نتایج جستجو برای: leaf nutrition
تعداد نتایج: 165401 فیلتر نتایج به سال:
grafting and silicon improve photosynthesis and nitrate absorption in melon (cucumis melo l.) plants
grafting of cucurbitaceae species to some rootstocks seems to be especially beneficial for the nitrogen nutrition of these plants. moreover, melons (cucumis melo l.) have been considered among those plants that could benefit from the addition of silicon (si) in the nutrient solution (ns). thus, two experiments were carried out in the following order: (i) it was investigated how grafting affects...
A new fertilizer technology developed at Penn State University offers several potential benefits for turfgrass cultivation. The new technology employs a phosphorus buffering system (PBS), which , maintains a steady phosphorus concentration in the soil solution over time. The PBS has the size and consistency of sand (Fig. 1) and can be mixed with any soil media. Once charged with phosphorus, the...
For obtaining a spatial map of the distribution nitrogen nutrients from oil palm plantations, quite complex Leaf Sampling Unit (LSU) is required. In addition, sample analysis in laboratory time consuming and expensive, especially for large plantation areas. Monitoring nutrition plants can be achieved using remote-sensing technology. The main obstacles passive sensors multispectral imagery are c...
Leaf senescence, the final stage of leaf development, is a complex and highly regulated process that involves a series of coordinated actions at the cellular, tissue, organ, and organism levels under the control of a highly regulated genetic program. In the last decade, the use of mutants with different levels of leaf senescence phenotypes has led to the cloning and functional characterizations...
Strong antioxidant activity of Pelargonium graveolens is well known. The question addressed in this study was whether different concentrations of exogenous ascorbic acid (AsA) and iron (Fe) were able to influence antioxidant activity and total phenol content (TPC) of geranium. Thus, three levels of Fe (0, 20 and 40 µM) and three levels of AsA (0, 1 and 2 mM) in nutrient solution were c...
Abstract This research was performed in a completely randomized block design with four replications to investigate zinc (Zn) and manganese (Mn) nutrition effects on greenhouse tomato (Lycopersicon esculentum Mill. cv. HAMRA) in a perlite-containing media. Experimental treatments were: (1) control (Mn and Zn-free nutrient solution), (2) application of Mn in a concentration equal to the full Hoag...
Effect of Nutrient Source Type and Planting Media on Growth Yield Quality Microgreen Broccoli (Brassica oleracea var. italica Planck). The use types nutrient sources planting media is the most important thing in cultivation microgreen broccoli which functions to support growth development so as get good yields. purpose this study was obtain best source growing increasing yield. designed factori...
The circular economy concept promotes the recycling of agricultural waste. This study was aimed at investigating effects cattle horn shavings on apple tree nitrogen nutrition. Ligol trees P 60 rootstock were object study. experiment conducted in experimental orchard Institute Horticulture, Lithuanian Research Centre for Agriculture and Forestry, from 2015 to 2018. Two fertiliser rates tested: 5...
plants absorb nutrients needed for plant type, growing season, depending on soil and yield. absorb of nutrient 30-90 percent depends management practices in the use of fertilizer. can be used fertilizers in most cases soil and for foliar feeding can be quickly absorbed into the plant at the proper levels of nutrition in cucumber. in this experiment, was used a split plot in a randomized complet...
Nitrogen and and phosphorus are important components of plant nutrition. However inappropriate use of these nutrients can affect physiological aspects of plant. Therefore, in order to evaluate the response of some physiological parameters in purslane sucuulent plant to plant nutrition, an experiment was conducted as a RCBD with a split plot in time arrangement, which that nine levels of plant n...
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