scholarly journals Iron Chelate and Rhizobactria Changed Growth, Grain Yield, and Physiological Characteristics in Maize

2018 ◽  
Vol 49 (4) ◽  
pp. 245-254
Author(s):  
M. Heidari ◽  
I. Salmanpour ◽  
H. Ghorbani ◽  
H.R. Asghari

Abstract In order to investigate the effect of iron chelate and plant growth promoting rhizobacteria (PGPR) on maize, an experiment was conducted as completely randomized block factorial design with three replicates. The first factor included of bacterial strain: S1= Control (without use of bacteria), S2=Azotobacter chroococcum and S3= Azospirillum brasilens and the second factor included of iron chelate: F1= Control, F2= soil application of Fe chelate, F3= foliar application of Fe chelate, F4= soil application of nano Fe chelate and F5= foliar application of nano Fe chelate. The results showed that the highest grain yield and guaiacol peroxidase (GPX) enzymes activity were obtained at the S3F5 treatment and ascorbate peroxidase (APX) at S1F5 treatment. Except the content of phosphorus in leaves and carotenoid, PGPR had significant effect on biological yield, the content of chlorophyll ‘a’ and ‘b’, yield components (number of seed per row of the ear, number of rows per ear and thousand seed weight) and nutrient elements in both the seeds and leaves. However, iron chelate, increased the yield components, but among the iron chelate treatments, the highest amount of chlorophyll ‘a’ and ‘b’ in leaves and phosphorus in seeds were obtained at F5. These results suggested that foliar application of nano Fe chelate and Azospirillum brasilens could be improvement of maize plant productivity.

Plants ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 733 ◽  
Author(s):  
Khaled A. A. Abdelaal ◽  
Yasser S.A. Mazrou ◽  
Yaser M. Hafez

Silicon is one of the most significant elements in plants under abiotic stress, so we investigated the role of silicon in alleviation of the detrimental effects of salinity at two concentrations (1500 and 3000 ppm sodium chloride) in sweet pepper plants in two seasons (2018 and 2019). Our results indicated that relative water content, concentrations of chlorophyll a and b, nitrogen, phosphorus and potassium contents, number of fruits plant−1, fruit fresh weight plant−1 (g) and fruit yield (ton hectare−1) significantly decreased in salt-stressed sweet pepper plants as compared to control plants. In addition, electrolyte leakage, proline, lipid peroxidation, superoxide (O2−) and hydrogen peroxide (H2O2) levels, soluble sugars, sucrose, and starch content as well as sodium content significantly increased under salinity conditions. Conversely, foliar application of silicon led to improvements in concentrations of chlorophyll a and b and mineral nutrients, water status, and fruit yield of sweet pepper plants. Furthermore, lipid peroxidation, electrolyte leakage, levels of superoxide, and hydrogen peroxide were decreased with silicon treatments.


Author(s):  
Manimala Mahato ◽  
Saikat Biswas ◽  
Dhananjoy Dutta

A field experiment was carried out during summer season of 2018 at Instructional Farm, Jaguli, BCKV, West Bengal to study the effect of integrated nutrient management on growth, yield and economics in hybrid maize. The treatments were T1-100% RDF (150:75:75 kg/ha N, P2O5 and K2O) (control), T2- 75% RDF+ Vermicompost @ 2t/ha, T3-75% RDF+ Yeast Vinasse @ 2t/ha, T4-75% RDF+ Vermicompost @ 2t/ha+ soil application of ZnSO4 @ 25 kg/ha, T5-75% RDF+ Yeast Vinasse @ 2t/ha+ soil application of ZnSO4 @ 25 kg/ha, T6-75% RDF+ Vermicompost @ 2t/ha+ Foliar application of ZnSO4 @ 0.5% and T7-75% RDF+ Yeast Vinasse @ 2t/ha+ Foliar application of ZnSO4 @ 0.5% replicated thrice in RBD. The result of the experiment revealed that application of vermicompost @ 2 t/ha along with 75% RDF and 0.5% foliar application of ZnSO4 (T6) exhibited maximum plant height (250.97 cm), LAI (4.58), dry matter accumulation (1680.38 g/m2), number of grains/cob (402.64), cob length (22.34 cm), grain yield (9.04 t/ha), stover yield (13.50 t/ha), net return (Rs.77112/ha), BCR (2.33) and uptake of N, P2O5 and K2O (200.54, 66.45 and 119.12 kg/ha respectively) over application of 100% RDF. However, T6 was statistically at par with the T4 and T7, which produced 8.94 and 8.75 t/ha grains respectively. Therefore, the study concluded that integrated application of vermicompost @ 2 t/ha along with 75% RDF and 0.5% foliar application of ZnSO4 can be recommended for better grain yield and higher profit of summer maize.


Poljoprivreda ◽  
2021 ◽  
Vol 27 (1) ◽  
pp. 37-43
Author(s):  
Ana Pospišil ◽  
◽  
Milan Pospišil

The aim of this study was to determine the effect of fertilization with organic fertilizers Fertil Supernova and Ilsamin N90 on the yield and yield components of three spelt varieties. The study was conducted on an anthropogenized eutric cambisol at the experimental site of the Faculty of Agriculture in Zagreb during 2015/16, 2016/17, and 2017/18, respectively. The study included three varieties of spelt, Nirvana, Ostro, and Bc Vigor, as well as a topdressing with organic fertilizers and a control (without topdressing). The first topdressing at the beginning of spring vegetation consisted of the application of organic fertilizer Fertil Supernova in the amount of 300 kg ha-1, while the second topdressing at the end of tillering consisted of a foliar application of Ilsamin N90 in the amount of 3 l ha-1. The spelt yield and its yield components were significantly influenced by weather conditions, primarily by the amount and distribution of precipitation. The studied spelt varieties did not significantly differ in the grain yield. In all three research years, the variety Nirvana has achieved the significantly largest number of ears per m2. Topdressing with organic fertilizers had a positive impact on the yield of the hulled spelt grain only in the dry year of 2016/17. Topdressing with organic fertilizers did not have a significant impact on the yield components.


2020 ◽  
Author(s):  
Ashkan Daneshtalab Lahijani ◽  
Amir abbas Mosavi ◽  
Morteza Moballeghi

Abstract Pursuant to micronutrients critical role in the plant nutrition and metabolism, accurate determination of the best term of foliar application as a practical plant nutritional pathway has substantial circumstances in the novel agricultural approaches. In order to properly assess micronutrients liquid fertilizer with commercial name of Rooyesh no and mentioned ingredients (Fe EDTA 0.1%, Zn EDTA 0.05%, B 0.02%, Cu EDTA 0.05%, and Mn EDTA 0.05%) influence on Shiroodi cultivar yield, this investigation implemented in the Iran Rice Research Institution (Amol, Mazandaran) during two consecutive years (2017-2018). This extensive research conducted in the form of RCBD with eight treatments and three independent replications. The treatments were T0 (control), T1 (one foliar application) to T7 (seven foliar applications). The frequent intervals of foliar applications were seven days and the first foliar application done nine days after transplantation. The results revealed that the micronutrients application effect was significant about plant dry weight, grain yield, 1,000 grains yield and harvest index. Also, the interaction of the year and foliar application was significant about seed Zn content, chlorophyll b and 1,000 grains yield. According to statistical data, it can be concluded that T4 with 4257 kg/ha grain yield compare to control yield 3499.1 kg/ha that indicated 20 percentage approximate enhancement about foliar application treatments, four leaf spraying with 2 liters/ 1000 liters of water dosage of micronutrients could affect grain yield and yield components of rice (shiroodi cv.) significantly through increasing the number of tillers/plant, improvement of panicle length and increasing the number of grains/ panicle. The micronutrients supply through leaves is more effective procedure in the field of rice nutrition compare to soil application method due to higher absorption velocity.


Author(s):  
Ejaz Ahmad Khan ◽  
Iqtidar Hussain ◽  
Sheryar . ◽  
Hafiz Bashir Ahmad ◽  
Iqbal Hussain

Although,chickpea isnitrogen fixing crop but water scarcity under rain-fed condition reduces its nodulation process severely and nutrients use efficiency too. An experiment was carried out regarding the combined effect of nipping as well as foliar applied fertilizers on yield and yield components of chickpea under rain-fed conditions. Nipping and foliar application of nutrients significantly improved number of pods plant-1, biological yield (kg ha-1), harvest index (%) and final grain yield (kg ha-1). However, non-significant influence was seen in 1000-grain weight and number of grains pod-1. Foliar application of N PK (20:20:20) @2.5 kg ha-1 × nipping was found to be the best interaction among others which significantly increased number of branches plant-1 (11.30), number of pods plant-1(115.36), plant height(59.48cm) and grain yield(2338.9 kg ha-1) as compared to the control treatment. Nipping along with foliar application of NPKcan be practiced in chickpea for higher profitability.


Author(s):  
Janete Denardi Munareto ◽  
Thomas Newton Martin ◽  
Glauber Monçon Fipke ◽  
Vinícius dos Santos Cunha ◽  
Guilherme Bergeijer da Rosa

Abstract: The objective of this work was to evaluate nitrogen management alternatives using Azospirillum brasilense inoculation in wheat (Triticum aestivum) by seed and foliar applications. Treatments consisted of the inoculation or not of A. brasilense, via seed and leaves, associated with topdressing with 0, 70, and 140 kg ha-1 nitrogen. Three wheat cultivars were tested: BRS Parrudo, TBIO Quartzo, and TBIO Sinuelo. The experimental design was a randomized complete block, with three replicates. The following traits were evaluated: number of emerged plants, tillers, spikelets per ear, grains per ear, and grains per spikelet; 1,000-grain mass; hectoliter mass; and grain yield. The foliar management of A. brasilense showed a better association with the TBIO Sinuelo cultivar. The foliar application of A. brasilense, whether alone or combined with seed treatment, increases the grain yield and yield components of the evaluated cultivars.


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