scholarly journals Effects of Corm Size, Organic Fertilizers, Fe-EDTA and Zn-EDTA Foliar Application on Nitrogen and Phosphorus Uptake of Saffron (Crocus sativus L.) in a Calcareous Soil under Greenhouse Conditions

2016 ◽  
Vol 8 (4) ◽  
pp. 461-467 ◽  
Author(s):  
Alireza KOOCHEKI ◽  
Seyyed Mohammad SEYYEDI

A greenhouse research experiment was conducted. The experiment was arranged in factorial layout based on a completely randomized design. The mother corm size (0.1-4 g, 4.1-8 g and 8-12 g), organic fertilizers (cattle manure 15 t ha-1, vermicompost 10 t ha-1,chamomilecompost 10 t ha-1 and control) and micronutrients (Fe-EDTA and Zn-EDTA) in two levels (foliar application and no application) were assigned as the first, second and third experimental factors, respectively. Based on the results, with increasing mother corm size, formation of small corms (0.1-4 g) decreased, whereas the percentage of medium (4.1-8 g) or large size (more than 8 g) corms increased. The highest corm yield was observed when cattle manure was applied. Moreover, foliar application increased daughter corm yield in medium and larger size corms. Phosphorus and nitrogen concentration in daughter corms increased with increasing the size of mother corms. Organic fertilizers significantly increased phosphorus and nitrogen concentration in all size of corms: phosphorus content in large daughter corms increased five times on account of cattle manure application. Proper nutrient management during the first year of saffron propagation could improve corm number than rather corm weight.

Author(s):  
F. B. Musa ◽  
O. F. Oyetunji ◽  
R. V. Oyewumi ◽  
D. A. Adenuga ◽  
C. I. Ihediuche ◽  
...  

Background and Objective: The use of organic fertilizers in soil usually upsurge the infection rate of mycorrhizal in a plant, thereby increases the nutrients content, uptake and promotes the vegetative growth of  the host plant. This experiment was conducted to assess the influence of different organic fertilizers and mycorrhizal inoculation on Corchorus olitorius growth and yield in an Alfisol and Inceptisol in Nigeria. Materials and Methods: The experiment was set up at the screenhouse of the Department of Agronomy, Ibadan. 2 x 2 x 5 factorial experiment in a completely randomized design was conducted with two levels of soil (Alfisol and Inceptisol); two levels of mycorrhizal inoculation (with and without) and five levels of organic fertilizers (organic fertilizers; poultry manure, cattle manure, Moringa, Tithonia and control) in two-kilogram soil under three replications. Results: Soil supplemented with organic fertilizers significantly (p < 0.05) influenced the growth and yield of Corchorus olitorius. The height, leaf area and number of leaves of Corchorus olitorius in soil supplemented with organic fertilizers were significantly (p < 0.05) higher than control. Higher leaf area and number of leaves were obtained in C. olitorius influenced by mycorrhizal (+AM) than without mycorrhizal (-AM) under poultry manure application in Alfisol. Inceptisol without fertilizers and mycorrhizal inoculation was also high in the leaf area of C. olitorius compared to Alfisol corresponding treatment with about 31.1%. Number of leaves of C. olitorius without mycorrhizal (-AM) inoculation and Tithonia can be compared with mycorrhizal (+AM) inoculation and cattle manure at 7 weeks after transplanting in both soils. Plants height obtained was highest in C. olitorius grown in Alfisol without mycorrhizal and cattle manure with about 12.2% higher over Inceptisol. Shoots and roots observed under mycorrhizal inoculation were also significantly different from those observed without mycorrhizal inoculation in both soils under different fertilizers application. Conclusion: Integration of different fertilizer types (organic fertilizers and mycorrhizal inoculation) can be efficiently used as a suitable nutrient management system due to positive responses observed in this investigation.


1995 ◽  
Vol 17 (1) ◽  
pp. 86 ◽  
Author(s):  
AJ Ash ◽  
JG Mcivor

Herbage quality (in vitro digestibility, nitrogen and phosphorus concentrations) of plucked samples, and above ground nutrient uptakes (nitrogen and phosphorus) were compared on plots differing in land condition at 10 sites in northern Australia. Over all sites there was a significant increase in digestibility and nitrogen concentration, and a significant decrease in phosphorus concentration, as land condition declined. Both nitrogen and phosphorus uptake decreased as land condition declined. The results indicate that diet quality may be higher from land in poor condition. However, the large decrease in pasture productivity associated with declining land condition may more than offset this apparent improvement in feed quality.


2017 ◽  
Author(s):  
Zainal Muktamar ◽  
Dora Putri ◽  
Nanik Setyowati

Organic fertilizer is capable to decrease the use of synthetic fertilizer due to release of plant nutrients and improvement of other soil properties. The objective of this experiment was to compare the growth and yield of green mustard as affected by cattle manure and litter compost. The experiment was conducted employing Completely Randomized Design with 8 treatments. Treatments included litter compost and cattle manure at rate of 25 Mg ha-1 and 15, 20, 25 Mg ha-1 with addition of 1.85 g nitrogen fertilizer per plant, respectively. Each treatment was replicated 5 times. Soil used in this experiment was Ultisol collected at depth of 0-20 cm. Five kg of soil was mixed with organic fertilizer according to each treatment and placed in 10 kg polybag. Green mustard was planted to each polybag. Nitrogen fertilizer was applied a week after planting. The experiment revealed that application of litter compost and cattle manure at rate 25 Mg ha-1 with additional nitrogen fertilizer resulted in higher green mustard fresh weight per plant and number of leaves. On the other hand, application of both organic fertilizers at rate of 25 Mg ha-1 without addition nitrogen fertilizer as other treatments did not provide significant differences on most variables observed. This indicated that application of organic fertilizer is able to reduce synthetic nitrogen fertilizer for green mustard production.


Energies ◽  
2019 ◽  
Vol 12 (14) ◽  
pp. 2772 ◽  
Author(s):  
Alla Silkina ◽  
Naomi E. Ginnever ◽  
Fleuriane Fernandes ◽  
Claudio Fuentes-Grünewald

Municipal and agricultural waste treatment is one of the key elements of reducing environmental impact with direct effects on the economy and society. Algal technology has been tested to enable effective recycling and valorisation of wastewater nutrients including carbon, nitrogen and phosphorus. An integrated evaluation and optimisation of the sustainability of an algal bio-refinery, including mass and energy balances, carbon, water and nutrient use and impact analysis, was assessed. A bio-refinery approach of waste remediation using algal cultivation was developed at Swansea University, focusing on nutrient recovery via algal biomass exploitation in pilot facilities. Mass cultivation (up to 1.5 m3) was developed with 99% of nitrogen and phosphorus uptake by microalgal cultures. Nannochloropsis oceanica was used as a biological model and grown on three waste sources. The compounds obtained from the biomass were evaluated for animal feed and as a potential source of energy. The bioremediation through algal biotechnology was examined and compared to alternative nutrient recovery passive and active methods in order to know the most efficient way of excess nutrient management. Conclusions emphasise the high potential of algal biotechnology for waste remediation and nutrients recovery, despite the need for further development and scalable applications of this new technology.


2017 ◽  
Author(s):  
Zainal Muktamar ◽  
Nanik Setyowati ◽  
Dora Putri

Status:PostprintOrganic fertilizer is capable to decrease the use of in-organic fertilizer due to release of plant nutrients and improvement of other soil properties. The objective of this experiment was to compare the growth and yield of green mustard as affected by cattle manure and litter compost. The experiment was conducted employing Completely Randomized Design with 8 treatments. Treatments included litter compost and cattle manure at rate of 25 Mg ha-1 and 15, 20, 25 Mg ha-1 with addition of 1.85 g nitrogen per plant, respectively. Each treatment was replicated 5 times. Soil used in this experiment was Ultisol collected at depth of 0-20 cm. Five kg of soil was mixed with organic fertilizer according to each treatment and placed in 10 kg polybag. Green mustard was planted to each polybag. Nitrogen fertilizer was applied a week after planting. The experiment revealed that application of litter compost and cattle compost at rate 25 Mg ha-1 with additional nitrogen fertilizer resulted in higher green mustard fresh weight per plant and number of leaves. On the other hand, application of both organic fertilizers at rate of 25 Mg ha-1 without addition nitrogen fertilizer as other treatments did not provide significant differences on most variables observed. This indicated that use of in-organic fertilizer (nitrogen) was able to be reduced in green mustard cultivation by applying organic fertilizer.


2018 ◽  
Vol 40 (5) ◽  
Author(s):  
Anália Lúcia Vieira Pacheco ◽  
Mateus Francisco Pagliarini ◽  
Gilberto Bernardo de Freitas ◽  
Gerival Vieira

Abstract Yellow passion fruit are highly perishable after harvest. Organic products may have better nutritional quality and better postharvest conservation due to the application of different cultural practices such as organic fertilization and non-use of synthetic pesticides. The objective of this study was to evaluate the effects of organic fertilization on the quality and postharvest conservation of yellow passion fruit. The orchard was installed in a completely randomized design with four replications and four plants on the same row per experimental unit. The treatments were three types of fertilization applied in the orchard: mineral (MIN) recommended for the crop; organic (ORG), equivalent to the recommended potassium fertilization for the crop and 2 × ORG with twice the ORG dose. The organic fertilizer used was partially cured cattle manure. The mineral and organic fertilizers were applied superficially. During the harvest, the fruits were classified according to mass, type A (above 175 g), B (between 125 and 175 g) and C (below 125 g). The experiment was developed in a completely randomized design, in a factorial scheme (fertilization x fruit mass classes), with six replications and 90 fruits per treatment. Fruits of plants fertilized with 2 × ORG showed the same pulp yield (PY) of those that received MIN fertilization. Fruits of class C and fruits from plants fertilized with MIN showed greater weight loss. No difference between fertilization and mass classes was found for soluble solids (SS) and titratable acidity (TA). There was also no effect of fertilization on the SS / AT ratio, pH and vitamin C content, however, class B fruits showed, on average, higher values for these pulp aspects. The dose of ORG fertilizer was not enough to keep the fruit quality in relation to the PY, but the fruits from plants fertilized with ORG and 2 × ORG kept up with better commercial quality for a longer period. The organic fertilizer with cattle manure is an efficient alternative to maintaining postharvest conservation of yellow passion fruit.


1979 ◽  
Vol 30 (4) ◽  
pp. 577 ◽  
Author(s):  
AM Alston

Wheat was grown in reconstructed profiles of a sandy red-brown earth in pots 120 cm deep. Ammonium sulfate (90 mg nitrogen per pot) and/or monocalcium phosphate (75 mg phosphorus per pot) were added to the topsoil. In one experiment, water treatments were introduced when the wheat reached ear emergence to provide (a) dry topsoil and water shortage; (b) dry topsoil but ample water supply in the subsoil; or (c) ample water supply, with both topsoil and subsoil wet. Additional nitrogen (82–164 mg per pot as urea) and/or phosphorus (9–18 mg per pot as phosphoric acid) were added to the plants in foliar sprays after ear emergence. In a second experiment in which water treatment (b) was applied, the dry surface soil was wetted at different stages of plant growth, viz. ear emergence, anthesis or the dough stage. In both experiments the yield and concentration of nitrogen and phosphorus in the wheat were measured at maturity. Total dry matter production was little affected by the water content of the soil after ear emergence, but grain yield was increased relative to that of straw where the topsoil was wet at the dough stage. Application of nitrogen at the time of sowing generally increased the yield of grain and straw, but phosphorus had little effect on yield. Additional foliar application of nitrogen after ear emergence increased grain yield where water stress was low: foliar application of phosphorus increased grain yield only when applied with nitrogen. Nitrogen concentration in the grain was little affected by adding nitrogen to the soil but was increased by late foliar application of nitrogen. Phosphorus concentrations were increased by phosphorus and decreased by nitrogen applications.


Author(s):  
V. T. Sinegovskaya ◽  
E. T. Naumchenko

The article presents the results of comparative evaluation of the efficiency of the long-term application of mineral and organic fertilizers in the crop rotation system. It was found that the application of the mineral fertilizer system increased the value of hydrolytic acidity of the soil from 4,30 to 5,29 mg-eq per 100 g of soil, the indicator of metabolic acidity decreased from 5,2 to 4,9 pH units. By the end of the 11th rotation for both fertilizer systems, the content of mobile phosphorus increased by more than 4 times relative to the initial value, its mobility indicator – by 2,2-3,2 times compared with the control. The use of the organo-mineral system was accompanied by an increase in the content of humus by 0,35 % and a decrease in the C:N ratio from 11,2 to 8,9. The increased productivity of wheat was revealed when applying nitrogen and nitrogen-phosphorus fertilizers against the background of prolonged use of the mineral and organo-mineral fertilizer system. The change in wheat productivity by 56 % depended on the content of mineral nitrogen, mobile phosphorus, humus in the topsoil, and on the phosphate ion mobility. Soybean productivity depended on soil fertility indicators only by 24 %: the relationship between soybean productivity and the mineral forms of nitrogen and phosphorus is weak and direct, between productivity and P2O5 mobility - weak and inverse, with humus - moderate and direct.


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