نتایج جستجو برای: greenhouse crops
تعداد نتایج: 71599 فیلتر نتایج به سال:
Several potential cover crops were evaluated for their susceptibility to Meloidogyne arenaria race 1, M. incognita race 1, and M. javanica in a series of five greenhouse experiments. No galls or egg masses were observed on roots of castor (Ricinus communis), cowpea (Vigna unguiculata cv. Iron Clay), crotalaria (Crotalaria spectabilis), or American jointvetch (Aeschynomene americana). Occasional...
The tropical armyworm, Spodoptera litura (F.) (Lepidoptera: Noctuidae), is an important pest of tobacco, Nicotiana tabacum L. (Solanales: Solanaceae), in South China that is becoming increasingly resistant to pesticides. Six potential trap crops were evaluated to control S. litura on tobacco. Castor bean, Ricinus communis L. (Malpighiales: Euphorbiaceae), and taro, Colocasia esculenta (L.) Scho...
اندازهگیری تغییرات باقیمانده قارچکش متالاکسیل در خیار تولید شده تحت شرایط گلخانههای صنعتی و سنتی
Vegetable crops are exposed to repeated spraying against the pests and diseases during the growing sessions. Crops such as greenhouse cucumber are usually harvested a short time after spraying, bearing a high level of pesticides with them. This fact justifies a research on this problem. This research was carried out to determine the effects of metalaxyl (a fungicide commonly used in greenhouse)...
Predator-prey interactions form the core of biological control of arthropod pests. Which tools can be used to monitor and collect carnivorous arthropods in natural habitats and targeted crops? Eco-friendly and effective field lures are urgently needed. In this research, we carried out olfactometer experiments assess innate positive chemotaxis to pollen of seven crop and banker plant by two impo...
Solanaceous crops (tomato, pepper and eggplant) constitute about 60% of greenhouse-cultivated areas. Their importance is also obvious when considering the large volume of scientific papers published on relevant subjects. Among Solanaceae, the most researched crop is tomato. Considerable attention has been paid to pepper during the last few years, while eggplant is less studied. The great volume...
Predator-prey interactions form the core of biological control of arthropod pests. Which tools can be used to monitor and collect carnivorous arthropods in natural habitats and targeted crops? Ecofriendly and effective field lures are urgently needed. In this research, we carried out olfactometer experiments assess innate positive chemotaxis to pollen of seven crop and banker plant by two impor...
An expected global increase in bioenergy-crop cultivation as an alternative to fossil fuels will have consequences on both global climate and local air quality through changes in biogenic emissions of volatile organic compounds (VOCs).While greenhouse gas emissionsmay be reduced through the substitution of next-generation bioenergy crops such as eucalyptus, giant reed, and switchgrass for fossi...
Biogas and bio-methane that are based on energy crops are renewable energy carriers and therefore potentially contribute to climate protection. However, significant greenhouse gas emissions resulting from agricultural production processes must be considered. Among those, the production and use of fertilizer, and the resulting leaching of nitrous oxide (N2O) are crucial factors. This paper provi...
will consist of biofuels rather than conventional petrol or diesel by 2020. But this component of the Commission's goals is just one that has been causing concern for researchers. In the face of rapidly rising demand for crops to be used as food, and growing worries about the true environmental benefit of some potential biofuels, concerns have been raised about this EU target. Stavros Dimas, th...
Iron deficiency is a worldwide nutritional constraint in agricultural lands especially in calcareous soils. Cultivation of crops tolerant to Fe-deficiency is an approach to combat Fe deficiency. The aim of this investigation was to evaluate Fe-efficiency of selected important crops in Iran. A completely randomized block design in triplicates was conducted at IUT research greenhouse in fall 2006...
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