Journal      [Total: 356 ]

Enviro-economic impact of cyanobacteria, bacteria, vinasse and pretreated rice straw to secure yield productivity of rice crop in saline soils

Soha Mostafa, Hebba Shehata, Adel . Hussin Awad, Ali Mohamed, 2015


This study focused on formulating bio-organic fertilizers using solid agricultural wastes i.e., rice straw and Agro-industrial effluents i.e. vinasse to prepare liquid extracts and non-chemical additives for growing bacteria and cyanobacteria successfuly to produce biofertilizer for rice crop in saline soils, reduce harmful nitrogenous fertilizers and evaluate the enviro-economic output of this study.This study comprises of two parts The first part: A laboratory experiment for preparing rice straw broth medium (RSBM) using pretreated rice straw and vinasse as low cost organic medium for PGPR bacteria (Bacillus subtilis and Pseudomonas fluorescens), salt tolerant cyanobacteria (Spirulina platensis) and N2-fixing cyanobacteria (Nostoc muscorum and Anabaena oryzae) propagation to be used as bio-organic fertilizers for rice cultivation in saline soils in order to replace about 50% of the recommended dose of chemical N-fertilizers.The second part: The application of the formulated biofertilizer in field experiments during two successive seasons in 2012 and 2013 at Sahl El-hossinia Research Farm Station, El-Sharkia Governorate, (ARC), Egypt. The field expermients were to investigate the potentiality of the formulated biofertilizers (Cyanobacteria, bacteria and RSBM) to components about 50% of the recommended dose of urea on growth, yield and yield components of rice crop under saline soil conditions as well as studying their effects on some biological activities in soil. Results revealed that cyanobacterial counts, total bacterial counts, CO2 evolution as well as dehydrogenase (DHA) and nitrogenase (N2-ase) activities were conspicuously affected by cyanobacteria, bacteria and/or RSBM tretments best results were achieved by the combined treatment.Total phenolic content of rice shoot, rice yeild and its components and NPK uptake were studied. Results indicated that application of Cyanobacteria, bacteria and RSBM significantly increased nitrogen, phosphorus and potassium contents of rice grains and straw Moreover, the composite biofertilizer encompassing Cyanobacteria, bacteria and RSBM showed several benefits over chemical fertilizers and improved fertility of saline soils in. Additionally, using biologically fixed nitrogen as a partial alternative to chemical N-fertilizer could have great potential for limiting CO2 emissions and consequently for mitigating environmental pollution

Effect of sulphur application on soil improvemet and wheat production

seham abdelazim, Seham Mohamed Mostafa, 2015


A field experiment was carried out on winter season 2012/ 2013 with wheat (Bani swif 1) grown on a clayey soil at Sids Agric. Res. Station to study the effect of sulphur (S) application and micronutrients (Mi) i.e. Fe, Zn, Mn and Cu on some properties of soil and available macronutrients in soil as well as the grain and straw yields of wheat and they chemical composition. Sulphur was added at rates of 0, 250, 500 and 1000 kg /fed alone or with afore named micronutrients which sprayed at the rate of 0.1 % Fe in the form of chelated (6%), 0.05 % Zn in the form of chelated (14 %), 0.05 % Mn in the form of chelated (13 %) and CuSO4 at rate of 1 g / L. The experiment was conducted in a randomized complete block design with 4 replicates. The obtained results showed that the values of soil moisture retention (field capacity, wilting point and available water) were increased with increasing sulphur addition. The available contents of NPK in soil were increased with S application alone , and these increases were more pronounced when micronutrients were added. The highest treatment was found to be a mixture of 1000 kg S + Mi. This treatment reflected its positive effect on the grain and straw yields of wheat, where the highest increasing percent in the grain and straw yields of wheat reached 15.02 and 20.80 %, respectively. Data also indicated that addition of S with Mi to the studied clayey soil markedly increased the contents of NPK in wheat grains and straw, particularly at the highest rate of sulphur and Mi. On the other hand, application of S at rate of 500 kg /fed beside sprayed with Mi gave the best treatment for all the previous parameters, because there no big differenc between 1000 kg S /fed + Mi and 500 kg S /fed + Mi or not significant

Raising rock phosphate efficiency for sesame productivity in sandy soil

Samir Abd EL-Aziz, AbdEl-Menam Fathi Ibrahim, seham abdelazim, 2015


A field experiment was conducted at Ismailia Agric. Res. Station, Egypt, during summer season 2013 in order to evaluate organic manure, sulphur and microorganisms {phosphorous solubilizing bacteria (PSB) and sulphur oxidizing bacteria (SOB)} inoculation on enhancing phosphorus availability from rock phosphate (RP) and their effects on growth, yield and yield components of sesame plant. Results showed that single super phosphate resulted in the highest plant growth parameters, yield attributes, seed, biological yield and nutrients uptake by sesame seedlings at 90 days after sowing (DAS) and showed a trend similar to values of relative agronomic efficiency (RAE). Either organic manure (OM) or PSB inoculation with RP had a significant increase on plant growth parameters, nutrients uptake by sesame seedlings at 90 (DAS), as well as yield and yield components. These increases were observed when the combination of organic manure (OM) and phosphorous solubilizing bacteria (PSB) inoculation applied together with RP. These were observed for corresponding values of seed and oil yield related to plants were fertilized by RP along with tri-combination of sulphur, OM and microorganisms (PSB and SOB) giving 500 kg/fed and 225.5 kg/fed, respectively, which was not significantly different from treatment of single super phosphate. Oil percent was not significantly different between the control and other treatments without sulphur. Sulphur treatments resulted in the highest amount of oil yield/fed. Results also showed that the combination of soil amendments and bio-fertilizer can be a favorable method to increase the efficiency of naturally rock phosphate and may be considered as an effective new phosphate fertilizer for crop production

Effectiveness of mineral and organic fertilizers and its impact On fodder beet production, quality, control root rot disease and improving some sandy soil properties

essam abuelela, Saieda Ahmed, 2015


To alleviate the problems of sandy soil, some possible manipulation of soil was evaluated two separate experiments were carried out to achieve the main objective of this research. The first Expriment was a laboratory experiment, using four isolates of Fusarium solani which previously isolated from fodder beet, sugar beet, soybean and guar to estimate the efficiency of compost tea on the linear growth of different isolates of Fusarium solani. Compost tea provided pronounced reduction in mycelial growth of Fusarium solani isolates. Organic and mineral fertilizers,individually or in combination , affected root rot disease incidence. The superior treatment, T2 (75% mineral and 25% organic) recorded the least disease incidence. This treatment not only reduced disease incidence, but also increased crop parameters. The second experiment was a field experiment, being carried out on a sandy soil located at Ismailia Research Station, Ismailia Governorate, Egypt, during two successive winter seasons of 2012/2013 and 2013/2014 ,to study the effect of different levels of mineral and organic fertilizers (alone or in combination) on root rot disease, yield ,quality of Fodder beet. (Beta vulgaris cv.Vorochenger and improving some sandy soil properties . The study included five combinations treatments of organic and inorganic fertilizers, i.e.T1 control ( Recommended dose of N.P.K. 100 % ), T2 ( 75% of N.K.+ 5 m3 fed-1 compost ) ,T3 ( 50% of N.K. + 10 m3 fed-1 compost ),T4 (25%of N.K. +15 m3 fed-1 compost ) and T5 ( 0 % of N.K. + 20 m3 fed-1 compost ). The experimental design was a randomized complete block design with four replicates. Significant differences were recorded among different treatments and T2 treatment gave superiority of growth traits than other treatments of fodder beet plants, i.e. root length, root diameter, shoot length , number of leaves, fresh root , shoot, dry root and shoot, biological yield( fresh and dry). The same treatment was superior in quality characteristics, i.e. crude protein, ash, crude fiber and carbohydrate. Furthermore, the incorporation of both N and K. mineral and organic caused substantial increases of content shoot and root ( % ) from N,P. and K. uptake of fodder beet plants, in both vegetative stages and harvesting time. On the other hand, different application of compost improved the soil properties , where reduced soil pH, ECe., bulk density (Mgm-3), quickly drainable pores and hydraulic conductivity .On the contrary, total porosity(%), available N.P. K. ,fine capillary pores and organic matter content were increased

Influence of different types and rates of organic fertilizers application for improv1ng some properties of salt affected soils and maize productivity

alhoseny elsaied khafagy, essam abuelela, Essam El-Wazery, Abdullah Abdel-Fattah, 2015


Two field experiments were conducted during two successive summer seasons 2012 and 2013 on a clay soil at El-Serw Agricultural Research Station, Agricultural Research Center, Egypt. .The experiments were carried out in a randomized complete blocks design with three replicates to study effect of different types and rates of organic fertilizers which can be applied to improve some properties of salt affected soils and its productivity of maize, i.e. Poultry manure, compost and farmyard manure at the rate of (0-24-48 Mg ha-1). at three different locations in salinity levels. The results showed that the chemical and physical properties of the studied soil were clearly improved due to organic fertilizers addition. The common parameters of salt affected soils i.e., increased hydraulic conductivity (Ks),organic matter( O.M) and grain yield .On the contrary, bulk density, Penetration resistance (P.R.), pH, EC, and ESP values were decreased. . The superior improvement of these parameters was resulted from T6, T5 andT4. The amendments can be arranged, ascending as follows: T0

Influence of mineral and organic nitrogen fertilizers on growth and yield of some wheat varieties and some soil properties - North Delta

essam abuelela, Seham Mohamed Mostafa, alhoseny elsaied khafagy, Ibrahim Mohamed, 2015


Two field experiments were conducted at the Experimental Research Station in El-Serw, Agricultural Research Center during the seasons 2012/2013 and 2013/2014 to study the effect of mineral nitrogen and organic nitrogen of compost combination treatments on grain and straw yield and N, P, K- uptake in grain and straw of some wheat varieties. The experiments were carried out in a split plot design with three replicates. Main plots were assigned to three wheat cultivars i.e., Sakha 93, Gemmiza 9 and Gemmiza 10. The sub main plots were devoted to mineral nitrogen and compost combination treatments as follows: 100 % inorganic nitrogen (90 kg fed-1), 75 % inorganic nitrogen (67.5 kg fed-1 ) + 25 % organic nitrogen (22.5 kg fed-1), 50 % inorganic nitrogen (45.0 kg fed-1 ) + 50 % organic nitrogen (45.0 kg fed-1 ), 25 % inorganic nitrogen (22.5 kg fed-1 ) + 75 % organic nitrogen (67.5 kg fed-1) and 100 % organic nitrogen (90 kg fed-1). Obtained results showed that the greatest values of wheat grain , straw yields , N, P and K uptake in both grain and straw were those of Gemmeza 10, Gemmeza 9 and Sakha 93, respectively and 100 % inorganic nitrogen, 75 % inorganic nitrogen + 25 % organic nitrogen, 50 % inorganic nitrogen + 50 % organic nitrogen, 25 % inorganic nitrogen + 75 % organic nitrogen and 100 % organic nitrogen, respectively. 100% inorganic nitrogen for Gemmiza 10 gave the highest wheat grain and straw yields and N, P, and K uptake in grain and straw. While, applying 75% inorganic nitrogen with 25% organic nitrogen produced economic wheat grain and straw yields for Sakha 93 only. So, 25% inorganic nitrogen, could be saved, and environmental pollution with mineral- N fertilizers could also be reduced. As well as improved soil properties i.e increased hydraulic conductivity,on the contrary,bulk density,Ece and pH values were decreased

Enhancing sugar pea productivity and phosphorus solubility by using different bio-fertilizers in sandy soil.

Ebtsam Morsy, 2015


Two field experiments were carried out during two successive winter seasons of 2011/2012 and 2012/2013 at the Experimental Farm, El Kassasein Research Station, Ismailia Governorate, to clarify the effects of partial substitution of chemical phosphorus fertilizer by the inoculation with mixed genera of Arbuscular mycorrhizal fungi (AMF) and Bacillus megaterium bacteria on growth, yield and pod quality of sugar pea plants (Pisum sativum var. macrocarpon) cv. Giant sugar grown under sandy soil conditions using drip irrigation system. Results show that there were significant increases in vegetative growth characters, yield and it's components as well as some chemical constituents of pods as a result of increasing mineral phosphorus fertilizer level from 25% up to 100% of the recommended dose. Inoculation of sugar pea seeds with AMF + B. megaterium recorded the maximum values of vegetative growth characters, yield and it's components as well as chemical constituents of pods compared to the individual treatment from AMF or B. megaterium. The interaction treatment between mineral phosphorus fertilizer at 100% of recommended dose plus dual inoculation of seeds with AMF and B. megaterium gave the highest values of vegetative growth characters, yield and it's components as well as chemical constituents of pods followed by the interaction between mineral phosphorus at 75% of the recommended dose plus dual inoculation of AMF and Bacillus megaterium without significant differences between them in most cases. The highest values of nitrogenase, dehydrogenase enzyme activities, number of nodules and total count of B. megaterium colony were recorded with AMF + B. megaterium + 50 or 75% phosphorus after 80 days from sowing in both seasons. While, the highest significant effect of AMF colonization was recorded when combined with the dual treatment plus 25% phosphorus level

Effect of depth and level of anhydrous ammonia injection on productivity of cotton (gossypium barbadense l.) And soil properties

Ahmad Abdel-Hafez, 2015


The experiment was carried out to evaluate the influence of depth and nitrogen level of anhydrous ammonia injection on growth, yield and its components and chemical contents of leaves of cotton plants as well as some soil properties. Two field experiments under conditions of Middle Egypt, were performed in Sids, Beni Swif Governorate, Experimental Field using two depth of anhydrous ammonia, i.e. 15 and 30 cm under three nitrogen level (30, 60 and 75 kg fed). The results show that, as increasing the depth of applicatoin from 15 to 30 cm, plant height, number of fruiting branches/plant, number of open bolls/plant, boll weight, lint percentage and seed cotton yield were significantly increased. Also, leaf contents of nutrient (N, P and K) and pigments (chlorophyll A and chlorophyll B and Carotenoids) and the soil available nitrogen after harvest were increased. While, earliness percentage and pH values after harvest were decreased. Seed index, fiber properties, namely, Micronaire reading and Pressly index and the availability of phosphorus and potassium did not affect by appliction depth. Increasing nitrogen level were significanlty increased plant height, number of fruiting branches, boll weight, nutrient, and pigment contents in cotton leaves and nitrogen availability. While, nitrogen level had a negative effect on earliness percentage and soil reaction. Increasing nitrogen level to 60 kg/fed produced highest values of number of open bools/plant, lint percentage and seed cotton yield and then these parameters decreased as further increasing of nitrogen level to 75 kg/fed. Nitrogen level did not influence seed index, fiber properties and the availability of phosphorus and potassium

Response of soybean (glycine max l.) To microbial inoculation under chemical fertilization : 1- nodulation, yield and its components

Safwat Esmiel, Ahmad Abdel-Hafez, Osama Galal, 2014


Two field experiments were conducted at Sids Agricultural Research Farm , A.R.C. Beni Swif Governorate to study the effect of Rhizobium or in combined bio-fertilizer (Biogen) inoculation or without inoculation under N , P and Mo application on nodulation , i.e. number of nodules/plant and dry weight on nodules /plant ; yield components (number of pods/plant , number of seeds/pod and 100-seed weight) and grain and straw yields of soybean crop . Factorial experiment (four factors) were used with randomize complete block design with four replications . The factors were : bacterial inoculation (without inoculation , Rhizobium inoculation only and Rhizobium + bio-fertilizer (Biogen) inoculation) , nitrogen application (30 and 60 kg N/fed) , phosphorus application (0.0 and 13.1 kg P/fed) and molybdenum application (0 and 5 kg molybdate sodium /fed) . The results show that , with respect to the main effect , number of nodules /plant and dry weight of nodules/plant , number of pods/plant , 100-seed weight and grain and straw yields were positively responded to microbial inoculation , nitrogen application up to 60 kg/fed and phosphorus and molybdenum application , except the dry weight of nodules/plant , which negatively responded to increasing nitrogen level and did not affected by molybdenum application . The dual inoculation with Rhizobium combined with bio-fertilizer surpassed the single inoculation Rhizobium only . However number of seeds/pod not affected by the studied factors . But the interaction between the studied factors in consideration , the statistical analysis show that the high level of nitrogen had a antagonistic action of the promotive effect of bacterial inoculation or molybdenum on nodulation and yield and its yield components of soybean . On the other hand added phosphorus had a synergistic effect on enhancing the effect of bacterial inoculation or molybdenum on the studied parameters . In general , the highest values of number of nodules/ plant , number of pods/plant , 100-seed weight and grain and straw yields were produced under dual inoculation + 30 kg N/fed + 13.1 kg P/fed + 5 kg molybdate sodium/fed

Fertilizing cotton with calcium superphosphte combined with rock phosphate and its effect on cotton productivity and soil fertility

Ahmad Abdel-Hafez, 2014


Two field experiments were conducted at Sids Agricultural Research Station, Beni Swif Governorate, Egypt in 2012 and 2013 seasons to study the effect of two phosphorus sources namely calcium superphorphate (CaP) and rock phosphate (RP) on cotton growth (plant height and number of fruiting branches/plant), yield components (number of open bolls plant, boll weight and seed index), earliness and lint percentage, seed cotton yield, fiber properties (micronaire reading and pressly index) and some chemical contents of cotton leaves (N, P and K percentage , chlorophell (A and B) and carotenoids contents) as well as the availability of N, P and K in soil. The treatments were: control (without P application), 10 kg P as CaP, 20 kg P as CaP, 150 kg RP, 300 kg RP, 10 kg P as CaP + 150 kg RP, 20 kg P as CaP + 150 kg RP, 10 kg P as Ca P + 300 kg RP and 20 kg P as CaP + 300 kg RP/fed. The results show that treatment of 10 Ca P + 300 kg RP/fed, recorded the highest values of plant height, number of fruiting branches/plant, number of open boll, boll weight, earlines percentege and seed cotton yield as well as N, P concentration, chlorophell A and chlorophell B and carotonoids in cotton leaves, which on par with those obtained by 20 kg CaP alone or in combined with 150 or 300 kg RP/fed. On the other hand seed index, lint percentage, fiber properties and K concentration in cotton leaves. The availability N and K in soil after harvest did not affect by phosphorus treatments. Moreover, phosphorus availiability in soil affected only by rock phosphate application, where 300 kg RP/fed recorded the highest values. This results means that, it could be save about 10 kg calcium superphosphate by using rock phosphate without any drop of cotton productivity