scholarly journals Organic Fertilization and Tree Orchards

Agriculture ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 692
Author(s):  
Theocharis Chatzistathis ◽  
Victor Kavvadias ◽  
Thomas Sotiropoulos ◽  
Ioannis E. Papadakis

Organic fertilization has been proposed as an alternative approach to supply nutrients for crops, in the frame of organic and sustainable agriculture, with the aim to decrease high inorganic fertilization rates, protect the environment and decrease production costs for farmers. Since different types of organic fertilizers, such as manures, olive mill wastewater (OMW), sewage sludge (SS), crushed pruning wastes, composts and cover crops, exist as soil amendments to improve soil fertility, enhance plant nutrition and sustain the productivity of tree crops, their role as biofertilizers has been fully analyzed under the most important published papers. In addition, the benefits and drawbacks of organic fertilization, in a comparative approach with inorganic fertilization, are presented and discussed. Within the most important advantages of organic fertilizers, the enhancement of beneficial soil microorganisms and the improvement in soil physical properties and fertility should be included, while their most important disadvantage is their inability to directly satisfy the prompt N nutritional needs of tree crops, due to slow N mineralization rates. Finally, some novel aspects on the interrelation among innovative organic fertilizers for tree crops, sustainable field management, crop productivity and fruit quality are also included in this review, under the light of the most important and recent research data existing in the literature, with the aim to provide recommendations and future directions for organic fertilizers by tree growers.

Author(s):  
В.А. Петрук ◽  
А.О. Вотяков

В статье представлены результаты изучения экономической и энергетической эффективности возделывания многолетних трав сенокосного и пастбищного использования. С 2007 по 2012 год проведено изучение продуктивности и экономической эффективности возделывания многолетних трав сенокосного использования в лесостепной зоне, коренное улучшение естественных кормовых угодий с 2011 по 2016 год — в южной лесостепи Западной Сибири. Продуктивность и рентабельность производства многолетних трав сенокосного использования с применением минеральных удобрений в лесостепной зоне наиболее высокими были у люцерны и составили 3,2 т/га корм. ед. и 190% соответственно при затратах 8,8 тыс. руб./га. Выход энергии — 43 ГДж/га, энергетический коэффициент (отношение величины выхода продукции к затраченной энергии) — 8,1. Коренное улучшение лугов с применением минеральных удобрений обеспечило получение 0,8 т/га корм. ед. при затратах 4,1 тыс. руб./га, рентабельность составила 56%. Продуктивность естественных угодий при коренном улучшении с использованием органических удобрений — 0,9 т/га корм. ед., рентабельность — 278% при затратах 1,9 тыс. руб./га. Выход энергии с использованием минеральных удобрений — 9,1 ГДж/га, энергетический коэффициент — 1,9, на фоне органических удобрений — соответственно 10,2 ГДж/га и 3,4. Внесение органических удобрений один раз в 5 лет способствовало существенному снижению затрат при коренном улучшении лугов и значительному повышению рентабельности производства. На основании полученных результатов можно заключить: рентабельность производства многолетних трав достаточно высокая, особенно при использовании органических удобрений. Поэтому в хозяйствах с экстенсивными технологиями многолетние травы должны составлять основу кормопроизводства. This article reports on economic and energy efficiencies of perennial grasses cultivated in pastures and haylands. Experiments on hay production took place in the forest-steppe in 2007–2012. Optimization of natural forage lands was conducted in 2011–2016. Alfalfa had the highest hay productivity and economic efficiency under mineral nutrition yielding 3.2 t ha-1 of feed units. Payback amounted to 190%, production costs — 8.8 thousand rubles ha-1. Energy yield reached 43 GJ ha-1, energy coefficient (yield-to-energy ratio) — 8.1. Mineral fertilizers led to the yield of feed units of 0.8 t ha-1, costs of 4.1 thousand rubles ha-1, and profitability of 56%. Under organic fertilization natural forage lands produced 0.9 t ha-1 of feed units, profitability reached 278% while costs — 1.9 thousand rubles ha-1. On the background of mineral nutrition energy yield amounted to 9.1 GJ ha-1, energy coefficient — 1.9, on the background of organic nutrition — 10.2 GJ ha-1 and 3.4, respectively. Organic fertilization once in 5 years significantly reduced costs and increased profitability. Production of perennial crops resulted in high payback, particularly under the application of organic fertilizers. Therefore, farms applying extensive cultivation practices should widely grow perennial grasses.


2019 ◽  
Vol 40 (5Supl1) ◽  
pp. 2151
Author(s):  
Inácio Mucutai Jala ◽  
Caeline Castor da Silva ◽  
Juraci Souza Sampaio Filho ◽  
Eder Jorge Oliveira ◽  
Rafaela Simão Abrahão Nóbrega

In Brazil, there is already a recommendation for the production of cassava seed-cuttings for the production of seedlings originated from micropropagation, which may be extended for the production of seedlings obtained from cuttings from healthy plant stems, in order to avoid the spread of diseases. Therefore, it is essential to establish adequate cultivation substrates of easy acquisition which may stimulate the growth of seedlings, both to reduce the nursery period, as well as the seedling’s production costs. The objective of this work was to evaluate the effect of organic fertilizers made from bovine and goat manures, and tree pruning residues, to produce seedlings of three cassava varieties. The plots were set in a completely randomized design, with six replicates. The treatments consisted of three cassava genotypes (BRS Formosa, BRS Tapioqueira and BRS Kiriris) and five proportions of organic fertilizer: soil (0: 100, 20:80, 40:60, 60:40 and 80:20). The evaluations were performed 30 and 45 days after planting (DAP). There were isolated effects for shoot dry mass, total dry mass, leaf area and number of leaves. Interactions were verified for root length, chlorophyll a and total chlorophyll index, root dry mass and shoot dry mas/root dry mass ratio 45 DAP. The organic fertilizer stimulated the initial growth of cassava seedlings in the three varieties studied in the proportion of 50% of organic fertilizer and 50% of Latosol. Varieties BRS Formosa and BRS Kiriris showed the highest Dickson Quality Scores. Genotypes reacted efficiently to organic fertilization and can be propagated on these easily acquisition cultivation substrates.


2018 ◽  
Vol 5 (2) ◽  
pp. 37-51 ◽  
Author(s):  
O. Demydenko ◽  
Yu. Zapasna ◽  
V. Velychko

Aim. To substantiate the agroecological estimation of the performance of a short crop rotation in conditions of intense and organic system of fertilization on the basis of restoring normative parameters of emission and se- questration of С-СО 2 circulation while using by-products as organic fertilizers in conditions of modern climatic system of the Forest-Steppe of Ukraine. Methods. Field, statistical, laboratory. Results of Investigations. The performance of short crop rotations is determined by the capacity of С-СО 2 balance. Strong inverse correla- tion was found between the capacity of N and the ratio between C and N in the agrocenosis, which demon- strated that enhancing the humifi cation processes (ratio constriction) led to the increase in the capacity of С org balance and the decrease in the capacity level of С-СО 2 balance (enhancing mineralization), related to the reduction in the performance of crops in the agrocenosis of a crop rotation compared to the organic system of fertilization. The capacity of С-СО 2 and С org balance correlates at the medium level of inverse direction, and the yield of the main products, feed units and digestible protein correlates at the level of strong direct correlation. Conclusions. General mineralization of by-products and humus in the agrocenosis and humifi cation processes are antagonists, so extending the ratio between С and N at the intense fertilization system stimulates the in- crease in performance and reducing С to N similar to the organic fertilization system enhances the humifi cation process due to binding of С org into humus and limits mineralization which leads to the reduction in agrocenosis performance at the organic fertilization system.


Agriculture ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 575
Author(s):  
Shangyi Lou ◽  
Jin He ◽  
Hongwen Li ◽  
Qingjie Wang ◽  
Caiyun Lu ◽  
...  

Subsoiling has been acknowledged worldwide to break compacted hardpan, improve soil permeability and water storage capacity, and promote topsoil deepening and root growth. However, there exist certain factors which limit the wide in-field application of subsoiling machines. Of these factors, the main two are poor subsoiling quality and high energy consumption, especially the undesired tillage depth obtained in the field with cover crops. Based on the analysis of global adoption and benefits of subsoiling technology, and application status of subsoiling machines, this article reviewed the research methods, technical characteristics, and developing trends in five key aspects, including subsoiling shovel design, anti-drag technologies, technologies of tillage depth detection and control, and research on soil mechanical interaction. Combined with the research progress and application requirements of subsoiling machines across the globe, current problems and technical difficulties were analyzed and summarized. Aiming to solve these problems, improve subsoiling quality, and reduce energy consumption, this article proposed future directions for the development of subsoiling machines, including optimizing the soil model in computer simulation, strengthening research on the subsoiling mechanism and comprehensive effect, developing new tillage depth monitoring and control systems, and improving wear-resisting properties of subsoiling shovels.


Author(s):  
Н.Т. Чеботарёв ◽  
Н.Н. Шергина

В условиях Республики Коми в полевом стационарном опыте на дерново-подзолистой легкосуглинистой почве изучена эффективность различных доз органических и минеральных удобрений, а также совместного их применения. Исследования проводили в 1978–2019 годах на опытных полях Института агробиотехнологий ФИЦ Коми НЦ УрО РАН. Целью проводимых исследований было изучение влияния комплексного применения удобрений на продуктивность и качество кормовых культур в шестипольном севообороте. Кормовой севооборот имел следующее чередование культур: картофель, викоовсяная смесь с подсевом многолетних трав, многолетние травы 1 г.п., многолетние травы 2 г.п., викоовсяная смесь, картофель. В результате научных исследований (более 40 лет) установлено, что наиболее эффективной была органоминеральная система удобрений, особенно при внесении 80 т/га торфонавозного компоста (ТНК) и минеральных удобрений. Многолетние исследования показали, что наиболее значительные урожаи кормовых культур (в среднем за три ротации) получены при использовании 80 т/га ТНК и NPK: однолетних трав — 4,4 т/га; многолетних трав — 6,2 и картофеля — 7,1 т/га сухого вещества высокого качества. Содержание сухого вещества в клубнях картофеля в вариантах с NPK составило 18,0–18,8%, на органическом фоне — 18,4–18,9 и при комплексном применении удобрений — 17,1–17,7; в контроле — 19,6%. Количество крахмала в картофеле незначительно различалось по вариантам опыта и равнялось 12,6–13,1%. Содержание нитратов не превышало ПДК (250 мг/кг сырой массы). Количество сухого вещества в однолетних и многолетних травах изменялось незначительно и составляло 19,0–19,8 и 25,0–26,8% соответственно. Установлено, что удобрения способствовали повышению содержания сырого протеина в однолетних и многолетних травах до 13,1–15,0% (в контроле — 11,2%) и 8,8–10,6 % (в контроле — 8,1%) соответственно. The impact of various rates of organic and mineral fertilizers was analyzed in the Komi Republic on sod-podzolic soil with low loam content. The research took place at the Institute of Agricultural Biotechnology in 1978–2019. The goal was to test forage crop productivity and quality under fertilization and six-field crop rotation. Crop rotation happened as follows: potatoes, vetch-oat mixture overseeded by perennial grasses, first-year perennial grasses, second-year perennial grasses, vetch-oat mixture, potatoes. For 40 years the combination of mineral and organic fertilizers was the most effective. The highest yields for three rotations were observed under the application of 80 t ha-1 of peat-manure compost and NPK: annual grasses produced 4.4 t ha-1; perennial grasses — 6.2, and potatoes — 7.1 t ha-1 of high-quality dry matter (DM). Potato tubers accumulated 18.0–18.8% of DM under NPK application, 18.4–18.9 — under organic nutrition, 17.1–17.7 — when using complex fertilization, and 19.6% — in the control. Starch content varied within 12.6–13.1% in potatoes. Nitrate content did not exceed the maximum acceptable concentration (250 mg/kg of raw mass). DM concentrations amounted to 19.0–19.8 and 25.0–26.8% in annual and perennial grasses, respectively. Fertilization increased crude protein amount in annual and perennial grasses up to 13.1–15.0% (versus 11.2% in the control) and 8.8–10.6 % (versus 8.1%), respectively.


2017 ◽  
Vol 9 (11) ◽  
pp. 172
Author(s):  
Maria Teresa Cristina Coelho do Nascimen ◽  
Joelma Sales dos Santos ◽  
Carlos Alberto Vieira de Azevedo ◽  
Vera Lucia Antunes de Lima ◽  
Rubens Barrichello Gomes Barbosa

The reuse of solid and liquid wastes has become a viable practice for the sustainability of agricultural production, because it meets the nutritional needs of crops and also allows the use of nutrients present in these residues. The objective of this work was to analyze the nutritional value of Tifton 85 irrigated with treated domestic wastewater and fertilized with nitrogen doses from poultry bed in four successive cuts, with frequency of 35 days. The experiment was set up in a protected environment, arranged in a completely randomized experimental design, in a 5 × 2 factorial scheme, with four replications. Five doses of nitrogen were tested through organic fertilization from avian beds (0, 15, 30, 45 and 60 kg N ha-1) and two irrigation water qualities (treated domestic well and artesian well). After the cuts the material was dried and sent to the laboratory to determine the following parameters: crude protein (CP), neutral detergent fiber (NDF) and Tifton 85 acid detergent fiber (ADF). The highest values of crude protein were obtained using the domestic wastewater treated in the irrigation, as well as using the higher doses of nitrogen from poultry litter. Just as the NDF and ADF contents presented the best values when treated domestic wastewater and the highest nitrogen doses. Indicating that irrigation with wastewater and the use of organic fertilizer may substitute for conventional manures by promoting satisfactory levels of concentrations for fodder.


2010 ◽  
Vol 67 (4) ◽  
pp. 424-429 ◽  
Author(s):  
Ersin Polat ◽  
Halil Demir ◽  
Fedai Erler

The term 'organically grown food' denotes products that have been produced in accordance with the principles and practices of organic agriculture. The use of alternatives to synthetic fertilizers is an important issue in organic systems. A two-year field experiment to evaluate effects of organic fertilizers on the yield and quality of open field grown tomatoes (Lycopersicon esculentum Mill.) was carried out in Southern Turkey in 2000 and 2001. Combinations of manure, blood flour and micronutrient preparations were used for fertilization, and conventional mineral fertilization was included as the control. Yield did not differ between the fertilization and the Conventional treatments in the first year of the study, but the highest yield was obtained from conventional in the second year. No differences were found between treatments in terms of fruit soluble sugar content or citric acid. The application of organic fertilizers positively affected the micronutritional element content of tomato fruits compared to the conventional treatment. Organic fertilization results in improved yield and fruit quality compared to conventional fertilization. In addition, organic fertilization should be supported in order to facilitate reuse and disposal of organic wastes and to maintain and/or increase soil fertility.


2020 ◽  
Vol 13 (1) ◽  
pp. 41
Author(s):  
Anny Mulyani ◽  
Mamat Haris Suwanda

<p><strong>Abstrak</strong>. Wilayah Nusa Tenggara mempunyai lahan kering beriklim kering seluas 4,9 juta ha dengan curah hujan &lt;2.000 mm/tahun dan bulan kering 5-10 bulan, bersolum tanah dangkal dan berbatu. Sebagian lahan tersebut sudah dimanfaatkan menjadi lahan pertanian terutama jagung, akibatnya produktivitas tanaman jagung rendah dibandingkan potensi genetiknya, yaitu sekitar 2,5 ton/ha di NTT dan 5,3 ton/ha di NTB dibanding dengan potensi genetiknya 9 ton/ha. Sejak tahun 2010-2015, Badan Penelitian dan Pengembangan Pertanian telah mengembangkan inovasi teknologi pengelolaan lahan kering beriklim kering dan berbatu di beberapa kabupaten di NTT dan NTB, meliputi penyediaan sumberdaya air (dam parit, embung, tampung renteng mini, sumur dangkal), pengenalan varietas unggul baru dan budidaya tanaman pangan. Pembelajaran yang diperoleh menunjukkan bahwa penyediaan air menjadi titik ungkit untuk meningkatkan indeks pertanaman dan produktivitas tanaman. Inovasi teknologi yang dibutuhkan petani adalah, mudah diterapkan, biaya murah, dan efisien tenaga kerja mendorong berlanjutnya teknologi tersebut meskipun progam tersebut telah selesai. Pada tahun 2014-2018 telah dilaksanakan kegiatan pertanian konservasi melalui dana hibah barang dan jasa yang dikelola FAO. Prinsip dasar pertanian konservasi terdiri atas 3 pilar, yaitu olah tanah terbatas berupa lubang olah permanen, penutupan permukaan tanah, rotasi/tumpangsari. Lubang tanam tersebut diberi pupuk kandang atau kompos, dan ditanami jagung pada 4 penjuru lubang, dan ditumpangsarikan dengan berbagai kacang-kacangan atau tanaman merambat seperti labu kuning yang berfungsi sebagai penutup tanah dan penghasilan tambahan dari kacang-kacangan berumur pendek. Berdasarkan hasil analisis tanah sebelum dan sesudah implementasi pertanian konservasi menunjukkan bahwa pertanian konservasi dapat meningkatkan kesuburan tanah, retensi air dan meningkatkan produksi tanaman jagung.</p><p> </p><p><strong>Abstract</strong>. The Nusa Tenggara region has upland area with dry climate of 4.9 million ha, less than 2,000 mm annual rainfall, 5-10 dry months, shallow and rocky soils. Some of the land has been used for agricultural development, especially corn, resulting in low corn productivity of around 2.5 tons / ha in NTT and 5.3 tons / ha in NTB as compared to it genetic potential 9 tons /ha. Since 2010-2015, Indonesian Agency of Agricultural Research and Development has developed innovation of soil management technology for upland with dry climates and and rocky soils in several districts in NTT and NTB. The innovation includes the provision of water resources (dam trenches, reservoirs, mini catchments, and shallow wells), introduction of new high yielding varieties and cultivation crops. The lessons learned show that water supply is the initial point to increase cropping index and crop productivity. Technological innovations needed by farmers are easy to implement, low cost, and labor efficient thereby encourage the continuation of the technology even though the program has been completed. In 2014-2018, conservation agriculture activities were carried out through grants of goods and services managed by Food Agriculture Organization (FAO). The basic principle of conservation agriculture consists of 3 pillars, namely limited tillage in the form of permanent planting holes, cover crops, rotation / intercropping. The planting hole is given manure or compost, and planted with corn in 4 corners, and intercropped with various nuts or vines such as pumpkin that serves as a soil cover and additional income from short-lived beans. Based on the results of soil analysis before and after the implementation of conservation agriculture, it shows that conservation agriculture can increase soil fertility, water retention and increase corn crop production.</p>


Author(s):  
Alessandra Algeri ◽  
Augusto V. Luchese ◽  
Alessandro J. Sato ◽  
Laércio A. Pivetta

HIGHLIGHTS Combining different sources of organic fertilizers is a viable strategy to balance the nutritional demand for tomato. Tomato can be produced without soluble mineral fertilizers. The effect of organic fertilization depends on the cultivar.


Author(s):  
V.S. Sergeev ◽  
◽  
D.R. Mukminov ◽  
◽  

Sugar beet is the main technical crop in the Republic of Bashkortostan. Beet growing in the region is carried out in the zone of risky agriculture. Based on the bioproducts produced for Beta vulgaris growing, the team of the BashInkom Scientific & Innovation Enterprise together with scientists from the Research Institute of Sugar Beet and Sugar and leading Russian beet growers improved and optimized the traditional technology, which, even under stressful conditions (drought, temperature decrease, waterlogging, freezing, toxic chemical oppression, lack of readily soluble nutrients) and a significant reduction in production costs, increases crop productivity by 20% and sugar content by 0.1-0.3%. Production experiments were carried out in beet-growing farms of the republic: farming company “Mukminov”, LLC “Voskhod” (Gafuri region), LLC farming company “Salavat”, LLC “Michurina” (Aurgazinsky district), LLC “Region-Agro” (Davlekanovsky district), etc. Research results confirm the effectiveness of the use of biological products and biofertilizers in sugar beet cultivation technology. The increase in the yield amounted to 2-10 t/ha compared to traditional technology; sugar content increased to 0.3%; finance costs that are attributable to the acquisition and use of biological products and bioactivated fertilizers have paid off, and high profitability is guaranteed. Conclusions: 1. Biological products and bioactivated fertilizers are an integral and mandatory element in the technology of sugar beet cultivation, as well as an innovative solution in protecting plants from environmental stress factors and in balancing plant nutrition by carrying out leaf feeding in key phases of growth and development. 2. Biologized technology allows increasing the yield of sugar beet by 20% and reducing the cost of chemical plant protection products and mineral fertilizers by 1.2-1.3 times. 3. Economic efficiency in the cultivation of sugar beet from the use of biological products and bioactivated fertilizers is up to 8 net profit per 1 RUB production costs.


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