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Effect of Combined foliar spray on Heavy Metals Accumulation in Facility Fruit Vegetables

Agricultural Biotechnology 2020年第5期9卷 32-36页

作者： Huiwei ZHAO Jumei LI Xueping SHI Yiming LIU Chuan LU Shuo SUN National Semi-arid Agricultural Technology Research Center Shijiazhuang 050051China Institute of Agriculture Resources and Regional Planning Chinese Academy of Agricultural SciencesBeijing 100081China Hebei Province Environmental Monitoring Center Shijiazhuang 050072China

In order to explore the effects of combined foliar spray which was prepared from potassium fulvate and Zn on heavy metal accumulations in three kinds of facility fruit vegetables,cucumber,tomato and white melon,the foliar spray was applied from fruit setting to *** results showed that the combined foliar spray significantly promoted the absorption of Zn and Cu in the three fruit vegetables,blocked the absorption of Cr,As and Pb in cucumber,significantly blocked the absorption of Cd in white melon,blocked the absorption of Pb in white melon,and showed a tendency of blocking the absorption of heavy metals Cd and As in tomato.

关键词： foliar spray Facility fruit vegetables Accumulation of heavy metals Impact

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Influence of Nitrogen Levels and Application Methods on Yield and Quality of Sorghum

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Pedosphere 2008年第2期18卷 236-241页

作者： A.RASHID R.U.KHAN H.ULLAH Arid Zone Research Irstitute Department of Agronomy Faculty of Agriculture Gomal University

A field study was conducted for two years at the Arid Zone Research Institute, Dera Ismail Khan, Pakistan, to determine the optimum level of nitrogen and efficient application method in the production of sorghum （Sorghum bicolor L.）. Using four levels of nitrogen, i.e., 0, 60, 90, and 120 kg ha^-1, and two different application methods （soil application and foliar spray）, the experiment was laid out in a split-plot design, where the main plots were used to determine the effective method of application and the subplots were used to detect the influence of N levels on the grain yield. The average data obtained after two years of study indicated an increase in the grain yields with an increase in N levels irrespective of the method used of N application. The grain yield increased from 2.92 to 5.61 t ha^-1 in the plots that were treated with 90 kg N ha^-1 compared with the control plots. Quadratic regression analysis showed that the increase in the yield was higher at the lower levels of N compared with the succeeding higher levels. The soil application method, producing an average grain yield of 4.79 t ha^-1, was found to be superior to the foliar spray method with an average grain yield of 4.56 t ha^-1. The protein content of the grain showed a linear increase with N application, attaining the maximum at 120 kg N ha^-1 in both the methods of N application. In addition, compared with the method of soil application, higher crude protein contents were observed using the method of foliar spray at all N levels.

关键词： foliar spray grain yield N level protein content soil application

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Roles of different fertilizer management practices on mulberry leaf yield and quality

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International Journal of Agricultural and Biological Engineering 2017年第5期10卷 104-114页

作者： Faruque Ahmed Rafia Sultana Oli Ahmed Md.Akhtaruzzaman Md.Toufiq Iqbal Bangladesh Sericulture Research and Training Institute Rajshahi 6207-Bangladesh Department of Agronomy and Agricultural Extension University of RajshahiRajshahi 6205-Bangladesh

Effects of fertilizer management practices on leaf yield and quality of mulberry plant are important for sustainable mulberry plant *** study was undertaken to improve the growth,yield and biochemical contents in an instant available form in mulberry plant through different fertilizer management *** were four fertilizer management practices like control(CT),basal(BS),urea+magic growth(UM)and basal+urea+magic growth(BUM)were applied on mulberry plant(Morus SPP.).Results of this investigation revealed that among the various fertilizer treatments on the foliar application of(3 g urea+3 mL magic growth)per liter water with BSRTI recommended BS of NPK performed well in respect of growth parameters and biochemical *** highest 10 leaf area(638.64 cm^(2)),leaf number per branch(50),total leaf weight per plant(785.64 g),node per meter(28.67),specific leaf weight(0.005817 g/cm^(2)),length of longest shoot(173.25 cm)and total leaf yield per hectare per year(41610 kg)were noticed in BUM treatment followed by UM,BS and CT *** the highest moisture(74.38%),moisture retention capacity(33.31%),total mineral(12.10%),total sugar(3.99%),reducing sugar(4.05%),crude protein(21.01%),starch(9.72%)and soluble carbohydrate(11.41%)were also recorded in BUM treatment as compare to UM,BS and CT *** outcome of research implies that among the four fertilizer management practices foliar spray of(3 g urea+3 mL magic growth)per liter water with BSRTI recommended BS dose of NPK performed well and successfully augments the productivity and biochemical constituents of mulberry plant.

关键词： liquid fertilizer silkworm foliar spray photosynthesis pruning

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Efficacy of Beneficial Fungi Isolates in Solanum lycopersicum L. Protection against Lepidopteran Insects through a Leaf Inoculation Technique

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Advances in Microbiology 2023年第2期13卷 89-105页

作者： Joelle Toffa Elie Ayitondji Dannon Yeyinou Laura Estelle Loko Hervé Bokossa Josky Adikpeto Appolinaire Adandonon Manuele Tamò International Institute of Tropical Agriculture (IITA) Tri Postal Cotonou Bénin Laboratoire d’Entomologie Appliquée Ecole Nationale Supérieure des Biosciences et Biotechnologies Appliquées/Université Laboratoire d’Entomologie Appliquée Ecole Nationale Supérieure des Biosciences et Biotechnologies Appliquées/Université Nationale des Sciences Technologies Ingénierie et Mathématiques d’Abomey au Bénin Dassa Bénin University of Abomey-Calavi (UAC) Calavi Bénin National University of Agriculture (UNA) Ketou Benin

Helicoverpa armigera is a key insect pest of tomatoes reducing drastically yields. The effect of the endophytic colonization of tomato plants by Beauveria bassiana using leaf spray as an inoculation method on damage and survival of H. armigera was assessed in a screen house. Two B. bassiana isolates (Bb 115 and Bb 11) and two tomato varieties (a local variety Tounvi and an improved variety Padma) were included in the study. The adaxial and abaxial leaf surfaces were sprayed at a concentration of 107 conidia/ml and 109 conidia/ml for each isolate and each of the two tomato varieties. Thirty days after inoculation, five discs of tomato leaf and tomato root were cut for each isolate, each concentration per isolate and for each variety. The samples were incubated at room temperature (28°C ± 2°C) and periodically checked for fungal growth. Larval survival was checked and a damage assessment was done on tomato flowers and the leaves. The results show that the lowest Mean Survival Times (MSTs) were recorded on larvae feeding on plants inoculated with Bb 11 (4.2 ± 0.8 days against 11.5 ± 0.2 days for control). Compared to the other treatments, low damage rates of the flowers of the improved variety inoculated with Bb 11 at 109 conidia/ml were recorded from the 6th Day After Inoculation (DAI). This rate remains low until the end of treatment. Overall flower damage was lower than leaf damage. The results showed large differences in pathogenicity, with most endophytic isolate belonging to Bb 11 when inoculated at 109 conidia/ml using the leaf spraying technique. Data were discussed with regard to the use of endophytism B. bassiana in an integrated tomato pest control approach.

关键词： Tomato Insect Beauveria bassiana foliar spray Endophytic Pest Management

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