the cultivars, in the order ‘Local Green’ > ‘Large Leaf’ > ‘Light Red’, for the concentrations of nitrogen, calcium, magnesium, iron and manganese. It is concluded that, although the 3 cultivars matured at the same time, ‘Local Green’ was the most nutritive as to mineral contents. 相似文献
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Sugar and starch levels were determined in leaves, fruits, bark and roots of the ‘Navelate’ variety (low yield) and compared with those of ‘Washington Navel’ (standard yield). Old leaves had the lowest sugar content in May, while young leaves had a decreasing content from spring to summer in both varieties. ‘Navelate’ had lower sugar content in leaves, bark and roots than ‘Washington Navel’. Starch levels in the leaves showed a maximum towards the end of May. In winter, ‘Navelate’ had a higher starch content, mainly in the roots and bark, due to its low yield. 相似文献