scholarly journals Physiology and growth of the watermelon grown under nitrogen, phosphorus and potassium rates via mineral and organic fertilizer

2020 ◽  
Vol 9 (11) ◽  
pp. e2509119677
Author(s):  
Francisco de Sales Oliveira Filho ◽  
Francisco Hevilásio Freire Pereira ◽  
Ewerton Gonçalves de Abrantes ◽  
Pedro Alves dos Santos ◽  
Carlos Alberto Lins Casimiro ◽  
...  
Keyword(s):  
Leaf Area ◽  
Dry Matter ◽  
Organic Fertilizer ◽  
Mineral Fertilizer ◽  
Organic Fertilizers ◽  
Nutrient Concentrations ◽  
Dry Matter Accumulation ◽  
Growth Responses ◽  
Combined Application ◽  
Phosphorus And Potassium

The aim of this study was to evaluate the physiological and growth responses of watermelon under application of NPK rates using different proportions of mineral and organic fertilizers. The experiment was taken place in an area located at the Federal University of Campina Grande (UFCG), Campus Pombal - PB (6º48'16'' S and 37º49'15'' W), during the period from June to September 2013. The treatments consisted of three nutrient concentrations of N, P and K (50, 100 and 150% of NPK recommendation for watermelon) and five proportions of mineral and organic fertilizer (100/0, 75/25, 50/50, 25/75 to 0/100). The design was a randomized block in factorial scheme 3 x 5, with four replications. The amount of 100 % was the corresponding NPK 120 kg ha-1, respectively, for N, P and K. They were evaluated: gas exchange, leaf dry matter, stem, fruit and leaf area. The concentration of 150 % of the recommended NPK to the culture of watermelon was the most effective in increasing the physiological characteristics and dry matter accumulation in stem, leaf, fruit, and leaf area. The combined application of mineral and organic fertilizer provides equivalent photosynthetic rate isolated application of mineral fertilizer with an 50/50 ratio the most effective for this variable. The proportions 75/25 and 50/50 were the most efficient in dry matter accumulation in watermelon.

scholarly journals Nutrition and growth of potted gerbera according to mineral and organic fertilizer

2015 ◽  
Vol 21 (2) ◽  
pp. 251 ◽  
Author(s):  
Francielly Torres Santos ◽  
Fernanda Ludwig ◽  
Luiz Antonio de Mendonça Costa ◽  
Mônica Sarolli Silva de Mendonça Costa
Keyword(s):  
Dry Matter ◽  
Organic Fertilizer ◽  
Mineral Fertilizer ◽  
Organic Fertilizers ◽  
State University ◽  
Organic Fertilization ◽  
Alternative Source ◽  
Aerial Parts ◽  
Number Of Leaves ◽  
Culture Growth

In order to meet the growing market of gerbera, it is necessary to develop studies that maximize its production, especially using organic fertilizer. In order to assess the nutrition and growth of potted gerbera conducted with mineral and organic fertilization, an experiment in a greenhouse was done, located at Western Paraná State University, Brazil. The experimental design was made in randomized blocks, with four replications and five treatments. The treatments were defined according to the source of fertilization, mineral (NPK) or organic. The organic fertilization were obtained by diluting in water four organic compost of poultry slaughter waste, obtained from in the composting process, in order to adjust electrical conductivity. The solution of the compost was used as organic fertigation, making the organic treatments. The liquid organic fertilizer, as well as irrigation of mineral treatment, was performed manually once a day. At the end of vegetative and reproductive periods, the levels of N, P, K, Ca, Mg and Fe were quantified in the plant tissue. At the same time, biometric parameters were assessed (number of leaves, plant diameter, leaf area, dry matter of aerial parts, number of heads, inflorescence dry matter, stem height, head diameter and diameter stem). The liquid organic fertilizers, obtained by composting procession of poultry slaughter waste, can be used as alternative source for potted gerbera nutrition, since they provide better or higher culture growth than the mineral fertilizer.

scholarly journals Effects of reduced application of special organic fertilizers on tea production

2021 ◽  
pp. 939-945
Author(s):  
Jinbao Liu ◽  
Minghui Jin ◽  
Zhongan Mao
Keyword(s):  
Organic Fertilizer ◽  
Economic Benefits ◽  
Organic Fertilizers ◽  
Treatment Results ◽  
Yield Increase ◽  
Combined Application ◽  
Tea Production ◽  
Phosphorus And Potassium ◽  
Tea Plants ◽  
Nitrogen Phosphorus

A trial of special fertilizer reduction and combined application of organic fertilizer on tea production, nutrients and economic benefits was carried out in the tea garden at Shihe Port, Xinyang, Henan Province, China. The experiment has six treatments of customary fertilization (CK), 100% special fertilizer for tea (T1), nitrogen reduction 20% (T2), 40% (T3), 60% (T4) and 100% (T5), and special fertilizers at the same time. Among the special fertilizer treatments for tea plants, the germination density, 100-bud weight, fresh tea yield, N, P, and K content of new shoots and economic benefits were the highest in T1 treatment, Results showed that the yield range of the five treatments was 460～632.4kg hm2. Compared with CK, the yield increase rates were 6.11, 1.99, -4.21, -13.76 and -22.82%, respectively. The growth rates of barber bud density and 100-bud weight were -20.00～25.83 and 8.40～ 8.40%, respectively. The content of nitrogen, phosphorus and potassium in the new shoots varied by 0.623～1.070, 0.047～0.183 and 1.380～2.237%, respectively. Therefore, the special fertilizer for tea plants can reduce the nitrogen by 20% to save costs and increase efficiency. Bangladesh J. Bot. 50(3): 939-945, 2021 (September) Special

scholarly journals Influence of Phosphorus Levels and Phosphorus Solubilizing Fungi on Yield and Nutrient Uptake by Wheat under Sub-Humid Region of Rajasthan, India

ISRN Agronomy ◽  
2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Amita Sharma ◽  
U. S. Rawat ◽  
B. K. Yadav
Keyword(s):  
Nutrient Uptake ◽  
Dry Matter ◽  
Crop Growth ◽  
Aspergillus Awamori ◽  
Wheat Crop ◽  
Dry Matter Accumulation ◽  
Straw Yield ◽  
Combined Application ◽  
Phosphorus And Potassium ◽  
Phosphorus Levels

The aim of the present study was to assess the influence of phosphorus levels and phosphorus solubilizing fungi on yield and nutrient uptake by wheat. The dry matter production by wheat at tillering, ear emergence, and harvest was significantly higher with 90 kg P2O5 ha−1 and was at par with 60 kg P2O5 ha−1. Application of Aspergillus awamori gave the highest dry matter accumulation at tillering, ear emergence, and harvest stage of crop growth. Increasing levels of phosphorus increased the grain and straw yield significantly up to 60 kg P2O5 ha−1 of wheat crop. However, the maximum grain and straw yield were obtained at 90 kg P2O5 ha−1, which was at par with 60 kg P2O5 ha−1. The combined application of 60 kg P2O5 ha−1 with A. awamori recorded significantly higher grain and straw yield. Increasing level of P application (0 to 90 kg P2O5 ha−1) and inoculation with A. awamori and A. niger significantly increased uptake of N, P, and K in wheat at all stages of crop growth. The maximum nitrogen, phosphorus, and potassium uptake was recorded at harvest (grain and straw) followed by ear emergence and tillering when seeds were inoculated with Aspergillus awamori.

scholarly journals Effect of Spraying of Organic Fertilizers (ALGAZON) and Dry Yeast Extract on some Vegetative Parameters and the Yield of Volatile Oil and its Qualities of Myrtus (Myrtus communis L.)

2020 ◽  
Vol 33 (2) ◽  
pp. 95-105
Author(s):  
Ikbal I. Salih ◽  
Fatima A. Hasan ◽  
Khawla H. Mohammed
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Yeast Extract ◽  
Dry Matter ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Specific Weight ◽  
Stem Diameter ◽  
Organic Fertilizers ◽  
Oil Yield

This study was conducted at the nursery of Agricultural Research Station, Agriculture College, University of Basrah, Qarmat Ali campus, at the agricultural season 2018-2019. The Experiment was conducted using Randomized Complete Block Design (R.C.B.D), with two factors, the First factor was organic fertilizer (ALGAZON) with three concentrations (0, 1.5 and 3) ml. L-1, the Second factor was dry yeast extract in three concentrations (0, 3 and 6) g. L-1, by five sprinkles one month between them and a five-day difference between the factors. The results showed that spraying with organic fertilizer (Algazon) at a concentration of 3 ml.L-1, led to a significant increase on the plant height, the main stem diameter, leaf area, main branches number, the fresh and dry weight of the leaves, the dry matter percentage of the leaves, the percentage of oil, the oil yield in the plant, the productivity of volatile per hectare, specific weight and the density of the oil. Sprinkle with dry yeast extract at 6 g. L-1, resulted a significant increase in all vegetative parameters studied and oil yield. The interaction between the organic fertilizers (ALGAZON) spraying treatments was 3 ml. L-1 and dry yeast extract 6 g. L-1, were a significant effect, led to an increase in plant height, the main stem diameter, leaf area, the branches number , Fresh and dry weight of the leaves and the percentage of dry matter, the percentage of oil, Yield oil in plant, productivity of volatile per hectare, refractive index, specific weight and the density of the oil.

scholarly journals Organic Fertilizer Comparison on Growth and Nutrient Content of Three Kale Cultivars

2020 ◽  
Vol 30 (2) ◽  
pp. 176-184 ◽  
Author(s):  
Natalie Yoder ◽  
Jessica G. Davis
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Organic Fertilizer ◽  
Organic Fertilizers ◽  
Cultivar Differences ◽  
Nutrient Concentrations ◽  
Fertilizer Treatment ◽  
Leaf Weight ◽  
Certified Organic ◽  
The Impact

Selecting supplemental nitrogen (N) fertilizer for use on certified organic farms can be difficult and confusing. There are many options commercially available to farmers with similar N concentrations but widely different ingredients. Experiments were conducted in a certified organic field and high tunnels near Fort Collins, CO in 2013 and 2014 to evaluate the impact of organic fertilizers on yield and nutrient concentrations of three kale (Brassica oleracea and Brassica napus) cultivars. This study includes an organic fertilizer (cyano-fertilizer), which is produced on-farm by growing N-fixing cyanobacteria (Anabaena cylindrica) in raceway ponds. The three fertilizer treatments were hydrolyzed fish emulsion, alfalfa (Medicago sativa) meal, and cyano-fertilizer. These were applied at rates calculated by subtracting soil nitrate concentration from a target 50 mg·kg−1 to the depth of 6 inches of soil. Cyano-fertilizer and hydrolyzed fish emulsion were applied in liquid form, while the alfalfa meal was incorporated dry into the soil before planting. Biweekly measurements of plant height were taken on three cultivars of kale: Dinosaur, Red Russian, and Winterbor. Leaf weight, leaf area, and N, iron (Fe), and zinc (Zn) concentrations were measured during three to four monthly harvests each year. Organized in a split-plot experimental design, there were three treatment replications with subplots of different kale cultivars. Fertilizer treatment did not significantly affect plant height, leaf weight, leaf area, or plant N, Fe, and Zn concentrations. However, there were cultivar differences in plant height, leaf area, and yield. Kale cultivar choice had a larger impact on yield and plant nutrient concentrations than fertilizer choice, because fertilizers were applied at similar N rates.

scholarly journals Paclobutrazol Improves Sesame Yield by Increasing Dry Matter Accumulation and Reducing Seed Shattering Under Rainfed Conditions

2021 ◽  
Author(s):  
Muhammad Zeeshan Mehmood ◽  
Ghulam Qadir ◽  
Obaid Afzal ◽  
Atta Mohi Ud Din ◽  
Muhammad Ali Raza ◽  
...  
Keyword(s):  
Leaf Area ◽  
Seed Production ◽  
Seed Yield ◽  
Dry Matter ◽  
Biomass Accumulation ◽  
Total Biomass ◽  
Dry Matter Accumulation ◽  
Seed Shattering ◽  
Rainfed Conditions ◽  
Leaf Greenness

AbstractSeveral biotic and abiotic stresses significantly decrease the biomass accumulation and seed yield of sesame crops under rainfed areas. However, plant growth regulators (such as Paclobutrazol) can improve the total dry matter and seed production of the sesame crop. The effects of the paclobutrazol application on dry matter accumulation and seed yield had not been studied before in sesame under rainfed conditions. Therefore, a two-year field study during 2018 and 2019 was conducted with key objectives to assess the impacts of paclobutrazol on leaf greenness, leaf area, total dry matter production and partitioning, seed shattering, and seed yield of sesame. Two sesame cultivars (TS-5 and TS-3) were treated with four paclobutrazol concentrations (P0 = Control, P1 = 100 mg L−1, P2 = 200 mg L−1, P3 = 300 mg L−1). The experiment was executed in RCBD-factorial design with three replications. Compared with P0, treatment P3 improved the leaf greenness of sesame by 17%, 38%, and 60% at 45, 85, and 125 days after sowing, respectively. However, P3 treatment decreased the leaf area of sesame by 14% and 20% at 45 and 85 days after sowing than P0, respectively. Compared with P0, treatment P3 increased the leaf area by 46% at 125 days after sowing. On average, treatment P3 also improved the total biomass production by 21% and partitioning in roots, stems, leaves, capsules, and seeds by 23%, 19%, 23%, 22%, and 40%, respectively, in the whole growing seasons as compared to P0. Moreover, under P3 treatment, sesame attained the highest seed yield and lowest seed shattering by 27% and 30%, respectively, compared to P0. This study indicated that by applying the paclobutrazol concentration at the rate of 300 mg L−1 in sesame, the leaf greenness, leaf areas, biomass accumulation, partitioning, seed yield, and shatter resistance could be improved. Thus, the optimum paclobutrazol level could enhance the dry matter accumulation and seed production capacity of sesame by decreasing shattering losses under rainfed conditions.

scholarly journals Differential Growth Responses of Wheat Seedlings to Elevated CO2

2018 ◽  
Vol 10 (3) ◽  
pp. 400-409 ◽  
Author(s):  
Hamid Reza ESHGHIZADEH ◽  
Morteza ZAHEDI ◽  
Samaneh MOHAMMADI
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Elevated Co2 ◽  
Co2 Concentration ◽  
Tolerance Index ◽  
Dry Matter Accumulation ◽  
Wheat Cultivars ◽  
Growth Responses ◽  
Differential Growth ◽  
Wheat Seedlings

Intraspecific variations in wheat growth responses to elevated CO2 was evaluated using 20 Iranian bread wheat (Triticum aestivum L.) cultivars. The plants were grown in the modified Hoagland nutrient solution at a greenhouse until 35 days of age using two levels of CO2 (~380 and 700 µmol mol–1). The shoot and root dry weights of the wheat cultivars exhibited average enhancements of 17% and 36%, respectively, under elevated CO2. This increase was associated with higher levels of chlorophyll a (25%), chlorophyll b (21%), carotenoid (30%), leaf area (54%) and plant height (49.9%). The leaf area (r = 0.69**), shoot N content (r = 0.62**), plant height (r = 0.60**) and root volume (r = 0.53*) were found to have important roles in dry matter accumulation of tested wheat cultivars under elevated CO2 concentration. However, responses to elevated CO2 were considerably cultivar-dependent. Based on the stress susceptibility index (SSI) and stress tolerance index (STI), the wheat cultivars exhibiting the best response to elevated CO2 content were ‘Sistan’, ‘Navid’, ‘Shiraz’, ‘Sepahan’ and ‘Bahar’, while the ones with poor responses were ‘Omid’, ‘Marun’, ‘Sorkhtokhm’ and ‘Tajan’. The findings from the present experiment showed significant variation among the Iranian wheat cultivars in terms of their responses to elevated air CO2, providing the opportunity to select the most efficient ones for breeding purposes.

scholarly journals Development and Use of a Planter for Simultaneous Application of Seed, Fertilizer and Compost in Pearl Millet Production in Niger—Effects on Labor Use, Yield and Economic Return

Agronomy ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1886
Author(s):  
Abdourahamane Issa M. Nourou ◽  
Addam Kiari Saidou ◽  
Jens B. Aune
Keyword(s):  
Pearl Millet ◽  
Organic Fertilizer ◽  
Cropping System ◽  
Mineral Fertilizer ◽  
Cereal Crops ◽  
Randomized Experiments ◽  
Economic Return ◽  
Simultaneous Application ◽  
Combined Application ◽  
Reduced Time

Sowing and application of mineral and organic fertilizer is generally done manually in the Sahel, resulting in low precision and delayed application. The objective of this paper is to present a new mechanical planter (Gangaria) for the combined application of seeds and soil amendments (mineral fertilizer, compost, etc.), and to assess the effects of using this planter in pearl millet on labor use, yield and economic return. The labor study showed that the mechanized application of seeds and compost reduced time use by a factor of more than six. The on-station experiments were completely randomized experiments with six replications and six treatments: T0 (control), T1 (0.3 g NPK hill−1), T2 (25 g compost hill−1), T3 (25 g compost + 0.3 g NPK hill−1), T4 (50 g compost hill−1) and T5 (50 g compost + 0.3 g NPK hill−1). Treatments T1 to T5 were sown by the planter with seeds that were primed in combination with coating of seeds with a fungicide/insecticide. The treatment T5 increased grain yield and economic return compared to the control by 113% and 106%, respectively. The advantages for farmers using this approach of agricultural intensification are timelier sowing of dryland cereal crops, easy application of organic fertilizer and more precise delivery of input, thereby making this cropping system more productive and less vulnerable to drought.

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