Fertigation for minimizing environmental pollution by fertilizers

Hagin, J.; Lowengart, Anat

doi:10.1007/bf00747675

Cited by 45 publications

(23 citation statements)

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“…, (Hagin and Lowengart, 1996;Li et al, 2003;Hartz et al, 2005). (Finn and Warmund, 1996;Vargas and Bryla, 2015), (Bryla and Machado, 2011), (Glonek and Komosa, 2004), (Ehret et al ., 2014), (Bryla et al ., 2008) .…”

mentioning

confidence: 99%

Effect of Nitrogen Fertigation on The Growth and Nutrition Uptake of ‘Brightwell’ Rabbiteye Blueberry

Kwack¹,

Chae²,

Lee³

et al. 2017

Korean Journal of Environmental Agriculture

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BACKGROUND: Rabbiteye blueberry(Vaccinium asheiReade) has low nutrient uptake efficiency due to its shallow and fibrous root system without root hairs. This study was carried out to establish an efficient nutrient application standard by investigating the effect of nitrogen fertigation on the growth and fruit characteristics of rabbiteye blueberry. METHODS AND RESULTS: 'Brightwell' rabbiteye blueberry was treated with 0, 50, 100 and 200% nitrogen fertigation of recommended fertilizer application (6, 9 and 14 g/bush in the first, second and third years, respectively). The results showed that leaf nitrogen content significantly correlated with the fruit weight and fruit yield. However, canopy area, dry weight, sugar and anthocyanin contents did not correlate significantly with the leaf nitrogen content. The leaf and stem dry weights of 'Brightwell' rabbiteye blueberry during the third year of planting were the highest with 50% nitrogen fertigation (leaf dry weight=723.7 g/bush; stem dry weight=890.7 g/bush). Maximum fruit yield of 'Brightwell' rabbiteye blueberry (12.9 kg/bush) was observed during the third year of planting with 50% nitrogen fertigation and this was about 70% greater than the treatment that received no nitrogen fertigation. The fruit yields of 'Brightwell' rabbiteye blueberry during the third year of planting treated with 100 and 200% nitrogen fertigation were 11.0 and 11.5 kg/bush, and these were 17 and 12% lower than the 50% nitrogen fertigation treatment, respectively. Further, the efficiency of nitrogen utilization was the highest (90%) with 50% nitrogen fertigation and lowest (18%) with 200% nitrogen fertigation. CONCLUSION:The results of this study suggests that fertigation with 50% of the recommended fertilizer could be most effective for enhancing the growth and nitrogen use efficiency of rabbiteye blueberry.

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confidence: 99%

Effect of Nitrogen Fertigation on The Growth and Nutrition Uptake of ‘Brightwell’ Rabbiteye Blueberry

Kwack¹,

Chae²,

Lee³

et al. 2017

Korean Journal of Environmental Agriculture

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“…By adopting this approach, readily soluble nutrients can be supplied directly to the root volume thereby maximizing nutrient efficiency and minimizing over fertilization and leakage to underground water with possible damage to the environment. Fertigation is practiced extensively in commercial agriculture and horticulture [2] [8]…”

Section: Fertigation: An Overviewmentioning

confidence: 99%

“…Intensification of agriculture by irrigation and enhanced use of fertilizers may generate pollution by increased levels of nutrients in underground and surface waters [2]. Inorganic fertilizers have been reported as potential sources of pollution which upset the balance of the ecosystem.…”

Section: Introductionmentioning

confidence: 99%

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Fertigation for Environmentally Friendly Fertilizers Application: Constraints and Opportunities for Its Application in Developing Countries

Kabirigi¹,

Prakash²,

Prescella³

et al. 2017

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There is an increasing concern about agriculture's role in polluting the environment which makes farmers feel guilty about using fertilizers. Fertigation is proposed as a panacea to this dilemma, which by this practice reaffirms the principles of 4Rs which are the right source, at the right rate, right time and right place. The aim of this study was to explore constraints and opportunities for its application in developing countries for environmentally friendly fertilizers application. It is a review of literature from government reports, legislature and published material on fertilization and irrigation initiatives of developing countries which include Rwanda, Nepal, Suriname, Zambia, Panama, Tanzania, Sri Lanka and South Sudan in addition to the case presented of China during the "2016 Environmentally Friendly Fertilizer Production, Application and Demonstration from Developing Countries" training course. The study found that in developing countries there is potential to apply fertigation as a way of environmentally friendly fertilizers application as it has been adopted in China. These opportunities include the following: Abundant natural resources like land and water, less polluted environment, conducive agricultural policies, zero duties levied on imported irrigation equipment. 293However, a number of limitations also are highlighted including: Lack of investment, lack of infrastructure, lack of information, requires expertise on plant nutrition and management of fertigation system, require soil analysis and proper interpretation which is done by experts. This study provides relevant information for fertigation planning and application in respective developing countries.

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“…This technology was initially developed in the 1970's in Israel (Goldberg and Shmueli 1971). As nutrients are applied in a watersoluble form, they are immediately accessible for plant uptake right after application, allowing the farmers a greater control over nutrient availability for the crop (Hagin and Lowengart 1995).…”

Section: Studied Eco-innovationsmentioning

confidence: 99%

Eco-innovations in the German fertilizer supply chain: Impact on the carbon footprint of fertilizers

Hasler¹,

Bröring²,

Omta³

et al. 2017

Plant Soil Environ.

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The aim of this paper is to analyse to what extent the existing eco-innovations in the German fertilizer domain might reduce the fertilizer carbon footprint without compromising on crop productivity. The continuously growing demand for agricultural products will require a further increase in agricultural production mostly achieved with additional external inputs (fossil energy, pesticides, irrigation water and fertilizers). Fertilizer in general and nitrogen fertilizers in particular are major factors for yield increases in crop production. On the other hand, emissions of greenhouse gases play a dominant role in the debate on the environmental burden of fertilizers. Typical mineral fertilizers were compared with so-called stabilized nitrogen fertilizers and secondary raw material fertilizers in this study. Additionally, an effect of the combination of irrigation with fertilization (i.e. fertigation) was investigated. With an adopted life cycle assessment approach focusing on CO<sub>2</sub> and N<sub>2</sub>O emission, the carbon footprints of the different fertilizer options were considered. The calculations showed that especially the use of stabilized nitrogen fertilizer reduced the fertilization-related carbon footprint up to 13%. However, because of higher costs or incomplete supply chain relationships, adoption of these innovations is expected to be rather limited in the near future. Fertilizers made from secondary raw materials resulted in similar carbon footprints as mineral ones, but they can help to close nutrient cycles and use by-products of other production processes.

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Fertigation for minimizing environmental pollution by fertilizers

Cited by 45 publications

References 4 publications

Effect of Nitrogen Fertigation on The Growth and Nutrition Uptake of ‘Brightwell’ Rabbiteye Blueberry

Effect of Nitrogen Fertigation on The Growth and Nutrition Uptake of ‘Brightwell’ Rabbiteye Blueberry

Fertigation for Environmentally Friendly Fertilizers Application: Constraints and Opportunities for Its Application in Developing Countries

Eco-innovations in the German fertilizer supply chain: Impact on the carbon footprint of fertilizers

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Fertigation for minimizing environmental pollution by fertilizers

Cited by 45 publications

References 4 publications

Effect of Nitrogen Fertigation on The Growth and Nutrition Uptake of &#8216;Brightwell&#8217; Rabbiteye Blueberry

Effect of Nitrogen Fertigation on The Growth and Nutrition Uptake of &#8216;Brightwell&#8217; Rabbiteye Blueberry

Fertigation for Environmentally Friendly Fertilizers Application: Constraints and Opportunities for Its Application in Developing Countries

Eco-innovations in the German fertilizer supply chain: Impact on the carbon footprint of fertilizers

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Effect of Nitrogen Fertigation on The Growth and Nutrition Uptake of ‘Brightwell’ Rabbiteye Blueberry

Effect of Nitrogen Fertigation on The Growth and Nutrition Uptake of ‘Brightwell’ Rabbiteye Blueberry