scholarly journals AGRONOMIC EFFICIENCY OF FERTILIZERS BASED ON HUMUS, ROCK POWDER, AND MINERALS ON SOYBEAN YIELD IN PARAGUAY-PY

2020 ◽  
Vol 7 (3) ◽  
pp. 90-96
Author(s):  
Mônica Lau da Silva Marques ◽  
Jéssica Maria Israel de Jesus ◽  
Wanderson Moreira dos Santos ◽  
Jeferson Wendling Graciano Silva ◽  
Adriana Lau da Silva Martins ◽  
...  

Soybean is the most commercially cultivated crop in Paraguay, and obtaining high yields requires the application of large amounts of fertilizers, raising the cost of production. Developing strategies for the efficient use of applied nutrients is necessary. Therefore, the study aimed to evaluate the agronomic efficiency of combinations of mineral fertilizers with organic matter and rock powder in the development, nutrition, and yield of soybean. The experiment was carried out in Hernandarias, Paraguay, in the 2016-2017 harvest. The different fertilizers influenced the absorption of Zn, Mg and K, and grain yield. Among the treatments, the highlight was the agronomic efficiency index obtained by the replacement of 30% of mineral fertilizer by humus, presenting grain yield of 3219, 67 kg ha-1. However, it was equal to the mixing 30% of humus + rock powder with 70% of NPK formulation 04:40:10 with grain yield of 3206.50 kg ha-1, and the mixing 20% of humus + rock powder with 80% of NPK formulation 04:40:10 with grain yield of 3165.17 kg ha-1. Thus, it is recommended to use rock powder and humus in soybean production in Paraguay, especially in Latossolos (Oxisols) that have little organic matter and low CTC.

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Luiz Antonio Junqueira Teixeira ◽  
Ronaldo Severiano Berton ◽  
Aline Reneé Coscione ◽  
Luis Alberto Saes ◽  
Marcio Koiti Chiba

Sewage sludge (SS) or biosolid has been studied as source of nutrient for several different plant species. It also contributes to soil fertility recycling organic matter and plant nutrients. This followup work examines a three-year (2001–2004) field experiment designed to evaluate the response of banana plants (Cavendish subgroup) to the application of biosolid as source of nitrogen. The treatments consisted of control (mineral PK, no N), three rates of sludge, and two rates of mineral NPK fertilizer. Plant and soil N concentration, fruit yield, plant height, stem diameter, and foliar endurance index were measured. Fruit yield with mineral fertilization or sludge applications did not differ statistically(P>0.05). Application of biosolid resulted in statistically significant higher agronomic efficiency(P<0.05)in comparison to mineral fertilizers. The concentration of soil mineral nitrogen increased using mineral fertilizer or sludge until 0.80 m after three years of application. The effect of the source of N was smaller than the effect of the rate. Biosolid can be used as source of N for banana growers.


2013 ◽  
Vol 37 (4) ◽  
pp. 1004-1017 ◽  
Author(s):  
Camila Prado Cenciani de Souza ◽  
Cleide Aparecida de Abreu ◽  
Cristiano Alberto de Andrade ◽  
Mônica Ferreira de Abreu

Efficient analytical methods for the quantification of plant-available Zn contained in mineral fertilizers and industrial by-products are fundamental for the control and marketing of these inputs. In this sense, there are some doubts on the part of the scientific community as well as of the fertilizer production sector, whether the extractor requested by the government (Normative Instruction No. 28, called 2nd extractor), which is citric acid 2 % (2 % CA) (Brasil, 2007b), is effective in predicting the plant availability of Zn via mineral fertilizers and about the agronomic significance of the required minimal solubility of 60 % compared to the total content (HCl) (Brasil, 2007a). The purpose of this study was to evaluate the alternative extractors DTPA, EDTA, neutral ammonium citrate (NAC), buffer solution pH 6.0, 10 % HCl, 10 % sulfuric acid, 1 % acetic acid, water, and hot water to quantify the contents of Zn available for maize and compare them with indices of agronomic efficiency of fertilizers and industrial by-products when applied to dystrophic Clayey Red Latosol and Dystrophic Alic Red Yellow Latosol with medium texture. The rate of Zn applied to the soil was 5 mg kg-1, using the sources zinc sulfate, commercial granular zinc, ash and galvanic sludge, ash and two brass slags. Most Zn was extracted from the sources by DTPA, 10 % HCl, NAC, 1% acetic acid, and 10 % sulfuric acid. Recovery by the extractors 2 % CA, EDTA, water, and hot water was low. The agronomic efficiency index was found to be high when using galvanic sludge (238 %) and commercial granular zinc (142 %) and lower with brass slag I and II (67 and 27 %, respectively). The sources galvanizing ash and brass ash showed solubility lower than 60 % in 2 % CA, despite agronomic efficiency indices of 78 and 125 %, respectively. The low agronomic efficiency index of industrial by-products such as brass slag I and galvanizing ash can be compensated by higher doses, provided there is no restriction, as well as for all other sources, in terms of contaminant levels of arsenic, cadmium, chromium, lead, and mercury as required by law (Normative Instruction No 27/2006). The implementation of 2nd extractor 2 % CA and the requirement of minimum solubility for industrial by-products could restrict the use of alternative sources as potential Zn sources for plants.


Author(s):  
Marco André Grohskopf ◽  
Juliano Corulli Corrêa ◽  
Dirceu Maximino Fernandes ◽  
Vinícius de Melo Benites ◽  
Paulo César Teixeira ◽  
...  

Abstract: The objective of this work was to evaluate the nutritional content and grain yield of three corn (Zea mays) crops in response to phosphate fertilization with an organomineral fertilizer based on poultry litter or a mineral fertilizer, when cultivated on a Rhodic Khandiudox with a high initial phosphorus content. The experiment was carried out in the field in a randomized complete block design in a 2×4+1 factorial arrangement (organomineral or mineral fertilizer × 20, 40, 60, or 80 kg ha-1 P + control treatment with no phosphate fertilization), with four replicates each. Available P and total organic carbon (TOC) contents in the soil at the end of the crop cycle, plant tissue P contents, and grain yield were determined. The agronomic efficiency index (AEI) was estimated based on corn grain yield. After three harvests, soil available P and TOC contents did not increase significantly due to fertilizer use, but were directly related to P doses. In a Rhodic Khandiudox with a high initial P content, the use of an organomineral fertilizer based on poultry litter promotes higher corn crop yield, with an AEI 20% higher than that of the mineral fertilizer.


10.12737/2223 ◽  
2014 ◽  
Vol 8 (4) ◽  
pp. 146-149
Author(s):  
Таланов ◽  
Ivan Talanov

The articles offers the results of studies on the effect of sowing methods, seeding rates and backgrounds supply on yield and economic efficiency of broad bean cultivation for seeds. Increase seeding rate of 0.4 to 0.8 million units per hectare, regardless of sowing methods, increased the content of crude protein at 2.5-3.3 %. Similar changes occurred in the sugar content of the grain. In contrast, with increasing seeding rate, in wide-space sowing and calculated doses of fertilizers usage, resulted in a decrease of crude fiber, fat and ash. Adding the calculated doses of mineral fertilizers at planting in wide-space sowing with a rowing space of 45 cm and seeding rate of 0.6 million units per hectare provides about 10 thousand rubles per hectare, and the profitability level was 78 percent. Formation of high yields of green mass (41.0 tons per hectare) and grain ( 2.34 tons per hectare) of broad bean noted, when adding calculated doses of mineral fertilizers at wide-space sowing method with a seeding rate of 0.6 million units per hectare. I this way, we can see the high net income ( 9742.8 rubles per hectare), the level of profitability (78.0 %) and the cost of 1 ton of grain (5336.4 rubles per ton). The calculations of economic efficiency of fodder beans cultivation for grain showed that a high profitability obtained by making calculated doses of fertilizers, with a rowing method of sowing and seed rate of 0.7 million units per hectare was 59.4 %, while in wide-space sowing (45 and 60 cm) with a seeding rate of 0.6 million units per hectare was 78.0%.


2019 ◽  
pp. 64-68 ◽  
Author(s):  
A. I. Ivanov ◽  
Zh. A. Ivanova ◽  
I. V. Sokolov ◽  
I. A. Freydkin

The problem to provide the livestock industry of the North-West of Russia with forage grain has sharply escalated since 2010. Its successful solution is connected with the level and validity of the use of mineral and organic fertilizers. The purpose of the study, started by the Menkovsky Branch of the AFI in 2012, was to find effective options for the use of new organic-mineral fertilizer (OMF) which provides maximum agronomic effect and can produce grain of high quality. The methodological basis was the micro trials in polyethylene vessels without bottoms of 1 × 1 × 0.4 m in size with an artificially formed upper part of the profile of degraded sandy sod-podzolic soil. The soil was of 4.75 рНKCl, 3.46 mmol (eq) of Ng per100g, 3.20 mmol (eq) of Sch per100g, 1.83% of humus, 217 mg / kg of mobile compounds of phosphorus and 92 mg / kg of potassium. In the course of research, there was high agronomic efficiency of its use for winter wheat and satisfactory agronomic efficiency of its use for barley. When the winter wheat variety ‘Moskovskaya 56’ was fertilized with 5 t/ha of organic-mineral fertilizer containing 2.46% of Ng, 4.51% of P₂O₅ and 3.36% of K₂O, grain yield increased in 2.6 times. Fertilized with N75P50K50 the productivity improved in 3.8 times with a payback of 1 kg of NPK 7.4 and 5.6 grain units, respectively. It has been established that the combination of OMF with mineral fertilizers is accompanied by a significant yield increase with a decrease in its relative contribution from 153% to 59% and from 143% to 105% and a payback of 1 kg of NPK from 3.8 to 2.6 and from 6.9 to 4.7 of barley grain units and winter wheat grain units, respectively. The best indicators of the agronomic efficiency of OMF, both when applied in pure form and when fertilized with N75P50K50, corresponded to a dose of 4 t / ha. It has been found that the addition of 10 kg of potassium (К₂О) per 1 ton to OMF provided yield increase on 15% and the payback period of 1 kg NPK increased from 6.4 to 8.4 grain units. Qualitative indicators of wheat and barley grain fertilized with OMF improved due to the rise of raw protein percentage on 8–27% and a number of ash elements, such as CaO (from 0.07 to 0.11 mg/kg), MgO (from 0.16 to 0.21 mg/kg), Zn (from 21.5 to 23.6 mg/kg). 


2020 ◽  
Vol 202 (11) ◽  
pp. 45-52
Author(s):  
Tat'yana Shaykova ◽  
Elena Volkova ◽  
Marina Dyatlova

Abstract. The development of optimal nutritional system for agricultural crops is one of the main factors for the getting of stable yields. The deficiency of some macro- and microelements in plant nutrition, leading to yield decreasing, can be compensated with new complex of balanced fertilizers and biological products. The aim of the work is to study the effect of nitrogen fertilization, new forms of complex fertilizers based on active biological substances (“Kodamin B-Mo”, “K-Gumat-Na”, “Agroflorin” “Auksinolen”) and the microbiological preparation (MBP) “Bisolbifit” on the yield and quality of grain of fodder winter rye “Novaya Era” on sod-podzolic soils in the Pskov region. The originality is that for the agro-ecological conditions of the Pskov region, the influence of new complex fertilizers, biological and humic preparations in the cultivation of winter rye has been studied. Methods. The research was carried out in 2019 on the experimental field of the laboratory of agricultural technologies of the Federal research center for Bast Crops (Pskov Department). The records, observations and analyzes were carried out according to generally accepted methods. Results. The maximal positive effect on grain yield was made with the introduction of complete mineral fertilizer in doses of N80P40K70 with fractional nitrogen application: 20 kg of active substance – in the main fertilizer, 40 kg – in the tillering phase and 20 kg – in the booting phase. Up to 1,3 t/ha or 42.2 % to the control level were obtained in that variation. Application of mineral fertilizers in a dose of N40P40K70 and MBP “Bisolbifit” increased on 0,4 t/ha of grain, which amounted 10.6 %. Foliar double treatment of plants with fertilizer “Kodamin B-Mo” increased grain yield up to 8.6 %. The influence of the investigated factors on the protein content and nitrate nitrogen in plants of fodder winter rye, the weight of 1000 seeds and the structure of the yield was established. For 1 kg of active substance of mineral fertilizers at various doses of nitrogen fertilizing the additional yield of grain from 3.68 to 6.39 kg was obtained.


2018 ◽  
Vol 10 (6) ◽  
pp. 86
Author(s):  
Carlos Cesar Breda ◽  
Renan Francisco Rimoldi Tavanti ◽  
Onã Da Silva Freddi ◽  
Tauan Rimoldi Tavanti ◽  
Aline Regina Piedade ◽  
...  

The response of crops to the application of biofertilizers in the soil is not yet well established. Therefore, we carried out this study with the objective of evaluating the productive potential of maize fertilized with doses of sewage sludge, comparing with the use of mineral fertilizer over four agricultural seasons. The experiment was conducted in a Red Dystroferric Nitosol (Ultisol) in a randomized block design and repeated measures in time. The treatments consisted of five doses of sewage sludge and one treatment using nitrogen, phosphorus and potassium in formulation. All fertilizations were carried out at maize sowing at four planting times (summer and 2nd crop of 1st agricultural year and, summer and 2nd crop of 2nd agricultural year) and replicates. The results showed a cumulative increase in the P, Ca, Mg and Zn leaf concentrations over the four seasons crops, when the sewage sludge was used in the 30 and 40 Mg ha-1 doses. However, reductions in plant height, weight and maize cob diameter, mass and grain yield were observed at the end of the last harvest. The treated sewage sludge is a viable alternative for maize fertilization in the first harvest, provides increases in grain yield in the order of 1.35 Mg ha-1 and can be recommended instead of NPK mineral fertilizers in built-up fertility soils.


Author(s):  
Navdeep Singh ◽  
RS Gill ◽  
GS Dheri

Integrated nutrient management (INM) effects chemical transformation of nutrients in soil and plant uptake. This study present the long-term (30 years) effects of integrated nutrient management on zinc (Zn) fractions and rice yield. The treatments include ten combinations of nitrogen, phosphorous and potassium applied through mineral fertilizers and substituted through farmyard manure (FYM), green manure (GM) and wheat cut straw (WCS).The distribution of Zn into exchangeable (EXCH), carbonate bound (CARB), organic matter bound (OM), manganese oxides bound (MnOX), amorphous iron oxide bound (AFeOX) and crystalline iron oxide bound (CFeOX) was determined. The effect of long-term use of mineral fertilizers on EXCH-Zn was not significant as compared to control, however, EXCH-Zn increased significantly in INM treatments compared to both control and mineral fertilizer in surface soil (0-15 cm). Similarly, CARB-Zn and OM-Zn was significantly higher in INM as compared to control and mineral fertilizer treatments. The distribution of Zn in MnOX, AFeOX and CFeOX fractions was not distinctly affected with long-term fertilizations. In general, concentration of Zn fractions was lower in subsurface soils (15-30 cm) as compared to surface soils. The grain yield of rice increased in order control< mineral fertilizers <INM treatments. The highest grain yield (71.8 q ha-1) was recorded in INM treatment where 25% of the recommended NPK were supplied through GM. The positive and significant correlation of EXCH-Zn (r = 0.714), CARB-Zn (r = 0.601) and OM-Zn(r = 0.648) fractions and Zn uptake in grain showed that the plant availability of Zn depends upon these fractions in soils.


2020 ◽  
Vol 12 (21) ◽  
pp. 9008
Author(s):  
Shadman Khan ◽  
Zahir Shah ◽  
Ishaq Ahmad Mian ◽  
Khadim Dawar ◽  
Muhammad Tariq ◽  
...  

A research study was established at the research farm of the University of Agriculture, Peshawar during winter 2018–2019. Commercial biochars were given to the experimental site from 2014 to summer 2018 and received 0.95, 130 and 60 tons ha−1 of biochar by various treatments viz., (Biochar1) BC1, (Biochar2) BC2, (Biochar3) BC3 and (Biochar4) BC4, respectively. This piece of work was conducted within the same study to find the long-term influence of biochar on the fertility of the soil, fixation of N2, as well as the yie1d of chickpea under a mung–chickpea cropping system. A split plot arrangement was carried out by RCBD (Randomized Complete Block Design) to evaluate the study. Twenty-five kilograms of N ha−1 were given as a starter dosage to every plot. Phosphorous and potassium were applied at two levels (half (45:30 kg ha−1) and full (90:60 kg ha−1) recommended doses) to each of the four biochar treatments. The chickpea crop parameters measured were the numbers and masses of the nodules, N2 fixation and grain yield. Soil parameters recorded were Soil Organic Matter (SOM), total N and mineral N. The aforementioned soil parameters were recorded after harvesting. The results showed that nodulation in chickpea, grain yield and nutrient uptake were significantly enhanced by phosphorous and potassium mineral fertilizers. The application of biochar 95 tons ha−1 significantly enhanced number of nodules i-e (122), however statistically similar response in terms of nodules number was also noted with treatment of 130 tons ha−1. The results further revealed a significant difference in terms of organic matter (OM) (%) between the half and full mineral fertilizer treatments. With the application of 130 tons ha−1 of biochar, the OM enhanced from 1.67% in the control treatment, to 2.59%. However, total and mineral nitrogen were not statistically enhanced by the mineral fertilizer treatment. With regard to biochar treatments, total and mineral N enhanced when compared with the control treatment. The highest total N of 0.082% and mineral nitrogen of 73 mg kg−1 in the soil were recorded at 130 tons ha−1 of biochar, while the lowest total N (0.049%) and mineral nitrogen (54 mg kg−1) in the soil were recorded in the control treatment. The collaborative influence of mineral fertilizers and biochars was found to be generally non-significant for most of the soil and plant parameters. It could be concluded that the aforementioned parameters were greater for treatments receiving biochar at 95 tons or more per hectare over the last several years, and that the combination of lower doses of mineral fertilizers further improved the performance of biochar.


2021 ◽  
Vol 244 ◽  
pp. 02036
Author(s):  
Munisa Urmanova ◽  
Abdukodir Kuziev ◽  
Dilnavoza Burkhanova ◽  
Dilrabo Kadirova ◽  
Normamat Namozov ◽  
...  

This article illustrates a number of experiments to conduct research on agronomic techniques of seedling cultivation from the seeds of smooth licorice (Glycyrrhiza Glabra L). The analysis of research results on the effect of irrigation regimes on the growth and development of smooth licorice seedlings, the analysis of experimental work on the effects of smooth licorice irrigation regimens and mineral fertilizer rates on winter wheat yields was carried out. The cost effectiveness of growing seedlings from smooth licorice seeds was also studied by analyzing the results of irrigation procedures, determining the effect of soil processing methods, development and yield of winter wheat sown as a successive crop during cultivation of licorice saplings, and yield of roots in conditions of irrigated typical sierozem soils of the Tashkent province.


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