POTENTIAL IMPACT OF THE IMPLEMENTATION OF THE NEW GREEN DEAL IN THE FIELD OF MINERAL FERTILIZATION ON THE YIELD OF MAIN AGRICULTURAL CROPS

Author(s):  
Mariusz Matyka

The aim of the article is to estimate the impact of reducing the consumption of mineral fertilizers resulting from the New Green Deal assumptions on the yields of major crops in the 2030 perspective. The material for analysis was statistical data from the CSO and FAO. The collected data was processed dynamically by using trend analyzes and Pearson linear correlation. Maintaining the current trend of increasing the dose of NPK mineral fertilization will allow the use of crop production potential in Poland. On the other hand, the introduction of the NGD assumptions may result in a stagnation of crop yield at the current level. However, in relation to the scenario assuming the continuation of the current upward trend, these yields will be much lower. Reducing mineral fertilization introduced by means of an administrative decision without taking the principles of rational management of fertilizer components into consideration may have negative environmental consequences.

2017 ◽  
Vol 63 (No. 3) ◽  
pp. 105-110 ◽  
Author(s):  
Vitale Luca ◽  
Polimeno Franca ◽  
Ottaiano Lucia ◽  
Maglione Giuseppe ◽  
Tedeschi Anna ◽  
...  

Improvements in crop management for a more sustainable agriculture are fundamental to reduce environmental impacts of cropland and to mitigate effects on global climate change. In this study three fertilization types – ammonium nitrate (control); mineral fertilizer added with a nitrification inhibitor (3,4-dimethylpyrazole phosphate (DMPP)), and an organo-mineral fertilizer (OM) – were tested on a tomato crop in order to evaluate effects both on crop production and soil N<sub>2</sub>O emissions. Plants grown under OM fertilization had a greater relative growth rate compared to mineral fertilization, due to a higher net assimilation rate, which was related to a greater light interception rather than to a higher photosynthetic efficiency. OM fertilization determined the highest fruit production and lower soil N<sub>2</sub>O fluxes compared to NH<sub>4</sub>NO<sub>3</sub>, although the lowest soil N<sub>2</sub>O fluxes were found in response to mineral fertilizer added with a nitrification inhibitor. It can be concluded that organo-mineral fertilizer is a better nutrient source compared to mineral fertilizers able to improve crop yield and to mitigate soil N<sub>2</sub>O emission.  


Author(s):  
Luoman Pu ◽  
Shuwen Zhang ◽  
Fei Li ◽  
Ranghu Wang ◽  
Jiuchun Yang ◽  
...  

During the last 40 years, the quantity and spatial patterns of farmland in Western Jilin have changed dramatically, which has had a great impact on soybean production potential. This study used one of the most advanced crop production potential models, the Global Agro-Ecological Zones model, to calculate the soybean production potential in Western Jilin based on meteorological, topography, soil and land use data, and analyzed the impact of farmland change on soybean production potential during 1975–2013. The main conclusions were the following: first, the total soybean production potential in Western Jilin in 2013 was 8.92 million tonnes, and the average soybean production potential was 1612 kg/ha. The production potential of eastern area was higher than the other areas of Western Jilin. Second, farmland change led to a growth of 3.30 million tonnes in soybean production potential between 1975 and 2000, and a decrease of 1.03 million tonnes between 2000 and 2013. Third, taking account of two situations of farmland change, the conversion between dryland and other categories, and the change of irrigation percentage led to the total soybean production potential in Western Jilin increased by 2.31 and only 0.28 million tonnes respectively between 1975 and 2000, and increased by 0.12 and 0.29 million tonnes respectively between 2000 and 2013. In general, the increase of soybean potential production was mainly due to grassland and woodland reclamation. The results of this study would be a good guideline for protecting safe baseline of farmland, managing land resources, and ensuring continuity and stability of soybean supply and food security.


2015 ◽  
Vol 4 (4) ◽  
pp. 66 ◽  
Author(s):  
Maria I. Kokkora ◽  
Chryssoula Papaioannou ◽  
Panagiotis Vyrlas ◽  
Konstantinos Petrotos ◽  
Paschalis Gkoutsidis ◽  
...  

<p>The present study investigates the potential of olive mill wastewater, treated by microfiltration and XAD4 macroporous resin, to be used as liquid fertilizer in maize production through a 2-year field experiment. The treated olive mill wastewater (T-OMWW) was applied at two rates of 25 t and 50 t per ha per year, supplemented with mineral fertilization. There was also a treatment involving the application of only T-OMWW at the rate of 50 t per ha per year, and an only mineral fertilizer treatment. Mineral fertilizers and T-OMWW were applied progressively through a drip irrigation system.</p> Maize grain and soil analysis showed that T-OMWW was capable to meet crop requirements in N, P and K, and increase soil N, P and K availability. There was a tendency for increasing soil Na and electrical conductivity (EC) using the higher rate of T-OMWW. Therefore, for sustainable agriculture, it may be safer to apply the T-OMWW at the lower rate of 25 t per ha<sup> </sup>per year, or use the higher rate of 50 t per ha<sup> </sup>every other year.


2019 ◽  
Vol 48 (1) ◽  
pp. 22-27 ◽  
Author(s):  
Holger Kirchmann

The aim of this article is to provide information about crop production data based on large-scale organic farming and to point toward major consequences. National statistics show lower organic yields than compiled in meta-analyses from farm- and plot-scale. Yields of organically cropped legumes were 20% and nonlegumes 40% lower than those of conventionally grown crops. Area estimates showed that almost two of three crops were legumes or legume mixtures in organic farming, whereas one of three crops was a legume in conventional cropping. Doubling land use for legumes in organic farming affected the type of food produced, being dominated by milk products and red meat. Over all crops, the organic yield gap was 35%. Since yields are lower under organic than conventional practices, more land is required to produce the same amount of agricultural crops. A 35% yield gap means that 50% more arable land is required. A demand for 50% more farmland imposes huge land use changes and makes one realize the wide-ranging environmental consequences that follow when converting to organic farming. In a relevant comparison between organic and conventional cropping systems, environmental consequences caused by land use change such as lost products (timber, fiber, energy, etc.) and lost ecosystem services (sequestered carbon in soil, wildlife, biodiversity, etc.) must be included. The concept of organic farming was founded on philosophical views about nature, not biological science. Natural means and methods were assumed to be superior. Verification of the reasoning and statements of the founders on why to abandon mineral fertilizers cannot be corroborated by science and is incorrect. Scientific evidence for the concept to abandon synthetic mineral fertilizers as nutrients for crops is lacking. The scientific community is obliged to follow rigorous scientific criteria—not biased views, prejudices, or beliefs.


2019 ◽  
Vol 10 (04) ◽  
pp. 1950015
Author(s):  
BORIS O. K. LOKONON ◽  
AKLESSO Y. G. EGBENDEWE ◽  
NAGA COULIBALY ◽  
CALVIN ATEWAMBA

This paper investigates the impact of climate change on agriculture in the Economic Community of West African States (ECOWAS). To that end, a bio-economic model is built and calibrated on 2004 base year dataset and the potential impact is evaluated on land use and crop production under two representative concentration pathways coupled with three socio-economic scenarios. The findings suggest that land use change may depend on crop types and prevailing future conditions. As of crop production, the results show that paddy rice, oilseeds, sugarcane, cocoa, coffee, and sesame production could experience a decline under both moderate and harsh climate conditions in most cases. Also, doubling crop yields by 2050 could overall mitigate the negative impact of moderate climate change. The magnitude and the direction of the impacts may vary in space and time.


2021 ◽  
Vol 45 ◽  
Author(s):  
Teofil Gavrić ◽  
Josip Jurković ◽  
Drena Gadžo ◽  
Lejla Čengić ◽  
Emina Sijahović ◽  
...  

ABSTRACT Basil (Ocimum basilicum L.) is an annual plant that belongs to the Lamiaceae family. It is used as an aromatic and medicinal plant. Basil is grown in different regions with varying climates; the productivity and quality are influenced by both abiotic and biotic factors. This study was aimed to determine the impact of the application of different types of fertilizers on the yield and contents of some bioactive components in basil. The treatments consisted of three different types of fertilizers (mineral, organomineral, and organic) and control (without fertilization). The yield per plant and the essential oil content with fertilizer treatment were better than that in control. The highest fresh yield (450.9 g per plant) and oil content (0.94 mL 100 g-1) were recorded in basil cultivated using mineral fertilizers. Furthermore, the fresh yield (333.9 and 327.8 g per plant) and oil content (0.87 and 0.85 mL 100 g-1) were higher after the application of organic and organomineral fertilizers compared to that in the control treatment. There was no significant effect of fertilizer application on the total phenolics, total flavonoids, and antioxidant capacity. This study demonstrated a suitable practical application of organomineral fertilizers as a nutrient source in basil crop production in areas where the use of mineral and organic fertilizers is limited.


2017 ◽  
Vol 17(32) (2) ◽  
pp. 18-28
Author(s):  
Jerzy Bieńkowski ◽  
Małgorzata Holka ◽  
Janusz Jankowiak

Currently, a major challenge for the agriculture sector is the reduction of greenhouse gas (GHG) emissions in order to mitigate the effects of climate change. There is a need to accurately identify the sources of emissions and to promote agricultural practices that would contribute to the reduction of emissions in all chains of crop production. To carry out objective comparisons and choose the best technological solutions according to an emissivity criterion there is a need for the detail quantitative assessment of GHG emissions. The study shows an assessment of GHG emissions in crop production using the carbon footprint (CF). The share of technological operations in CF formation was characterized based on the example of winter oilseed rape. The results indicate that the process of fertilization is of the greatest importance in the CF development. The impact of other remaining processes on the CF is several times smaller. The main hot-spots in GHG emissions due to mineral fertilization are associated with direct and indirect GHG emissions from the fields. Emissions from the production of fertilizers are the second source of emissions from the fertilization process, following GHG emissions from the fields. Changes in agricultural practices by increasing the efficiency of nitrogen fertilization and the use of fertilizers with low emission factors make it possible to reduce GHG emissions at present, and thereby contribute to the CF reduction of crop products.


Author(s):  
Н.Т. Чеботарёв ◽  
О.В. Броварова

Исследования эффективности минеральных удобрений на фоне последействия извести, внесённой в 1983 году, проводили в 1983–2020 годах на опытных полях Института агробиотехнологий ФИЦ Коми НЦ УрО РАН. Целью исследований было изучение влияния минеральных удобрений на продуктивность и качество бобово-злаковой травосмеси, а также выявление изменений агрохимических показателей почвы под влиянием удобрений и мелиорантов. В результате установлено, что наиболее значительный средний урожай бобово-злаковой травосмеси получен при использовании минеральных удобрений (N60P75K75) на фоне последействия извести (2,0 г.к.). Он составил 6,6 т/га сухого вещества (СВ) и превышал вариант без удобрений на 153,8%. Близкая урожайность трав получена при использовании NPK по фону извести 1,0 г.к. — 6,2 т/га СВ. Установлено, что при использовании удобрений и мелиоранта содержание сухого вещества в травах снижалось на 1–2%. Наибольшее количество сырого протеина было в травах при совместном применении NPK и извести (12,3–13,9%), как и содержание фосфора, калия и кальция (0,91–0,94; 2,82–2,93; 0,77–0,79% соответственно). Наши исследования показали: наиболее оптимальным приёмом воздействия на кислую дерново-подзолистую почву является применение минеральных удобрений (N60P75K75) по фону последействия двух доз извести. К 2010 году содержание гумуса повысилось на 0,4–0,5%, обменная кислотность снизилась на 0,6–0,8 ед. pHKCL, гидролитическая кислотность — на 1,3–1,9 ммоль/100 г почвы, содержание подвижного алюминия — на 1,1–2,2 ммоль/100 г почвы. Значительно повысилось количество подвижного фосфора (156–184 мг/кг почвы) и калия (до 141 мг/кг почвы), в большей степени — при применении NPK по фону последействия извести 2,0 г.к. The effectiveness of mineral fertilizers was tested on the background of lime applied in 1983 at the Institute of Agrobiotechnology from 1983 to 2020. The aim was to analyze the impact of mineral nutrition on productivity and quality of a legume-gramineous mixture as well as on soil chemistry. The mixture showed the best productivity (6.6 t DM ha-1) on the background of N60P75K75 and pH of 2.0. The yield increase amounted to 153.8%. Mineral fertilization under soil pH of 1.0 resulted in 6.2 t DM ha-1. The use of ameliorant decreased DM accumulation by 1–2% under fertilization. Combination of NPK and liming led to the highest content of crude protein (12.3–13.9%) as well as P, K and Ca (0.91–0.94; 2.82–2.93; 0.77–0.79%, respectively). Application of N60P75K75 had the best effect on acid sod-podzolic soil on the background of double liming. By 2010 humus content increased by 0.4–0.5%, pHKCL — by 0.6–0.8 units, hydrolytic soil acidity — by 1.3–1.9 mmol/100 g of soil, soluble Al concentration — by 1.1–2.2 mmol/100 g of soil. Concentrations of soluble P and K grew significantly — 156–184 and up to 141 mg/kg of soil, respectively, mostly due to the NPK application under soil pH of 2.0.


2020 ◽  
Vol 151 ◽  
pp. 15540-15549
Author(s):  
TCHANILEY Larounga ◽  
AYISAH Kwasi Dzola ◽  
DEWA KASSA Kodjo Akonta

Objectif : L’essai a visé à développer de nouvelles initiatives de gestion de la fertilité des sols compatibles avec la gestion rationnelle des ressources mises en jeux afin d’évaluer et d’apprécier l’efficacité des différentes combinaisons d’engrais sur le rendement de la laitue et d’identifier le meilleur model d’amélioration des conditions de culture de cette plante. Méthodologie et résultats : Au cours de l’essai, le dispositif expérimental adopté a été celui en blocs aléatoire complet à quatre traitements et à trois répétitions. Les traitements utilisés ont été : T0 (témoin absolu sans apport de fertilisants), T1 (16 t.ha-1 de fumier de bovin +150 Kg.ha-1 de NPK :15-15-15 +50 Kg.ha-1 d’Urée), T2 (16 t.ha-1 de fiente de volailles + 150 Kg.ha-1 de NPK :15-15-15 +50 Kg.ha-1 d’Urée) et T3 (16 t.ha-1 d’un mélange équitable de fientes de volailles et de fumier de bovin +150 Kg.ha-1 de NPK :15- 15-15 +50 Kg.ha-1 d’Urée). Les résultats obtenus ont montré que le traitement T2 a amélioré le rendement de la laitue qui a dépassé le témoin de 134%. Conclusion et application de résultats : L’étude a consisté à faire une évaluation de l’impact de différentes combinaisons d’engrais organiques et minéraux sur la productivité de la laitue. Les résultats obtenus ont monté que le traitement T2 suivi du traitement T3 puis du traitement T1 ayant donné respectivement un surplus de produit de 134,00%, 75,69% et de 62,16% par rapport au traitement témoin T0. La laitue étant une plante à cycle court, l’utilisation du fumier, à base de fientes de volailles, riche en azote dont la libération est rapide, serait mieux indiquée pour sa culture en plein champ et surtout en maraîchage. Mots clés : laitue, fertilisation, combinaison, rendement Tchaniley et al., J. Appl. Biosci. 2020 Effet de la combinaison des fertilisants organiques et minéraux (NPK 15-15- 15 et urée) sur le rendement de la laitue (Lactuca sativa L.) dans le sud du Togo. 15541 Effect of the combination of organic and mineral fertilizers (NPK 15-15-15 and urea) on the yield of lettuce (Lactuca sativa L.) in southern Togo ABSTRACT Objective: The aim of the trial was to develop new soil fertility management initiatives compatible with the rational management of the resources involved in order to assess and assess the effectiveness of the different combinations of fertilizers on the yield of lettuce and to identify the best model for improving the growing conditions of this plant. Methodology and results: During the test, the experimental device adopted was that in complete random blocks with four treatments and three repetitions. The treatments used were: T0 (absolute control without addition of fertilizers), T1 (16 t.ha-1 of bovine manure +150 Kg.ha-1 of NPK: 15-15-15 +50 Kg.ha-1 of Urea), T2 (16 t.ha-1 of poultry droppings + 150 Kg.ha-1 of NPK: 15-15-15 +50 Kg.ha-1 of Urea) and T3 (16 t.ha -1 of a fair mix of poultry droppings and bovine manure +150 Kg.ha-1 of NPK: 15-15-15 +50 Kg.ha-1 of Urea). The results obtained showed that the T2 treatment improved the yield of the lettuce, which exceeded the control by 134%. Conclusion and application of results: The study consisted of assessing the impact of different combinations of organic and mineral fertilizers on the productivity of lettuce. The results obtained showed that the T2 treatment followed by the T3 treatment then by the T1 treatment having given respectively a surplus of product of 134.00%, 75.69% and 62.16% compared to the control treatment T0. Since lettuce is a short-cycle plant, the use of manure, based on poultry droppings, rich in nitrogen and quick to release, would be better suited for its cultivation in the open field and especially in market gardening. Keywords: lettuce, fertilization, combination, yield


Author(s):  
Martynas KEMESIUS ◽  
Gerda SILINGIENE ◽  
Regina VASINAUSKIENE ◽  
Remigijus ZALKAUSKAS

The usage of biodegradable waste as sewage sludge in a proper way for tree nurseries enable to seek for ecological, waste-less, alternative to mineral fertilization farming ways. The aim of this research is to investigate impact of sewage sludge fertilizers on Norway spruce (Picea abies) two years’ seedlings growth. Research has been done in 2013-2014 at Utena State Forest Enterprise nursery. The different fertilization rates (20, 40, 60, 80, 100 t/ha) of sewage sludge were investigated and compared with control – traditional fertilization with mineral fertilizers. The impact of sewage sludge was evaluated by seedlings biometric indicators, also dry mass of sample seedlings (medium seedlings by height and diameter). The bigger rates of sewage sludge showed almost better results in exception of seeds outlet. Sewage sludge has long lasting effect on seedlings growth and could successfully shift soil fertilization by mineral fertilizers. The obtained research results confirm the similar research carried out in 2011 in Rokiskis State Forest Enterprise nursery for first year Norway Spruce seedlings.


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