scholarly journals Effect of Humic Acid on Fruit Yield Attributes, Yield and Leaf Nutrient Accumulation of Apple trees under Calcareous Soil

2018 ◽  
Vol 11 (15) ◽  
pp. 1-8
Author(s):  
Hidayatullah ◽  
Ahmed Khan ◽  
Mouladad ◽  
Mirwise ◽  
Nisar Ahmed ◽  
...  
Keyword(s):  
Humic Acid ◽  
Calcareous Soil ◽  
Fruit Yield ◽  
Nutrient Accumulation ◽  
Apple Trees ◽  
Yield Attributes

scholarly journals Effects of Cover Methods and Nitrogen Levels on the Growth and Yield of Tomato

2021 ◽  
Vol 4 (2) ◽  
pp. 1021-1033
Author(s):  
Nguyen Thi Loan ◽  
Tran Thi My Can
Keyword(s):  
Yield Components ◽  
Field Experiments ◽  
Block Design ◽  
Tomato Fruit ◽  
Dry Weight ◽  
Fruit Yield ◽  
Growth And Yield ◽  
Plastic Mulch ◽  
Yield Attributes ◽  
Black Plastic

To study the effects of cover methods and nitrogen (N) levels on the growth and yield components of tomato Cv. Pear F1, field experiments with a 4x3 factorial design were conducted in the 2019 spring and winter seasons using a randomized complete block design with three replications. The cover methods included four treatments: bare soil (BS), black plastic mulch (BPM), transparent polypropylene row cover (RC), and a combination of BPM and RC (BPMRC) with the RC removed approximately 30 days after transplanting. Nitrogen (N) was applied at three levels (150, 180, and 210 kg N ha-1). Using BPM and RC generally led to an increased air temperature, air humidity, soil moisture, and soil temperature compared to the BS treatment. Higher N rates (180 and 210 kg N ha-1) did not result  in different tomato fruit sizes and fruit weights but positively increased fruit yield and quality (Brix values and fruit dry weight) as compared to the 150 kg N ha-1 addition. The cover methods positively affected the yield components and fruit yield of tomato as well as the fruit characteristics compared to the BS treatment. Using cover materials (BPM and RC) combined with a higher N application significantly increased the yield attributes and fruit yield. The highest fruit yield was achieved under the mulching treatment by black plastic (BPM treatment) combined with a 210 kg N ha-1 application, resulting in 50.90 tons ha-1 in the spring and 58.27 tons ha-1 in the winter.

scholarly journals Effect of cow dung as organic manure on the growth, leaf biomass yield of Stevia rebaudiana and post harvest soil fertility

2017 ◽  
Vol 15 (2) ◽  
Author(s):  
MM Zaman ◽  
T Chowdhury ◽  
K Nahar ◽  
MAH Chowdhury
Keyword(s):  
Calcareous Soil ◽  
Biomass Yield ◽  
Acid Soil ◽  
Plant Nutrients ◽  
Nutrient Loss ◽  
Leaf Biomass ◽  
Cow Dung ◽  
Total N ◽  
Yield Attributes ◽  
Post Harvest

Organic manures as a source of plant nutrients for the cultivation of field crops has received worldwide attention due to rising costs, rapid nutrient loss and adverse environmental impacts from inorganic fertilizers. A pot experiment was conducted in the net house of the Department of Agricultural Chemistry, BangladeshAgriculturalUniversity, Mymensingh to observe the effects of cow dung on growth, yield of stevia along with post-harvest fertility status of soil. Four treatments of CD viz. 0, 5, 7.5 and 10 t ha–1 in two contrasting soils (acid and non-calcareous) were examined following Completely Randomized Design (CRD) with three replications. Growth and yield attributes increased significantly with the advancement of growth period (60 DAP) and increased rate of CD up to 10 t ha–1. An overall performance of non-calcareous soil was better than acid soil. In non-calcareous soil, the leaf biomass yield was increased by 275% whereas in acid soil it was 268% over control. The acidity of both soils significantly decreased with the increased rate of CD. All essential plant nutrients viz. total N, available P exchangeable K, Ca, Mg, available S, Zn, B and organic matter content of soil were significantly increased with the increased levels of CD up to its highest dose (CD @ 10 t ha–1) in both soils. Thus from the findings of the present research work it can be concluded that for getting optimum leaf biomass yield of stevia along with fertility of both soils CD should be applied @ 10 t ha–1J. Bangladesh Agril. Univ. 15(2): 206-211, December 2017

scholarly journals Effect of N, P, K, and Mg application on yield and fruit Quality of mandarin (Citrus reticulata)

2013 ◽  
Vol 38 (3) ◽  
pp. 425-433
Author(s):  
Shamima Nasreen ◽  
R Ahmed ◽  
MA Ullah ◽  
MA Hoque
Keyword(s):  
Fruit Quality ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Fruit Yield ◽  
Gross Margin ◽  
Marginal Rate ◽  
Piedmont Plain ◽  
Yield Attributes ◽  
Total Soluble Sugar

The study was carried out at the farmer's field of Juri Upazilla, Maulavibazar District during 2008-2009, 2009-2010, and 2011-2012 to find out the proper combination of fertilizer nutrients that promotes better fruit yield and quality of mandarin (cv. Khashi Kamla). The treatments were Native nutrient i.e., control (TI), N150P50K150Mg30 (T2), N200P75K175Mg40 (T3), N250P100 K200Mg50 (T4), N300P125K225Mg60 (T5), and N200P75K175Mg0 (T6) g/plant/year. In addition, 20 kg cowdung/plant was used as blanket dose. Yield components, yield, and TSS content (%) of mandarin varied significantly due to variation of nutrients in all the test years. Fruit yield/plant was improved significantly with increase in NPK and Mg dose irrespective of years. Application of Mg in combination with NPK increased 17-157% mean fruit yield over magnesium control. Significantly the highest yield and yield attributes were recorded under treatment N300 P125 K225 Mg60 g/plant (T5) along with 20 kg cowdung/plant in all the years. Total soluble sugar (%) content was also maximum in trees receiving N300P125K225Mg30 g/plant. The highest gross margin and marginal rate of return were achieved by the same treatment (T5). The lowest fruit yield/plant was obtained from untreated control plot (native nutrient). Three years’ study revealed that application of N300P125K225Mg60 along with 20 kg cowdung/plant would be economically optimum for achieving higher yield and better fruit quality in mandarin grown under piedmont plain soil. DOI: http://dx.doi.org/10.3329/bjar.v38i3.16969 Bangladesh J. Agril. Res. 38(3): 425-433, September 2013

scholarly journals Seasonality of nutrients in leaves and fruits of apple trees

2006 ◽  
Vol 63 (5) ◽  
pp. 493-501 ◽  
Author(s):  
Gilmar Ribeiro Nachtigall ◽  
Antonio Roque Dechen
Keyword(s):  
Apple Tree ◽  
Soil Nutrient ◽  
Nutrient Concentrations ◽  
Nutrient Accumulation ◽  
Apple Trees ◽  
Leaf Sampling ◽  
Vegetative Cycle ◽  
Accumulation Curves ◽  
Fruit Harvest ◽  
Tree Fruits

The nutrient accumulation curves of apple trees are good indicators of plant nutrient demand for each developmental stage. They are also a useful tool to evaluate orchard nutritional status and to estimate the amount of soil nutrient removal. This research aimed at evaluating the seasonality of nutrients in commercial apple orchards during the agricultural years of 1999, 2000, and 2001. Therefore, apple tree leaves and fruits of three cultivars 'Gala', 'Golden Delicious' and 'Fuji' were weekly collected and evaluated for fresh and dry matter, fruit diameter and macronutrient (N, P, K, Ca and Mg) and micronutrient (B, Cu, Fe, Mn, and Zn) concentrations. Leaf and fruit sampling started one or two weeks after full bloom, depending on the cultivar, and ended at fruit harvest or four weeks later (in the case of leaf sampling). In general, leaf concentrations of N, P, K, Cu, and B decreased; Ca increased; and Mg, Fe, Mn, and Zn did vary significantly along the plant vegetative cycle. In fruits, the initial nutrient concentrations decreased quickly, undergoing slow and continuous decreases and then remaining almost constant until the end of fruit maturation, indicating nutrient dilution, once the total nutrient accumulation increased gradually with fruit growth. Potassium was the nutrient present in highest quantities in apple tree fruits and thus, the most removed from the soil.

Mobility and distribution of zinc forms in columns of an acid, a neutral, and a calcareous soil treated with three organic zinc complexes under laboratory conditions

Soil Research ◽  
2002 ◽  
Vol 40 (5) ◽  
pp. 791 ◽  
Author(s):  
J. Novillo ◽  
A. Obrador ◽  
L. M. López-Valdivia ◽  
J. M. Alvarez
Keyword(s):  
Humic Acid ◽  
Calcareous Soil ◽  
Water Soluble ◽  
Soil Profiles ◽  
Sequential Fractionation ◽  
Organic Zinc ◽  
Exchangeable Fraction ◽  
Neutral Soil ◽  
Acid Nature ◽  
Extractable Zn

Three liquid zinc (Zn) fertilisers were mixed with the upper 1.5 cm of columns representing 3 different soil profiles: Aquic Haploxeralf, of an acid nature and with hydromorphic problems; Calcic Haploxeralf, of a neutral nature; and Typic Xerorthents, of a calcareous nature. They were periodically irrigated for 60 days. Most of the applied Zn remained in the top of the soil when it was added as Zn-lignosulfonate plus EDTA or Zn-2-hydroxy-1,2,3-propanotricarboxilate. When Zn-EDTA plus fulvic and humic acid fertiliser was applied, Zn migrated and distributed throughout the soil resulting in losses of Zn by leaching of 2.29% in acidic soil, 27.36% in neutral soil, and 10.5% in calcareous soil of the Zn applied. The 3 fertilisers produce sufficient concentrations of the bioavailable Zn forms in the Ap horizons (DTPA and Mehlich-3 extractable Zn) for the cultivation of different plants. In the calcareous soil, which contained free CaCO3, the amount of Zn extracted by Mehlich-3 was higher than in soils with no free CaCO3. Distribution of Zn in the soil was studied at the beginning and end of the experiment by means of one sequential fractionation and showed that added Zn remained in more labile fractions for uptake by plants in the acid and neutral soils when compared with the control. When Zn was added to calcareous soil, no amount of Zn was detected in the water-soluble plus exchangeable fraction at the end of experiment for any Zn fertiliser source.

scholarly journals Bioefficacy Study of Bacillus subtilis Based Biofungicide on Leaf Spot Disease, Growth and Yield Attributes of Tomato [Solanum lycopersicum L.] CV. Arka Vikas

2020 ◽  
pp. 35-41
Author(s):  
Ajay Kumar Tiwari ◽  
B. K. Singh ◽  
Trivikram . ◽  
A. K. Singh ◽  
Pankaj Kumar Singh
Keyword(s):  
Bacillus Subtilis ◽  
Solanum Lycopersicum ◽  
Leaf Spot ◽  
Fruit Yield ◽  
Growth And Yield ◽  
Leaf Spot Disease ◽  
Yield Attributes ◽  
Spot Disease ◽  
Solanum Lycopersicum L ◽  
Yield Parameters

The present study entitled “Bioefficacy study of Bacillus subtilis based biofungicide on leaf spot disease, growth and yield attributes of tomato [Solanum lycopersicum L.] cv. ArkaVikas” was conducted at Vegetable Research Farm, Department of Horticulture, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi during rainy season of 2016-17 in Randomized Block Design (RBD) with three replications. The treatments included foliar spray of chemical fungicide (Copper oxychlooride) and biofungicide (Taegro® and Trichoderma) either alone or in combination. Taegro® is a bacterial biofungicide containing 1×1010 CFU/g (13%w/w) of Bacillus amyloliuefaciens strain FZB24 formulated as WP. A total of 12 characters including disease, growth and yield parameters were studied. Disease parameter included leaf spot disease incidence (%) and disease severity (%) whereas growth and yield parameters included days to 50% flowering, height, number of branches per plant, fruit length (cm), fruit width (cm), number of fruits per plant, average fruit weight (g), number of seed per fruit, fruit yield per plot (kg), fruit yield per hectare (kg) were studied. The biofungicide Taegro exhibited significant potential in reducing the leaf spot in tomato and improving the growth and yield attributes of tomato as compared to control. But combined used of Taegro with standard chemical copper oxychloride gave better result than Taegro alone. As a consequence, this may be used as part of an integrated disease management approach so as to minimizes the use of standard fungicides and also protect the environment from pollution and maintenance of the human health.

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