scholarly journals Growth and nutrients content of heliconia under mineral fertilization

2019 ◽  
Vol 25 (3) ◽  
pp. 307-313 ◽  
Author(s):  
Ariadna Linares-Gabriel ◽  
Armando Guerrero-Peña ◽  
Mario Alejandro Hernández-Chontal ◽  
Gloria Esperanza De Dios-León ◽  
Nereida Rodríguez-Orozco

Abstract Heliconias have great commercial importance due to their durability of inflorescences, sizes, forms and bright colors. Regarding its production, the mineral nutrition of the crop is one of the most relevant aspects to obtain quality floral stems. The objective was to determine the influence of N-P-K on the growth and nutritional content of Heliconia stricta Dwarf Jamaican. A completely randomized block design was used with four treatments and five repetitions. The treatments consisted in fertilizing the soil with N-P-K. The levels of fertilization expressed in kg ha-1 of NPK were: control without application 00-00-00 (T100), 31-31-31 (T231), 62-62-62 (T362) and 93-93-93 (T493). The plants received the treatments for six months. Growth variables and nutrient contents of heliconia biomass were evaluated. The analysis of variance showed significant statistical differences (P ≤ 0.05) in the vigor and color of the plant, as well as the phosphorus, magnesium and copper contents. The significant increases in vigor and color were with doses 31-31-31 and 62-62-62 of NPK. As for the contents of P, Mg and Cu were influenced by doses 31-31-31, 62-62-62 and 93-93-93 of NPK. This work shows important findings in relation to the nutritional diagnosis in the foliar content of nutrients.

Author(s):  
Lilian Guimarães de Favare ◽  
Otávio Peres Filho ◽  
Marcelo Dias de Souza ◽  
Diego Arcanjo do Nascimento ◽  
Sheila Espindola de Matos ◽  
...  

The plants nutritional maintenance is a support to their natural defense in relation to the insects attack of economic importance. The mineral nutrition arises as an alternative, since it provides the plants silvicultural conditions necessary to express all their productive potential, with the power of resistance to biotic constraints. Thus this study had as objective to evaluate the effect of different formulations of mineral fertilization in the eucalyptus plantations in relation to occurrence of Glycaspis brimblecombei (Moore), in the field. The experiment was carried out in the field from December 2015 to December 2016. The experimental arrangement was planned provided in the factorial design, with three origins of Eucalyptus sp. (Eucalyptus camaldulensis Dehn; hybrids (Eucalyptus urophylla S.T. Blake) x Eucalyptus grandis (Hill ex Maiden) and E. urophylla x E. camaldulensis); and seven nutritional formulations. The research data were subjected to analysis of variance (ANOVA), under a randomized block design in a factorial scheme (3 x 7), and the means compared by the Tukey test at 5% probability of error. The response variable used in the analysis was the occurrence of eggs and lerps, being transformed, in order to become suitable for parametric tests. The population fluctuation was carried out in the planting annual cycle. For the correlation analysis between the dependent and the independent variables, the data were analyzed by Pearson correlation (r) and their values were analyzed by using the Student's T-Test. The omissions influenced on the preference of the red gum lerp psyllid to Eucalyptus sp. In E. camaldulensis the omission of nitrogen and potassium influence on the preference and the absence of silicon causes the favoring of the pest oviposition. In the hybrid E. urophylla x E. grandis the absence of fertilization and the absence of nitrogen, phosphorus, potassium, individually, are less preferred.


Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2661
Author(s):  
Millena Monteiro dos Santos ◽  
Cleidson Alves da Silva ◽  
Eduardo France Oza ◽  
Ivoney Gontijo ◽  
José Francisco Teixeira do Amaral ◽  
...  

It is important to consider the nutritional demand among genotypes of the same species to achieve high yields. Thus, the objective of this study was to determine the concentration of nutrients in leaves, flowers, grains, and fruit straw in conilon coffee genotypes. The experiment was carried out under a randomized block design, with three replications and the evaluation of nine genotypes. Leaf collections were carried out every three months, from August 2019 to May 2020. Flowers were collected at flowering in July 2019 and fruits in June 2020, upon complete maturation of the genotypes. The materials were dried in an oven and sent for laboratory analysis to determine the nutritional content. Data were subjected to analysis of variance followed by a comparison of means and estimates of genetic parameters and clustering using the hierarchical method (UPGMA). The nutrients found in the highest concentrations in the evaluated plant organs were N and K for macronutrients and Fe for micronutrients. For the leaves, the concentrations of the main nutrients were high in the first and reduced in the last evaluated periods, possibly due to mobilization to the fruits. Considering all the plant tissues evaluated, the order of concentration of macronutrients and micronutrients was N > K > Ca > P = Mg = S and Fe > B > Mn > Cu > Zn, respectively. For a nutritional diagnosis, it is important to take comparisons of the genetic diversity and evaluation periods into consideration.


2019 ◽  
Author(s):  
João Macedo Moreira ◽  
Aldrin Martin Pérez-Marin ◽  
Jucilene Silva Araújo ◽  
George Rodrigues Lambais ◽  
Aldo Sales

The study aimed to evaluate the efficiency of nutrient use in three cactus forage (CF) cultivars (Opuntia stricta and Nopalea cochenillifera), 365 days after planting under different types of fertilizer in two research sites (Condado and Riachão) of the semi-arid region of Paraiba state, Brazil. The experimental design was a randomized block design with treatments in a factorial scheme (3×4), three cultivars of CF (Orelha de elefante Mexicana; Miúda; Bahiana), and four fertilizer treatment (Control; Manure; Manure with Nitrogen; Mineral fertilization) with four replications. The CF cultivars did not differ significantly in nutrient use. That means of physiological efficiency by CF cultivars were 1.62, and 2.36 kg of biomass per kg of nutrient applied in Condado and Riachão, respectively. The efficiency of nutrient recovery was 16% for the Condado, according the following order: K> P> Ca> N> C = Mg and 12% for Riachão: K> P> N> C = Ca = Mg. In the two research sites, the treatment with mineral fertilization significantly increased the efficiency use of N, P and K in comparison to the other treatments. The average for efficiency of nutrient utilization was 25% and 19% for Condado and Riachão, respectively, in the following order for Condado: K> P> N> Ca = Mg> C, and Riachão: K> P> N> C> Mg = Ca. In a CF production system aiming to obtain a yearly harvest cycle, it is necessary to replenish of K and P to maintain the nutritional balance between the soil and CF plant.


2018 ◽  
Vol 14 (2) ◽  
pp. 14-28
Author(s):  
Bukhari Bukhari ◽  
Nuryulsen Safridar

This research was conducted in Pante Cermin, Padang Tiji Subdistrict, Pidie District. in March to August 2015, with the aim to know the use efficienci of Trichoderma sp on the growth of several types of Banana seedlings (Musa Paracica L.) This research using Randomized Block Design (RAK) factorial pattern with the factors studied is the type of banana and trichoderma dose . Both factors consist of 4 levels: Banana Barangan (J1), Ambon banana (J2), Banana King (J3) and Geupok banana (J4). While the dose of Tricoderma sp is: TO = 0 g / seeds T1 = 15 g / seeds T2 = 30 g / seedlings and T3 = 45 g / seedlings. So there are 16 treatment combinations and repeated 3 times, which resulted in 48 experimental units.To determine the influence of each treatment and its interaction on the growth of banana seedlings, the analysis of variance (Test F) and continued with the test of Beda Nyata Jujur (BNJ) at 5% level.The results showed that the growth of good banana seedlings among 4 species studied was shown by Barangan bananas, but not unlike bananas. However, trichoderma administration until the age of 4 months has not shown the growth and intensity of different attacks. So it should be extended the study period to 6 months. After 6 months of research there has been a difference in growth and intensity of attack, where the intensity of the greatest attack is shown by T0 (without trichoderma). Medium intensity of smallest attack is shown by T3 (Dose trichoderma sp 45 gr / banana seedlings). The type of banana does not affect the growth and intensity of fusarium wilt attack. and the interaction of these two factors had no significant effect on the growth of banana seedlings and the intensity of Fusarium wilt disease.


Pro Food ◽  
2018 ◽  
Vol 3 (2) ◽  
pp. 207-216
Author(s):  
Mira Idora ◽  
Agustono Prarudiyanto ◽  
Ahmad Alamsyah

The purpose of this research was to know the best combination of rice bran and grains of rice flour that cloud be seen from some quality components of cookies include moisture, protein and ash content, organoleptic quality such as flavour referring to National Indonesian Standard (SNI). This research use Compoletely Randomized Block Design, consist of six treatments (100% wheat flour, 30% rice bran: 70% grains of rice flour, 40% rice bran: 60% grains of rice flour, 50% rice bran: 50% grains of rice flour, 60% rice bran: 40% grains of rice flour, 70% rice bran: 30% grains of rice flour) with three replications. The data were analyzed using Analysis of Variance diversity at 5% significance level using Co-Stat Software and tested further using Orthogonal Polynomials test if there was real difference. The results showed that the proportion of rice bran and grain of rice flour had significant effect on taste, aroma, texture and color (hedonic and scoring), protein and ash content, but not significantly different to moisture of cookies. The results of this study also showed that the proportion of white rice brain and grains of rice flour which produced cookies with the best quality in accordance with SNI quality requirements was the treatment of 30% rice bran: 70% grains of rice flour (4.8008% moisture, 6.0461% protein content and 1.9274% ash content, with flavor, aroma, texture and color which was very favored by the panelists where cookies with yellowish brown color and slightly crunchy texture). Keywords:cookies, grains of rice flour, rice bran flour, white rice. ABSTRAK Tujuan penelitian ini yaitu untuk mengetahui kombinasi terbaik dari tepung bekatul dan tepung menirterbaik dilihat dari beberapa komponen mutu cookies meliputi kadarair, kadar protein, kadar abu dan mutu organoleptik seperti bau, rasa, aroma dan tekstur yang mengacu pada Standar Nasional Indonesia (SNI). Penelitian ini menggunakan Rancangan Acak Kelompok (RAK), terdiri dari enam perlakuan (Tepung terigu 100%, Tepung Bekatul 30%: Tepung Menir 70%, Tepung Bekatul 40% : Tepung Menir 60%, Tepung Bekatul 50% : Tepung Menir 50%, Tepung Bekatul 60% : Tepung Menir 40% dan Tepung Bekatul 70%: Tepung Menir 30%) dengan tiga kali ulangan. Data hasil penelitian dianalisis menggunakan analisis keragaman ANOVA (Analysis of Variance) pada taraf 5% menggunakan Software Co-Stat dan diuji lanjut menggunakan uji lanjut Polinomial Ortogonal jika terdapat beda nyata. Hasil penelitian menunjukkan bahwa proporsi tepung bekatul dan tepung menir memberikan pengaruh yang berbeda nyata terhadap parameter rasa, aroma, tektur dan warna (Hedonic dan Scoring), kadar protein dan kadar abu, namun tidak berbeda nyata terhadap kadar air cookies. Hasil penelitian ini juga menunjukkan bahwa proporsi tepung bekatul dan tepung menir yang menghasilkan cookies dengan mutu terbaik yang sesuai dengan syarat mutu SNI adalah perlakuan tepung bekatul 30% : tepung menir 70% (kadar air 4,8008%, kadar protein 6,0461% dan kadar abu 1,9274%, dengan rasa, aroma, tektur dan warna sangat disukai panelis dimana cookies berwarnacokelat kekuningan dan tekstur agak renyah). Kata kunci:beras putih, cookies, tepung bekatul, tepung menir


Agric ◽  
2016 ◽  
Vol 26 (1) ◽  
pp. 75
Author(s):  
Jalalina Abdillah ◽  
Nugraheni Widyawati ◽  
Suprihati

<p>Tape yeast in certain dose is required in making tape. Addition of 5% sugar could increase the sweetness as well as energy for the microorganissm. The experiment about the effect of yeast dosage and sugar addition on the quality of wheat grain tape in the Laboratory of Faculty of Science and Mathematics Satya Wacana Christian University started from 29th February until 23rd April 2012. This research used Randomized Block Design (RBD) with six treatments as follows: 1% yeast; 2% yeast; 3% yeast; 1% yeast with sugar; 2% yeast with sugar; 3% yeast with sugar. Finally, data of the result were analyzed using analysis of variance (ANOVA) and honestly significant difference (HSD) at 5% level. The research showed that: 1) 1% yeast dose had the highest quality of wheat tape compared to 2% and 3% yeast dose, 2) 1% yeast dose with sugar gave the best taste from organoleptic test.</p>


2020 ◽  
Vol 33 (1) ◽  
pp. 81-89
Author(s):  
CLEITON DALASTRA ◽  
MARCELO CARVALHO MINHOTO TEIXEIRA FILHO ◽  
PABLO FORLAN VARGAS

ABSTRACT A balanced periodicity of the nutrient solution flow is essential for better agronomic performances and low production costs in hydroponic systems. Thus, the objective of this work was to evaluate the effect of periodicity of exposure of lettuce plants to the nutrient solution in an NFT hydroponic system on the production, nutrition, and profitability of this crop. The experiment was conducted in a randomized block design with five replications. The treatments consisted of four periodicities of exposure of lettuce plants to the nutrient solution, consisting of intervals of 60, 30, and 15 minutes between pumping periods of 15 minutes; and uninterrupted flow of the nutrient solution. The plants were harvested at 30 days after transplanting, and 15 lettuce plants of each experimental plot were used to determine total fresh weight; root fresh weight; shoot freshweight; and contents of N, P, K, Ca, Mg, S, B, Cu, Fe, Mn, and Zn in shoots, roots, and in the diagnostic leaf; accumulation of these nutrients in shoots and roots; and nitrate and ammonium contents in plant shoot. The highest production and profitability of lettuce were found using uninterrupted nutrient solution flow, which provided higher shoot and root nutrient contents to plants, and resulted in a better nutrient use efficiency.


Revista CERES ◽  
2016 ◽  
Vol 63 (3) ◽  
pp. 412-418 ◽  
Author(s):  
Claudir José Basso ◽  
Marlo Adriano Bison Pinto ◽  
Antônio Luis Santi ◽  
Rodrigo Ferreira da Silva ◽  
Diecson Ruy Orsolin da Silva

ABSTRACT Wheat and corn are important grains in the agricultural scenario of Brazil, and demand adequate supply of nutrients, particularly nitrogen, in crop succession. The use of pig slurry (PS) as a full and/or partial alternative to mineral fertilization in crop areas has been identified as an important alternative for the disposal of this waste. Therefore, the objective of this study was to evaluate the utilization of PS as fertilizer in wheat/corn succession under some plant parameters and grain yield. The experiment was conducted under field in randomized block design with four replications and five treatments, three with PS (40, 80, 160 m³ ha-1) and two controls (no fertilization and mineral NPK fertilization), which were applied manually in the soil shortly after sowing the crops. The application of PS proved to be a significant source of nutrients in wheat/corn succession. In comparison to NPK fertilization, this increase was only of 5.4% and 4.7% for wheat and corn, respectively. PS is an efficient alternative and it can be used as a source of these nutrients in wheat/corn succession, and the use of 80 m3ha-1 provides satisfactory results for all evaluated variables.


Author(s):  
G P Clagett ◽  
G M Graeber ◽  
H Hufnagel ◽  
R Carter ◽  
W Gregory ◽  
...  

Thrombogenicity and healing characteristics were evaluated for 3 commonly used vascular prostheses: expanded poly-tetrafluorethylene (PTFE), knitted Dacron (KD), and velour knitted Dacron (VKD). Adult mongrel dogs were randomly allocated to receive thoracoabdominal aortic prostheses (6 animals for each type prosthesis) according to a randomized block design. Prostheses were 28-32 cm in length and 10 mm in diameter. Platelet survival (PS) studies were performed pre-op and every 6-8 weeks post-op for 1 year. PS data were subjected to analysis of variance and are shown {X ± SEM} below.PS, normal in each group pre-op, was shortened by all prostheses post-op; however, VKD reduced PS significantly more than KD and PTFE. At the end of 1 year, PS in animals with KD returned to normal but remained shortened in those with VKD and PTFE. Animals with VKD had the shortest PS throughout. Prostheses were then removed to assess coverage of luminal surface with prostacyclin-producing pseudointima. KD demonstrated the most complete coverage (90.6±5.5% of surface area) followed by VKD (56.3±9.6%) and PTFE (34.0±5.3%), p<0.02. These studies demonstrate that important differences exist among vascular prosthetic materials in initial reactivity with platelets following implantation and in subsequent rate and degree of healing.


2010 ◽  
Vol 34 (2) ◽  
pp. 435-442 ◽  
Author(s):  
Alberto C. de Campos Bernardi ◽  
Marisa Bezerra de Mello Monte ◽  
Paulo Renato Perdigão Paiva ◽  
Carlos Guarino Werneck ◽  
Patrick Gesualdi Haim ◽  
...  

Zeolites are hydrated crystalline aluminosilicate minerals of natural occurrence, structured in rigid third dimension net that can be used as slow release plant-nutrient source. The main objective of this study was to evaluate the effects of plant growth substrate under zeolite application, enriched with N, P and K, on dry matter yield and on nutrient contents in consecutive crops of lettuce, tomato, rice, and andropogon grass. The experiment was carried out in a greenhouse, with 3 kg pots with an inert substrate, evaluated in a randomized block design with three replications. Treatments consisted of four types of enrichment of concentrated natural zeolite: concentrated zeolite (Z) only, zeolite + KNO3 (ZNK), zeolite + K2HPO4 (ZPK) and zeolite + H3PO4 + apatite (ZP), and a control grown in substrate fertilized with a zeolite-free nutrient solution. Four levels of enriched zeolite were tested: 20, 40, 80, and 160 g/pot. Four successive crops were grown on the same substrate in each pot: lettuce, tomato, rice, and andropogon grass. Results indicated that N, P and K enriched zeolite was an adequate slow-release nutrient source for plants. The total dry matter production of above-ground biomass of four successive crops followed a descending order: ZP > ZPK > ZNK > Z.


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