scholarly journals Assessment of the early growth of agarwood (Aquilaria crassna) seedlings under different sources of nutrients

2022 ◽  
Author(s):  
Kkiu Arunakumara ◽  
Bc Walpola ◽  
Chathura Karunatunga
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Soil Ph ◽  
Dry Weight ◽  
Stem Diameter ◽  
Soil Parameters ◽  
P Content ◽  
Chlorophyll Index ◽  
Different Sources ◽  
Aquilaria Crassna

The effect of different sources of nutrients on the growth of Aquilaria crassna seedlings was assessed by raising seedlings in polybags treated with inorganic fertilizer (IF), organic fertilizer (OF) and biofertilizer (BF) either alone or in combinations. The pots were established following a completely randomized block design with eight treatments: (T1) soil without IF, OF or BF ‒ control; (T2) soil + IF; (T3) soil + OF; (T4) soil + BF; (T5) soil + IF + OF; (T6) soil + IF + BF; (T7) soil + OF + BF; (T8) soil + IF + OF + BF each replicated five times. Plant height, stem diameter, dry weight of shoots and roots, leaf area and chlorophyll index were measured six months after planting. Soil pH (H<sub>2</sub>O) and available soil P content were measured as soil parameters. The best growth performances (54.30 cm, 6.48 mm, 7.10 and 5.92 g·plant<sup>–1</sup>, 435.33 cm<sup>2</sup> and 58 for plant height, stem diameter, shoot and root dry weight, leaf area and chlorophyll index, respectively) were recorded in T8, which also resulted in the highest available P content (18.96 mg·kg–1 soil). The lowest soil pH (H<sub>2</sub>O) value (6.02) was recorded in T7 followed by T6 (6.17). The application of IF, OF and BF as a combination could be recommended to promote the growth of Aquilaria seedlings.

scholarly journals RESPONSE OF GAMAL (Gliricidia sepium) AND INDIGOFERA (Indigofera zollingeriana) FORAGE ON APPLICATION OF ANORGANIC AND ORGANIC FERTILIZER

Pastura ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 33
Author(s):  
Roni N.G.K. ◽  
S.A. Lindawati
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Plant Species ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Stem Diameter ◽  
Inorganic Fertilizer ◽  
Organic Fertilizers ◽  
Total Dry Weight ◽  
Leaf Dry Weight

The productivity of forage depends on the availability of nutrients in the soil where it is grown, so fertilization to replace harvested produce is absolutely necessary. This study aims to study the response of gamal and indigofera forage on application of inorganic and organic fertilizers. Research using a completely randomized design factorial pattern of two factors, the first factor is the type of plant (G = Gamal; I = Indigofera) and the second factor is the type of fertilizer (T = without Fertilizer; A = Inorganic fertilizer NPK; K = commercial organic fertilizer; O = conventional organic fertilizer; B = bioorganic fertilizer), repeated 4 times so that it consists of 40 experimental units. The variables observed were plant height, number of leaves, stem diameter, leaf dry weight, stem dry weight, total dry weight of leaves, ratio of dry weight of leaves/stems and leaf area per pot. The results showed that there was no interaction between plant species and types of fertilizer in influencing the response of gamal and indigofera plants. Plant species have a significant effect on stem diameter, while fertilizer types have a significant effect on plant height, leaf dry weight, total dry weight of leaves and leaf area per pot. Based on the results of the study it can be concluded that the response of gamal plants is similar to indigofera, all types of fertilizers can improve the response of plants and organic fertilizers produce the same crop response with inorganic fertilizers. Keywords: gamal, indigofera, inorganic fertilizer, organic fertilizer

scholarly journals Tanggap Pertumbuhan Bibit Kopi Robusta (Coffea Robusta L.) Terhadap Berbagai Media Tanam Dan Frekuensi Penyiraman

1970 ◽  
Vol 5 (1) ◽  
Author(s):  
Lia Karlina Br Sembiring ◽  
Rosita Sipayung ◽  
Irsal
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Rice Husk ◽  
Dry Weight ◽  
Stem Diameter ◽  
Leaf Number ◽  
Root Weight ◽  
Total Leaf Area ◽  
Total Leaf ◽  
Fresh Root

Massive breeding is often the case with the availability of the amount of water that can be stored on the media. The aim of this research is to know the influence of media and the frequency of watering on the growth of robusta coffee seedlings and to find the best media and optimum watering frequency. This experiment was conducted at the Faculty of Agriculture, University of Sumatera Utara, Medan from June to September 2017. The experimental method used was Factorial Randomized Block Design with 2 treatment factors, ie 1: planting medium ie, topsoil ; topsoil: sand (2: 1); topsoil: rice husk (2: 1), topsoil: charcoal husk (2: 1) and factor 2: watering frequency ie, watered once a day; watered every 4 days; watered 7 days and watered once every 10 days. The variable was plant height, stem diameter, total leaf number, total leaf area, fresh crown weight, canopy dry weight, fresh root weight, root dry weight, longest root, and canopy and root ratio. The results showed that planting media treatment had a significant effect on plant height variables, stem diameter increase, leaf number, total leaf area, fresh crown weight, canopy dry weight, fresh root weight, root dry weight, and root canopy ratio. The best treatment of planting medium was found in topsoil treatment: rice husk (2: 1). The treatment of watering frequency had a significant effect on the stem diameter 2 - 12 of the week after planting move observation variable, total leaf area, fresh crown weight, dry crown weight, fresh root weight, and dry weight of roots. The best treatment frequency of watering hose is watering every 4 days. The interaction between the two treatments had a significant effect on the diameter of the stem diameter variable, the total leaf area and the fresh weight of the canopy.

Effects of Soil Amendments on Coastal Saline-Alkali Soil Improvement and the Growth of Plants

2013 ◽  
Vol 634-638 ◽  
pp. 152-159 ◽  
Author(s):  
Zhan Bin Huang ◽  
Zai Jin Sun ◽  
Zhao Hua Lu
Keyword(s):  
Humic Acid ◽  
Leaf Area ◽  
Plant Height ◽  
Soil Ph ◽  
Soil Amendments ◽  
Control Plant ◽  
Dry Weight ◽  
Soil Conditions ◽  
Fresh Weight ◽  
Alkali Soil

Soil salinization is one of the major land degradation types and has greatly influenced sustainable agricultural development. Interest is growing in the use of soil amendments to reclaim saline and sodic soils. According to the practical soil conditions in the Yellow River Delta and the special characteristics of the coastal saline soil, in order to find the effects of combined applications of desulfurization gypsum, humic acid and polyacrylamide on saline-alkali soil, pot experiment was conducted to analyze the chemical properties and plant yields. L8(27) design was selected to engage in orthogonal experiment with first class interaction of three factors at two levels. The results demonstrated that applying soil amendments significantly increase the total salt content, decreased the soil pH and SAR. The effect on treatment 8(30g/kg desulfurization gypsum , 2g/ kg of humic acid , 0.025g/kg PAM) was the most significant, cotton soil pH and SAR decreased to 7.63 and 7.22, corn soil pH and SAR decreased to 7.57 and 7.34. The effects of soil amendments on crop growth showed that the treatment 7, combination of soil amendments (30g/kg desulfurization gypsum ,2g/ kg of humic acid , 0.01g/kg PAM) could promote the growth of cotton most significantly. Compared with the control, plant height, leaf area fresh weight and dry weight increased 33.4%,41.7%,82.2% and 237.8% respectively. The combination 8 of soil amendments (30g/kg FGD gypsum, 2g/ kg of humic acid ,0.025g/kg PAM) could promote the growth of corn most significantly. Compared with the control, plant height, leaf area fresh weight and dry weight increased 20.7%, 35.9%, 49.9%和47.9% respectively. There was no significant interaction between the three soil amendments.

scholarly journals 841 PB 387 PHOSPHORUS RATES AND MEDIA FOR PRODUCTION OF TOMATO TRANSPLANTS USING THE FLOAT SYSTEM

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 553f-553
Author(s):  
Jim E. Wyatt ◽  
Marla C. Akridge
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Production System ◽  
Dry Weight ◽  
Stem Diameter ◽  
Plastic Foam ◽  
Growing Media ◽  
Root Dry Weight ◽  
P Rate ◽  
Nutrient Solutions

Tomato transplants were grown in plastic foam trays floated in nutrient solutions using a system adapted from tobacco transplant growers. Nutrient solutions were compared which contained equivalent amounts of nitrogen and potassium and either 35 or 70 mg·liter-1 phosphorus (P). Growing media tested were 1) Jiffy-Mix*, 2) Pro-Mix®, 3) horticultural vermiculite, or 4) perlite. The higher P rate caused increases in stem diameter, and in plant fresh and dry weight. Plant height, root dry weight and leaf area were not affected by P rate. Transplants grown in Pro-Mix® had significantly greater plant height and stem diameter than other media. Leaf area, and plant fresh and dry weight did not differ between Pro-Mix* and Jiffy-Mix@. Vermiculite and perlite produced smaller tomato transplants and should not be considered when using this production system.

scholarly journals The Vegetative Growth Response of Detam Soybean Varieties towards Bacillus subtilis and Trichoderma sp. Applications as Bio-fertilizer

2021 ◽  
Vol 232 ◽  
pp. 03024
Author(s):  
Agus Miftakhurrohmat ◽  
Sutarman
Keyword(s):  
Bacillus Subtilis ◽  
Leaf Area ◽  
Plant Height ◽  
Dry Weight ◽  
Stem Diameter ◽  
Observation Data ◽  
Root Dry Weight ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Soybean Plants

This study aims to determine the effect of bacterial isolates of Bacillus subtilis Bs-Sdj-01 and Trichoderma sp. Tc-Jro-02 isolates as biological fertilizer in plant growth until the end of the vegetative phase. The experiment was arranged factorially in a Completely Randomized Design (CRD) with each factor being the application of B. subtilis consisting of and without B. subtilis and the Trichoderma application consisting of with and without Trichoderma; the experiment was repeated four times. The observed variables were: plant height, stem diameter, number of leaves, leaf area, stover dry weight, root dry weight, and B. subtilis population at the end of the observation. Data were analyzed using with ANOVA and HSD tests at the 5% level. The combination of Trichoderma sp. and B. subtilis bacteria produce the highest increase in plant height, stem diameter, number of leaves, leaf area, stover dry weight, and root dry weight of soybean plants up to 35 days after planting and increase B. subtilis population grew from 1010 CFU.g-1 to be 4.43x1011 CFU.g-1. The presence of Trichoderma supports the activity of B. subtilis in the rhizosphere of the Detam variety soybean plantation.

scholarly journals Effect of Photoselective Shadecloth and Plastic Film on Growth of Chrysanthemums under Supplemental Lighting

HortScience ◽  
2004 ◽  
Vol 39 (4) ◽  
pp. 837C-837
Author(s):  
Kent D. Kobayashi*
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Wide Spectrum ◽  
Dry Weight ◽  
Stem Diameter ◽  
Leaf Number ◽  
Plastic Film ◽  
Root Dry Weight ◽  
Supplemental Lighting ◽  
Leaf Dry Weight

Controlling plant height is an important practice in the ornamental plant industry. With high cost of growth regulators and concern about their environmental aspects and health of workers, alternative ways of controlling growth may be advantageous. Objective was to determine effect of photoselective shadecloth and plastic film on growth of `Barbara', `Shasta', and `Chesapeake' mums under supplemental lighting. In experiment 1, `Barbara' plants (two and four weeks old) were placed under either wide spectrum fluorescent lamps and incandescent light bulbs (control) or lights covered with photoselective shadecloth. In experiment 2, 3-week-old `Shasta' and `Chesapeake' plants were placed under lights or lights covered with photoselective plastic film. Effect of shadecloth differed with age of `Barbara' plants. For 1-month-old plants placed under lights, stem diameter, stem dry weight, and root dry weight were reduced under shadecloth compared to control. No differences were observed for plant height, pot height, leaf number, leaf area/plant, and leaf dry weight. For 2-week-old plants, leaf number, leaf area/plant, leaf dry weight, and stem dry weight were less under shadecloth than control. No effects on plant height, pot height, stem diameter, and root dry weight were observed. Plastic film reduced plant height and pot height for `Shasta' and `Chesapeake' plants and reduced stem dry weight and total plant dry weight for `Shasta'. No differences were seen for other growth measurements. This study indicated photoselective shadecloth did not control height of `Barbara' and its effect on growth was influenced by plant age. Photoselective plastic film controlled height of `Shasta' and `Chesapeake' and offers an alternative method for growth control of mum plants.

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 Effect of Spraying with Water Hyacinth and Silverleaf Extractson Growth and Yield of Sunflower (Helianthus annuus L.)

2021 ◽  
Vol 904 (1) ◽  
pp. 012062
Author(s):  
W K Houry ◽  
A M A Alkaisy ◽  
A F Almehemdi
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Water Hyacinth ◽  
Total Yield ◽  
Dry Weight ◽  
Stem Diameter ◽  
Growth And Yield ◽  
Spring Season ◽  
Fall Season ◽  
Herb Extract

Abstract A field experiment was carried out in one of the special fields Al-Jazirah - Al-Budhiyab located at latitude 38.28° north and longitude 43.19° east, to find out the effect of different concentrations of the extract of the Water hyacinth and silverleaf plants in three varieties of sun flower. The experiment was applied using a split-plate arrangement within an RCBD design with three replications. The main plots were represented by the varieties Ishaqi, Sakha, and Iqmar, and the sub plots included the spray concentrations 0, 5, 15 and 25 mg L-1. The results showed that the Iqmar variety was superior in plant height (179.73 cm) in the spring season, and the cultivar Ishaqi (175.50 cm) in the fall season. The variety also outperforms generously in leaf area (307.4 cm2) in the fall season. As for the extracts, the water hyacinth outperformed the plant height (177.74 and 175.11 cm) in both seasons, respectively. And in the stem diameter (20.45 mm) in the spring season and in the dry weight of the weeds (0.045 and 0.053 g m2) in both seasons respectively. While silverleaf herb extract exceeded the leaf area (213.9 and 271.1 cm2) in both seasons sequentially and the stem diameter (20.86 mm) in the fall season, the silverleaf herb extract reduced the dry weight of the weeds (0.032 and 0.043 g m2) in both seasons respectively. He increased the weight of 1000 seeds (59.25 and 67.20 grams) in both seasons and the total yield (3.26 ton ha-1) in the fall season. The 15 mg L-1 concentration also increased plant height (180.02 cm) and leaf area (208.9 cm2) in the spring season, disc diameter (22.39 cm) in the fall season and the number of seeds (924 seeds per disc-1). While the concentration increased plant height (176.19 cm) and leaf area (276.8 cm2) in the fall season. The concentration outperformed 5 mg L-1 in stem diameter (19.65 and 20.32 mm) in both seasons and increased the weight of 1000 seeds (59.57 and 67.94 g) in both seasons sequentially and the overall yield (4.35 and 3.18 ton ha-1) in both seasons. Sequentially. We conclude that there is a fluctuation in the behavior of the same crop varieties due to the overlap of study factors and in different directions, so it is recommended to individualize the factors in their influence on the varieties to know the behavior of those varieties more accurately.

scholarly journals Rhizobacteria inoculation in maize associated with nitrogen and zinc fertilization at sowing

2021 ◽  
Vol 25 (2) ◽  
pp. 96-100
Author(s):  
Andréia de L. Moreno ◽  
Jorge F. Kusdra ◽  
Angelita A. C. Picazevicz
Keyword(s):  
Bacillus Subtilis ◽  
Nitrogen Content ◽  
Plant Height ◽  
Nitrogen Fertilization ◽  
Azospirillum Brasilense ◽  
Dry Weight ◽  
Stem Diameter ◽  
Wide Range ◽  
Maize Plants ◽  
Total Dry Weight

ABSTRACT Rhizobacteria have a wide range of plant growth-promoting mechanisms of action, making them an alternative and/or complementary biological input for chemical fertilizers. In this respect, the present study aimed to assess growth and nitrogen accumulation in maize plants as a function of Azospirillum brasilense, Bacillus subtilis, zinc and nitrogen application at sowing. The experiment with the ‘AL Bandeirante’ maize variety was conducted in a greenhouse, using a completely randomized design. The treatments were arranged in a 2 x 2 x 2 x 2 factorial scheme, with six repetitions, considering the presence and absence of Azospirillum brasilense (5 g kg-1), Bacillus subtilis (5 mL kg-1) and zinc (20 g kg-1) in the seeds and addition or not of nitrogen (30 kg ha-1) to the soil. The variables assessed were plant height, stem diameter, leaf, stem, shoot, root and total dry weight, and shoot nitrogen content. Nitrogen fertilization in the absence of zinc increased shoot and total dry weight as well as shoot nitrogen content. Zinc applied to the seeds improved the total and stem dry weight of maize plants in the absence of Bacillus subtilis. Inoculation with Azospirillum brasilense and Bacillus subtilis increased the stem diameter and shoot nitrogen content of maize plants when nitrogen fertilization was not performed at sowing. There was no isolated or interaction effect between factors for plant height and root dry weight.

scholarly journals PEMANFAATAN PUPUK ORGANIK CAIR PAITAN (Tithonia diversifolia) PADA BERBAGAI DOSIS DAN RAGAM APLIKASINYA TERHADAP PERTUMBUHAN KAILAN (Brassica oleracea Var. Acephala)

2020 ◽  
Vol 11 (1) ◽  
pp. 25
Author(s):  
AHMAD TAOFIK ◽  
SOFIYA HASANI ◽  
AYU CAHYANINGTYAS ◽  
BUDY FRASETYA
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Analysis Of Variance ◽  
Growth Parameters ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Fresh Weight ◽  
Application Method ◽  
Randomized Design ◽  
Two Factors

The paitan plant contains allelopathic compounds for other plants so that the utilize of paitan plant as a source of liquid organic fertilizer (LOF) has not been widely applied. This research aimed to study the interaction between LOF dosage and appropriate application method of LOF to increase the growth of kailan plants. The research conducted at experimental garden of UIN Bandung from June-August 2016. The experimental design was a completely randomized design with two factors and replicated four times. The first factor was application methods (A), i.e. a1=direct application to the soil, and a2= spraying. The second factor was LOF dosage (T), i.e. t0: 0 ml plant-1, t1: 20 ml plant-1, t2: 40 ml plant-1, t3: 60 ml plant-1, t4: 80 ml plant-1. The growth parameters observed i.e. plant height (14, 21, 28, 35 and 42 Day after Transplanting (DAT)), leaf area 42 DAT, plant dry weight 42 DAT, and plant fresh weight 42 DAT. The data then analyzed with analysis of variance at a significant level of 5%. If the analysis of variance was significant, the Duncan multiple range test was used at α=5%. The research results showed there was no interaction between method of application with a various dosage of paitan LOF to all of the growth parameters. The application paitan LOF showed similar growth in terms of plant height, leaf area, plant dry, and plant fresh weight. The application method of paitan LOF direct to the soil or spraying to leaves can not increase kailan plant growth.

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