Role of gypsum and sulphur application in ameliorating saline soil and enhancing rice productivity

2013 ◽  
Vol 61 (4) ◽  
pp. 303-316 ◽  
Author(s):  
K. Shaban ◽  
A. Helmy ◽  
M. El-Galad

The main objective of this work was to study the importance of applying gypsum and sulphur to the soil to inhibit the hazardous effects of soil salinity stress on the vegetative growth and yield quantity and quality of rice plants (Oriza sativa L., cv. Sakha 101) grown on a salt-affected soil irrigated with low quality water from the El-Salam (El-Shikh Zaid) Canal. Two field experiments were carried out during two successive seasons (2011, 2012) at Sahl El-Tina plain, village 4, Gilbana town. Gypsum was applied at a rate of 10.7 Mg ha−1)1 while sulphur was added in two forms, as elemental sulphur at a rate of 4.8 Mg ha−1) or as sulphuric acid at a rate of 1190 L ha−1. The results could be summarized as follows: The highest values of rice yield and its attributes as well as nutrient content and uptake were obtained after treatment with sulphuric acid. The treatment effects decreased in the order: sulphuric acid > sulphur > gypsum > control. The highest proline content (21.3 μmol g−1) was recorded after the gypsum treatment.

2020 ◽  
Vol 3 (1) ◽  
pp. 31-34
Author(s):  
M. Yasmin ◽  
M.S. Rahman ◽  
M.A. Rahman ◽  
F.S. Shikha ◽  
M.K. Alam

The experiment was conducted at Regional Agricultural Research Station (RARS), Jamalpur, Bangladesh during the period of 2019-2020 and 2020-2021 to investigate the effect of vermiwash on growth, yield and quality of brinjal and to find out suitable foliar dose of vermiwash for optimizing the yield of brinjal. There were five treatments comprising T1= Chemical fertilizer (CF) + foliar spray of distilled water (control), T2 = CF + foliar spray of 10% vermiwash, T3 = CF + foliar spray of 20% vermiwash, T4 = CF + foliar spray of 30% vermiwash and T5= CF + foliar spray of 40% vermiwash. Results revealed that, vermiwash treated brinjal plants showed better growth and yield parameters than the control plants. The highest average brinjal fruit yield (29.99 t ha-1) was found in T3 treatment i.e., foliar spray of 20% concentration of vermiwash and the lowest (26.35 t ha-1) came from control. On the other hand, nutritional quality (moisture content, TSS, β carotene and nutrient content) were seen to be higher in vermiwash treated treatment compared to control treatment. The study suggests that, 20% concentration of vermiwash could be used as effective foliar spray for eco-friendly and higher yield of brinjal.


Weed Science ◽  
2005 ◽  
Vol 53 (5) ◽  
pp. 683-689 ◽  
Author(s):  
Leopoldo E. Estorninos ◽  
David R. Gealy ◽  
Edward E. Gbur ◽  
Ronald E. Talbert ◽  
Marilyn R. McClelland

Red rice, which grows taller and produces more tillers than domestic rice and shatters most of its seeds early, is a major weed in many rice-growing areas of the world. Field experiments were conducted at Stuttgart, AR in 1997 and 1998 to evaluate the growth response of the Kaybonnet (KBNT) rice cultivar to various population densities of three red rice ecotypes. The ecotypes tested were Louisiana3 (LA3), Stuttgart strawhull (Stgstraw), and Katy red rice (KatyRR). Compared with KBNT alone, LA3, the tallest of the three red rice ecotypes, reduced tiller density of KBNT 51%, aboveground biomass at 91 d after emergence (DAE) 35%, and yield 80%. Stgstraw, a medium-height red rice, reduced KBNT tiller density 49%, aboveground biomass 26%, and yield 61%. KatyRR, the shortest red rice, reduced KBNT tiller density 30%, aboveground biomass 16%, and yield 21%. Tiller density of rice was reduced by 20 to 48% when red rice density increased from 25 to 51 plants m−2. Rice biomass at 91 DAE was reduced by 9 and 44% when red rice densities were 16 and 51 plants m−2. Rice yield was reduced by 60 and 70% at red rice densities of 25 and 51 plants m−2, respectively. These results demonstrate that low populations of red rice can greatly reduce rice growth and yield and that short-statured red rice types may affect rice growth less than taller ecotypes.


2017 ◽  
Vol 16 (7) ◽  
pp. 538-543 ◽  
Author(s):  
Mirnawati . ◽  
Ade Djulardi ◽  
Gita Ciptaan

2019 ◽  
Vol 65 (1) ◽  
pp. 16-29 ◽  
Author(s):  
Abdel Wahab M. Mahmoud ◽  
Suzy M. Abdelaziz ◽  
Mohamed M. El-Mogy ◽  
Emad Abdelhameed Abdeldaym

Abstract In order to assess the effects of green synthesized nanoparticles (GNPs) of Zn and Fe oxides on plant growth traits, photosynthetic capacity and nutritional quality of red radish (cv. Champion), two open field experiments were organised based on RCBD with four replicates. Treatments included: chicken manure, foliar application of ZnO + FeO (GNPs at a rate of 60 and 50 ppm, respectively), chicken manure plus ZnO + FeO (GNPs). This study revealed that growth and yield of radish plants significantly increased by ZnO + FeO nanoparticles application. The maximum vegetative growth, leaf pigments and root quality (diameter and weight) were recorded in plants treated with ZnO + FeO (GNPs) alone or in combination with chicken manure. Furthermore, the combined application of chicken manure with ZnO and FeO significantly improved the concentration of anthocyanins, phenols, tannins, flavonoids, crude protein and carbohydrates contents in radish root than single treatment. Similar trends were noted in photosynthesis rate, water use efficiency and values of Zn and Fe contents. In addition, health risk index for Zn and Fe were less than 1, which indicated to red radish plants supplied with ZnO and FeO GNPs were free of risks on human health. It was concluded that combination between chicken manure and ZnO + FeO GNPs can be considered as appropriate strategy for improving yield and nutritional status of red radish.


2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Elham Abd Elmoneim Badr ◽  
Mervat Shamoon Sadak ◽  
Gehan Shaker Bakhoum ◽  
Howida Hassan Ahmed Khedr

Abstract Background Antioxidants or vitamins are organic compounds that are needed in tiny quantities and have stimulatory role on growth and productivity of different plants. Two field experiments were conducted in two summer seasons to investigate the role of two irrigation systems (spraying and dripping) and α-tocopherol foliar treatment with different concentrations (0, 100 and 200 mg/L) on some growth indices and physiological aspects, yield and its components of sweet corn plants. Results The results show that dripping irrigation system was more effective than Sprinkler system on increasing the studied growth indices and biochemical attributes as well as yield quantity and quality. The results also show the enhancing effect of different α-tocopherol treatments on growth indices, and yield quantity and quality of the sweet corn varieties via enhancing photosynthetic pigments, indole acetic acid, phenolics, carbohydrates constituents, free amino acids and proline contents. Moreover, the interaction between the two irrigation systems and different concentrations α-tocopherol showed that, dripping irrigation with 200 mg/L α-tocopherol was the most effective treatment on increasing growth, yield and yield components of sweet corn plants. Conclusion It could be concluded that dripping irrigation system was more effective than Sprinkler system on increasing the studied growth indices and physiological aspects, yield and its constituents. Moreover, treatment of maize plant with α-tocopherol could improve the studied growth indices, physiological aspects and consequently yield.


2021 ◽  
Vol 11 (18) ◽  
pp. 8309
Author(s):  
András J. Tóth ◽  
Anna Dunay ◽  
Márton Battay ◽  
Csaba Bálint Illés ◽  
András Bittsánszky ◽  
...  

Plant-based meat analogues (i.e., plant-based meat alternatives or substitutes, or vegan meats) are becoming more and more popular. The quality of the available products is constantly increasing therefore their consumption is also increasing. The primary role of meat analogues is to replace the meat component in meals while appropriate nutrient content and hedonic value will be provided as well. The food safety aspects of these newly emerging food products are less investigated. The aim of this study is to compare the microbial spoilage of identical meals prepared with meat and meat analogues to evaluate the food safety risk of meat analogues. In this work, raw protein materials were tested. Moreover, three pairs of meals prepared with or without meat were microbiologically examined during a storage experiment. Microbial contaminants were low in raw protein sources. In the case of hot meals, the microbial proliferation was faster in samples containing meat analogue, especially if the meals were not cooled. The food safety risk of meals prepared with meat analogues is slightly higher than their meat-containing counterparts, therefore more attention needs to be paid to the preparation, processing, and storage of these foods.


2015 ◽  
Vol 29 (3) ◽  
pp. 377-389 ◽  
Author(s):  
Stanisław Pietruszewski ◽  
Elvira Martínez

AbstractThe effect of magnetic field on the growth and yield of crop plants is presented based on 80 references on the studies of many authors. The introduction gives an outline of the history of the effect of magnetic field on biological organisms including plants since the second half of the 19th century. Then the role of static and alternating magnetic fields is discussed in relation to seed germination, root and stem growth, yield, protein and chlorophyll content, rhizosphere community.


2019 ◽  
Vol 113 (2) ◽  
pp. 307
Author(s):  
Mina ABDOLAHI ◽  
Saeideh MALEKI FARAHANI

<p>This study investigated the effect of drought stress on the yield, water use efficiency (WUE), physiology, and seed quality of two species Lallemantia sp. Field experiments with three irrigation regimes were carried out in a split plot factorial in a randomized complete block design with three replications. Treatments included irrigation after 40 %, 60 %, and 100 % depletion of available soil water (ASW) (I40, I60, and I100, respectively) as main plots and Lallemantia species L. iberica (M. Bieb.) Fisch. &amp; C. A. Mey. (S1) and L. royleana Benth. in Wall (S2) as subplots. Increment in depletion of ASW (I40 to I100) resulted in progressively less chlorophyll a content (Chl­ a), open stomata percentage (OS), and leaf area index (LAI). The highest Chl­ a and LAI were found to be 0.0087­ mg g−1, and 2.68 mg g−1 leaf mass in I40 treatment, respectively, while closed stomata percentage (CS) increased significantly as drought stress increased. The results of this experiment indicated that the appropriate yield of production was obtained in plots which were fully irrigated (I40) for all species of Lallemantia; however, the WUE increased as drought stress increased. The interaction of drought stress, Lallemantia species with grain yield and WUE was significant.</p>


2014 ◽  
Vol 32 (2) ◽  
pp. 401-407 ◽  
Author(s):  
L.P. Albrecht ◽  
A.J.P. Albrecht ◽  
A.L. Braccini ◽  
R.S. Oliveira Jr. ◽  
L.H.S. Zobiole ◽  
...  

This study aimed to evaluate the production components and quality of RR soybean seeds (Roundup Ready®), after application of increasing rates of gliphosate. Field experiments were conducted in Mandaguari, Paraná, during two seasons. Treatments consisted of five doses of glyphosate. All applications were performed once, between development stages V4 and V5. The experiment was arranged in a completely randomized block design, with four replicates. Data were subjected to analysis of variance, and when significant, t-tests and a regression analysis were applied to verify the behavior of the treatments. The physiological and sanitary quality, yield and mass of one thousand seeds were evaluated. The results indicated that seed quality can be adversely affected by glyphosate, and also showed a probable reduction in yield components with increasing rates of application.


2015 ◽  
Vol 6 (1) ◽  
pp. 159-162
Author(s):  
MG Azam ◽  
M Islam ◽  
MA Gulandaz ◽  
JA Mahmud

The field experiments were conducted for one season rabi 2008-09 at the Multilocation testing site Magura on calcareous soil to study the effect of integrated nutrient management on the growth and yield of onion (cv. BARI piaj 2). The experiment was laid out in a RCB design. There were five treatments involving four inorganic levels and organic levels another absolute control (no manure and no NPK). Higher level of inorganic T1 i.e., (120-45-85-40 kg ha-1 NPK S+ 5 t/ha CD) produced significantly higher bulb yield (18.76 t/ha) which was on par with T4 (17.87 t/ha) i.e., 5 t/ha poultry manure + remaining amount from inorganic fertilizer T2. The results also indicated that the same treatments recorded the highest single bulb weight, bulb yield as well as gross returns and MBCR (7.14) as compared to other treatments.DOI: http://dx.doi.org/10.3329/jesnr.v6i1.22059 J. Environ. Sci. & Natural Resources, 6(1): 159-162 2013


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