scholarly journals Soil fertility management in apple orchard with microbial biofertilizers

2020 ◽  
Vol 222 ◽  
pp. 03020
Author(s):  
Andrei Kuzin ◽  
Alexei Solovchenko ◽  
Ludmila Stepantsova ◽  
Grigory Pugachev
Keyword(s):  
Soil Fertility ◽  
Drip Irrigation ◽  
Field Experiments ◽  
Irrigation System ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Azotobacter Chroococcum ◽  
Organic Fertilizers ◽  
High Rate ◽  
Mineral Fertilizers

Intensification of horticulture in Russia involves planting of new high-density orchards with drip irrigation and fertigation as well as intensification of the exploitation of traditional orchards. This approach involves an increase in mineral fertilizer application imposing the risk of soil fertility loss. For several reasons, the use of traditional organic fertilizers like manure in orchards is currently marginal. Although bacteria-based biofertilizers cannot substitute mineral fertilizers completely, they can significantly reduce the need for mineral fertilizer application. The effect of microbial biofertilizers of the brands “Azotovit” (Azotobacter chroococcum), “Phosphatovit” (Bacillus mucilaginosus), as well as a mixture of bacteria and the fungus, “Organic” (Azotobacter chroococcum, Bacillus subtilis, Bacillus megaterium, Trichoderma harzian) was studied in two field experiments. In the experiment #1, the preparations “Azotovit” and “Phosphatovit” were delivered through a drip irrigation system in various combinations with mineral fertilizers. In experiment #2, the preparation “Organic” was also applied to the soil with irrigation water, also in combination with the mineral fertilizer. When solely applied, none of the studied preparations changed significantly the soil nutrient content and yield as compared with the variant fertilized by the mineral fertilizer at the maximum studied application rate. The combination of the microbial biofertilizer and mineral fertilizers applied at a low rate ensured the yield commensurate to that obtained under high-rate application of the mineral fertilizer.

scholarly journals Dynamics of soil fertility parameters in the Zaporizhzhya region and the ways of its restoration

2020 ◽  
Vol 4 (2) ◽  
pp. 353-362
Author(s):  
O. L. Romanenko ◽  
I. S. Kushch ◽  
A. V. Agafonova ◽  
Yu. O. Tenyukh ◽  
M. M. Solodushko ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Crop Yields ◽  
Weighted Average ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Nitrogen Fertilizers ◽  
Phosphorus Compounds ◽  
Mineral Fertilizers ◽  
Organic And Mineral Fertilizers ◽  
Positive Balance

During 2000–2018, the results of the application of organic and mineral fertilizers in dynamics and their effect on the content of humus and nutrients in the soils of the Zaporizhzhya region were reviewed. To control the state of soil fertility use the calculation of the balance of humus and nutrients. This makes it possible to determine the extent to which the application of nutrients with fertilizers covers their removal by crop yields. Negative tendencies have been identified, which have led to the deterioration of soil fertility in the Zaporizhia region. Measures are proposed to achieve a deficit-free balance of humus and nutrients. On average, in 2000–2018, the level of mineral fertilizer application in the Zaporizhia region remained low – 38 kg/ha (nitrogen – 28 kg, phosphorus – 7, potassium – 3 kg), and manure – only 0.2 t/ha. According to the results of agrochemical certification of agricultural lands, the dynamics of changes in the content of humus, easily hydrolyzed nitrogen, mobile compounds of phosphorus and potassium over the past 18 years has been determined. The average weighted content of humus in the soils in the VIII round was 3.44 %, IX – 3.52, X – 3.40, XI (2016–2018) – 3.57 %, which indicates the stability of this indicator. The weighted average nitrogen content, which is easily hydrolyzed during all rounds, has close values (83.6–90.3 mg/kg) and corresponds to a low level of its supply. The content of mobile phosphorus compounds during the VIII – IX rounds was quite stable (97.1–101.6 mg/kg), and in the X–XI rounds there was even an increase to 123.3–123.4 mg/kg. The phosphorus regime of soils is stable and corresponds to the increased level of security, except for the ninth round (average). Potassium regime of the soil for eighteen years also remains stable and refers to a high level of security (159.6–176.8 mg/kg). The balance of humus and nutrients in the soils of the region remains negative. There is a tendency of positive changes if we compare the results for the first (2003–2014) and second (2003–2018) periods. Thus, to achieve a positive balance of humus it is necessary to apply 2 t/ha of straw (+400 kg/ha), 20 kg/ha of nitrogen fertilizers and 6.4 t/ha of manure, and in 2003–2018 – respectively 2 t / ha straw (+400 kg/ha), 20 kg/ha of nitrogen, 5.8 t/ha of manure. Key words: soil, balance, dynamics, humus, fertility, organic and mineral fertilizers.

Soil conditions and yield of repeatedly grown apple orchard depending on long-term fertilizer application

2021 ◽  
Vol 1 (98) ◽  
pp. 34-47
Author(s):  
P. H. Kopytko ◽  
◽  
R. V. Yakovenko
Keyword(s):  
Soil Fertility ◽  
Organic Fertilizer ◽  
Humus Content ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Mineral Fertilizers ◽  
Soil Conditions ◽  
Apple Trees ◽  
The Impact

The issue of scientifically sound fertilizer application in fruit plantations, which are long-term and re-grown in one place remains insufficiently studied. To solve this problem is possible only in long-term stationary studies, as the impact of different fertilizer systems on changes in soil properties and tree productivity for a long period of their use. The results of researches of long-term fertilizer influence on the main fertility indices of dark gray podzolic heavy loam soil and productivity of repeatedly grown apple trees of Idared varieties on seed and vegetative (M4) rootstocks and Calville snow on seedling rootstock are considered. During the 85-year period of growing the first and second generation of apple trees in the experimental garden, the organic fertilizer (40 t/ha of cattle manure), mineral fertilizer (N120P120K120) and their combination (20 t/ha of manure + N60P60K60) were applied in the old plantation every two years in autumn in plowing in rows at 18–20 cm, and in the new repetition: manure, phosphorus and potassium fertilizers as well, and nitrogen fertilizer in half doses annually in spring for cultivation or disk plowing to a depth of 12–15 cm. As a result of research it was found that organic fertilizer better than mineral fertilizers provided the formation of soil fertility (humus and mobile compounds and forms of nutrients, soil reaction) and yield capacity of experimental apple trees, which for all years of fruiting exceeded the total yield of Calville snow and Idared on seedling and vegetative rootstocks, respectively, by 34.8, 27.7 and 23.4 % compared with the yield of the control non-fertilized areas and 16.0, 15.8 and 13.2 % – on those fertilized with N120Р120К120. Similar parameters of soil fertility indicators are formed by the organo-mineral fertilizer system with systematic long-term application of half the norms of organic and mineral fertilizers of manure 20 t/ha together with N60P60K60. However, the mineral system (N120P120K120) significantly less increases the humus content and content of macronutrients available for plant nutrition and does not enrich the soil with trace elements, acidifies the reaction of the soil environment

scholarly journals Application of organic fertilizers alter the physical and biogeochemical properties of agricultural topsoil and subsoil

2021 ◽  
Author(s):  
Anke Neumeier ◽  
Julien Guigue ◽  
Yaser Ostovari ◽  
Andreas Muskolus ◽  
Henk Martens ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Fertility ◽  
Organic Amendments ◽  
Mineral Fertilizer ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Carbon And Nitrogen ◽  
Biogas Digestate ◽  
Nitrogen Contents ◽  
Soc Stocks

<p>Sustainable agricultural practices aim to ensure the rebuilt of soil organic carbon (SOC) stocks and to sustain soil fertility. One of the levers is the use of carbon and nutrient inputs in the form of organic amendments, such as farmyard manure, slurry and biogas digestate. These organic fertilizers represent a promising alternative to the mineral fertilizers, which are mainly made from non-renewable resources. The use mineral fertilizers is indeed associated with an excessive use of natural resources and a loss of biodiversity. The effect of organic amendments compared with traditional mineral fertilizers on SOC stocks and soil fertility are uncertain in the longer-term. We aimed at investigating the effects of mineral and organic fertilizers (i.e., manure, pig slurry and biogas digestate) on topsoil and subsoil biogeochemistry, after eight years of application. For this purpose, we sampled soil cores down to a depth of one meter in a randomized field experiment in Germany, running since 2011. A full-profile assessment of the carbon and nitrogen distribution, stability and bioavailability was achieved using a combination of classical bulk physico-chemical analyses (e.g., SOC and nitrogen contents, texture, pH, bulk density) and state-of-the-art imaging techniques. Selected samples were analysed for aggregate size distribution, as well as organic carbon and nitrogen contents and allocation within these aggregates. Further, undisturbed core-samples were scanned using a hyperspectral camera in the Vis-NIR range to reveal hotspots of carbon storage at the soil profile scale. Soil carbon distribution was predicted as a function of spectral response, using a variety of machine learning approaches. The application of organic fertilizers (whatever their nature) resulted in higher SOC contents in the first 10 cm, as compared to the control and the mineral fertilizer treatments. The SOC stocks were + 21-33 % higher in the soil treated with organic fertilizers as compared to the control treatment. The application of mineral fertilizer or digestate, as compared to the control, resulted in higher relative amount of microaggregates (versus macroaggregates) (+ 19-40 %) in the soil down to 80 cm. These results will provide essential information to develop management strategies that increase nutrient recycling as well as SOC stocks.</p>

scholarly journals Co-application of mineral and organic fertilizers under deficit irrigation improves the fruit quality of the Wonderful pomegranate

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11328
Author(s):  
Khalid F. Almutairi ◽  
Mahmoud Abdel-Sattar ◽  
Ahmed M. Mahdy ◽  
Mohamed A. El-Mahrouky
Keyword(s):  
Fruit Quality ◽  
Deficit Irrigation ◽  
Field Experiments ◽  
Irrigation Treatment ◽  
Mineral Fertilizer ◽  
Organic Fertilizers ◽  
Interactive Effects ◽  
Mineral Fertilizers ◽  
The Individual

Background The aim of this study was to determine the individual and interactive effects of various irrigation regimes and fertilizer treatments on the quality of the Wonderful pomegranate cultivar. Methods Two field experiments were conducted over two consecutive growing seasons (2018 and 2019) to determine the individual and interactive effects of various organic and mineral fertilizer treatments on the fruit quality of the Wonderful pomegranate under various irrigation conditions. A split-plot experimental design was used, in which the main plots included three levels of irrigation (100%, 80%, and 60% of evapotranspiration) while the subplots included five fertilizer treatments with different co-application ratios of mineral and organic fertilizers. Results All tested physicochemical properties of the fruit were significantly affected by the irrigation treatment, with irrigation at 80% of evapotranspiration representing the best strategy for reducing water use and improving fruit quality. Moreover, the co-application of mineral and organic fertilizers had a significant effect on fruit quality, with 75% mineral + 25% organic fertilizer improving all of the physical and chemical properties of the fruit in both experimental seasons. Irrigation and the co-application of mineral and organic fertilizers also had a significant interaction effect on the physicochemical attributes of fruit, which further increased fruit quality. Conclusions The co-application of organic and mineral fertilizers produced better quality pomegranate fruit than mineral fertilizer alone under deficit irrigation conditions. This technique could therefore be applied to improve the fruiting of horticultural trees in arid growing regions.

scholarly journals Bacterivorous Nematodes Correlate with Soil Fertility and Improved Crop Production in an Organic Minimum Tillage System

2020 ◽  
Author(s):  
Jan H. Schmidt ◽  
Johannes Hallmann ◽  
Maria R. Finckh
Keyword(s):  
Microbial Biomass ◽  
Soil Fertility ◽  
Microbial Activity ◽  
Crop Production ◽  
Field Experiments ◽  
Mineral Fertilizer ◽  
Farming Systems ◽  
Fertilizer Application ◽  
Minimum Tillage ◽  
Cover Cropping

Reduced nutrient mineralization rates under minimum tillage are usually compensated by mineral fertilizer application. These cannot be applied in organic farming systems, however. We hypothesized that organic minimum tillage based on frequent cover cropping and application of dead mulch will improve soil fertility and can compensate for the potential negative effects of minimum tillage. Two long-term field experiments were set up in 2010 and 2011 comparing plough versus minimum tillage including application of transferred mulch. As second factor, the application of compost versus mineral potassium and phosphorus was compared. In 2019, soils were analyzed for soil pH, organic carbon, macro-, micronutrients, microbial biomass, microbial activity and total nematode abundance. In addition, performance of pea in the same soils was determined under greenhouse conditions. Across both experiments, macronutrients (+52%), micronutrients (+11%), microbial biomass (+51%), microbial activity (+86%), and bacterivorous nematodes (+112%) increased in minimum tillage compared with the plough-based system. In the greenhouse, pea biomass was 45% higher in the soil that had been subjected to minimum tillage compared to the plough. In conclusion, soil fertility can be improved in organic minimum tillage systems by intensive cover cropping and application of dead mulch to levels higher than in a plough-based system.

ОтзывчивостькартофелянаудобрениеипотериурожаяотфитофторозавусловияхСеверо-ЗападаРоссии

2019 ◽  
Author(s):  
A.I. Ivanov ◽  
Zh.A. Ivanova ◽  
O.I. Yakusheva ◽  
P.A. Filippov
Keyword(s):  
Late Blight ◽  
Humus Content ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Organic Fertilizers ◽  
Winter Rye ◽  
Soil Cultivation ◽  
Weather And Climate ◽  
Fertilizer System ◽  
Comprehensive Study

Целью комплексного исследования, выполненного в Меньковском филиале АФИ в 20122017 годах была оценка вредоносности возбудителя фитофтороза в зависимости от почвенноагрохимических и погодноклиматических условий. Методической основой исследования служил длительный полевой опыт агрофизический стационар в системе полевого и овощекормового севооборотов, в которых картофель возделывали по обороту пласта многолетних трав после озимой ржи и после ячменя. Объектами исследования служили: картофель раннеспелого сорта Ломоносовский среднеустойчивого к возбудителю фитофтороза по клубням и слабоустойчивого по ботве дерновоподзолистая почва средней, хорошей и высокой степени окультуренности и системы удобрения культуры. Супесчаная почва опыта характеризовалась рНКСl 5,26,3, содержанием гумуса 2,13,7, подвижных соединений P2О5 195676 мг/кг и К2О 97298 мг/кг. На хорошо окультуренной и высокоокультуренной почвах их поддерживали применением под картофель 35 и 70 т/га органических удобрений соответственно. Факторы исследования: степень окультуренности почвы (варианты: средняя, хорошая и высокая) и уровень применения минеральных удобрений в расчете на заданный КПД (коэффициент полезного действия фотосинтетически активной радиации) (варианты: КПД ФАР, 13 без удобрений КПД ФАР, 24 N80P20K100 КПД ФАР, 35 N120P30K150). В ходе комплексного исследования установлены параметры поражения возбудителем фитофтороза и уровень потерь урожая картофеля в зависимости от агроклиматических и почвенноагрохимических условий. Агрономическая эффективность изученных вариантов системы удобрения на культуре картофеля высокая. Уровень прибавок урожайности клубней и окупаемость 1 кг д.в. удобрений достигли 3358 и 8,311,6 з.ед. (зерновых единиц) на минеральной, 2545 и 3,98,0 з.ед. на органической и 3379 и 3,86,7 з.ед. на органоминеральной системе удобрения. В неэпифитотийных условиях (2 из 3 лет наблюдений) на фоне низких и умеренных показателей поражения общие потери урожая составляют 5, а окультуривание почвы и применение органических и минеральных удобрений снижают их на 3080. На эпифитотийном фоне, повторяющемся 1 раз в 3 года, пораженность ботвы и клубней картофеля возрастает в 4,3 и 6,1, интенсивность поражения в 2,8 и 3 и развитие в 12 и 17,5 раза соответственно. В эпифитотийные годы потери урожая возрастают в 5,2 раза (до 26), а минеральная система удобрения сокращает их только на среднеокультуренной почве. На этом фоне повышение степени окультуренности почвы и доз органических удобрений до высокого уровня неэффективно.Late blight is one of the most harmful potato diseases in the NorthWest of Russia. Today, its negative effects are aggravated by weather and climate changes. The goal of a comprehensive study carried out in the Menkovsky branch of the Agrophysical Institute in 2012 2017 was an assessment of the harmfulness of the late blight pathogen depending on soilagrochemical, weather and climate conditions. The methodical basis of the research was a prolonged field agrophysical stationary experiment in the system of field and vegetablefeed crop rotations, where potato was cultivated after winter rye and after barley, which, in turn, were grown after perennial grasses. The objects of the study were potato Lomonosovsky, sodpodzolic soil with different degree of cultivation and fertilizer systems for the culture. Potato Lomonosovsky is early ripening variety, its tubers are medium resistant to the late blight agent, and its tops are weakly resistant to it. The sodpodzolic soil had average, good and high cultivation degree. Sandy loam soil in the experiment had the value of pHKCl of 5.2 6.3, the humus content of 2.1 3.7, the content of mobile P2O5 and K2O compounds of 195 676, 97 298 mg/kg, respectively. In well and highly cultivated soils, these parameters were maintained by the application of 35 and 70 t/ha of organic fertilizers for potato, respectively. The experimental factors were the degree of soil cultivation (average, good and high) and the level of mineral fertilizer application for a given efficiency of photosynthetically active radiation (PAR efficiency of 1 3, without fertilizers PAR efficiency of 2 4, N80P20K100 PAR efficiency of 3 5, N120P30K150). In the course of the comprehensive study, the parameters of potato damage by late blight and the level of crop losses were established depending on the agroclimatic soilagrochemical conditions. Agronomic efficiency of the studied variants of the fertilizer system for potato was high. The level of tuber yield increase and payback of 1 kg of fertilizers active substances reached 33 58 and 8.3 11.6 cereal units (CU) for the mineral system, 25 45 and 3.9 8.0 CU for the organic one, and 33 79 and 3.8 6.7 CU for the organic and mineral fertilizer system. Under nonepiphytotic conditions (2 of 3 years of the observation), against the background of low and moderate damage rates, the total yield loss was 5, and the soil improvement and organic and mineral fertilizer application reduced them by 30 80. Against an epiphytotic background, repeated 1 time in 3 years, the damage of tops and potato tubers increases by a factor of 4.3 and 6.1, the intensity of the damage grew 2.8 and 3 times, and the development increases by a factor of 12 and 17.5 times, respectively. In the epiphytotic years, yield losses increased 5.2 times (up to 26), and the mineral fertilizer system reduced them only in medium cultured soil. Against this background, increasing the soil cultivation degree and organic fertilizer doses to a high level is ineffective.

FERTILIZATION SYSTEM AS A WAY OF SOIL FERTILITY AND STABILIZATION OF FIELD CROP ROTATION PRODUCTIVENESS

1970 ◽  
pp. 38-41
Author(s):  
V. T. Sinegovskaya ◽  
E. T. Naumchenko
Keyword(s):  
Soil Fertility ◽  
Crop Rotation ◽  
C:N Ratio ◽  
Mineral Fertilizer ◽  
Organic Fertilizers ◽  
Nitrogen And Phosphorus ◽  
Rotation System ◽  
Mobile Phosphorus ◽  
Crop Rotation System ◽  
Fertilizer System

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.

Change of the redox potential in the profile of light grey forest surface-gleyed soil under different anthropogenic

2018 ◽  
Vol 2 (95) ◽  
pp. 26-29
Author(s):  
O.S. Gavrishko ◽  
Yu.M. Olifir ◽  
T.V. Partyka
Keyword(s):  
Redox Potential ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Soil Tillage ◽  
Mineral Fertilizers ◽  
Gleyed Soil ◽  
Agricultural Use ◽  
Fertilizer System ◽  
And Control ◽  
The Given

The results of studies of the change in redox potential in the profile of light gray forest surface-gleyed soil on variants with long-term agricultural use without applying fertilizers and mineral fertilizer system solely compared with the soil under the forest are presented. On the basis of the conducted analyzes it was established, that soil tillage without fertilizer application and with mineral fertilizer solely has a different effect on ROP in the profile. In the soil without fertilization (control) as compared to the forest a moderate oxidizing (514 mV) and slightly oxidizing (437 mV) processes are happening. Prolonged application of mineral fertilizers to the soil (N65R68K68) significantly reduced the redox potential of all genetic horizons compared with forest and control without fertilizers. For the given fertilizer system the highest values of ROP were obtained in arable HEgl and underarable HEgl layers: 426 mV and 416 mV respectively. Redox potential sharply decreases with the depth to 398-311 mV, which characterizes processes occurring in the soil profile, as weakly reducing and close to moderately reducing.

scholarly journals Scientific bases of the humus stabilization in ordinary chernozem in Russia

2019 ◽  
Vol 52 (1) ◽  
pp. 113
Author(s):  
Oleg Goryanin ◽  
Anatoly Chichkin ◽  
Baurzhan Dzhangabaev ◽  
Elena Shcherbinina
Keyword(s):  
Soil Fertility ◽  
Humus Content ◽  
Perennial Grasses ◽  
Crop Rotations ◽  
Organic Fertilizers ◽  
Annual Rainfall ◽  
Ordinary Chernozem ◽  
Mineral Fertilizers ◽  
Plant Residues ◽  
Middle Volga Region

<p>The influence of long-term use of mineral and organic fertilizers, crop rotations, plant residues, soil treatment systems on humus content of common chernozems and stabilization of productivity of field crops in the arid conditions of the Middle Volga region is considered on the example of researches in the Samara area. The zone climate of field experiments is characterized as extremely continental. The sum of the active temperatures (above 10°C) is 2,800-3,000°C. The average annual rainfall is 454.1 mm with fluctuations over the years from 187.5 mm to 704.6 mm. At some years, precipitation does not happen within a month or more. Hydrothermal index in May-August is 0,7, the duration of the frost-free period is 149 days. If the humus content in the region is 4.35-4.52%, then, it is necessary to introduce 6.7-8.0 t/ha of manure per year to maintain the balance of the deficit. The introduction of biological methods for the conservation and reproduction of soil fertility (green fertilizers, perennial grasses, straw as fertilizer) reduces the loss of humus by 0.15-0.24 t/ha. This makes it possible to increase the payback of mineral fertilizers, which must be taken into account when developing fertility reproduction systems for soils. In the variants with minimal and differentiated cultivation of the soil during crop rotation in 30 years of the study, the loss of humus in the 0-30 cm layer decreased by 0.04 - 0.73% (43-789 kg per year with maximum values in the combination of direct seeding of spring crops with deep loosening for a number of crop rotations is 4.14%, significantly exceeding the control (by 0.54%). The decrease in soil fertility in the variants with constant plowing and minimal tillage contributed to an increase in the conjugation of productivity of crops with humus. Based on the research, in order to preserve the fertility of the soil of ordinary chernozem, it is necessary to use green fertilizer, leguminous perennial grasses. In the regional rotations of crop production, new generation technologies are recommended, the basis of which is differentiated tillage with the use of crushed straw as fertilizer.</p>

scholarly journals Effects of Organic and Inorganic Fertilizers on the Growth and Yield of Kenaf (Hibiscus cannabinus L.) Production in South Western Nigeria

2021 ◽  
pp. 1-9
Author(s):  
S. O. Olanipekun ◽  
A. O. Togun ◽  
A. K. Adebayo ◽  
F. B. Anjorin
Keyword(s):  
Seed Yield ◽  
Block Design ◽  
Field Trials ◽  
Fertilizer Application ◽  
Hibiscus Cannabinus ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Mineral Fertilizers ◽  
Inorganic Fertilizers ◽  
Organic Fertiliser

Farmers use Inorganic Fertilizers (IF) to improve kenaf yield in Nigeria. However, the detrimental effects of mineral fertilizers and its high cost calls for the use of organic fertilizers that are locally available and environment friendly. Combination of Organic Fertiliser (OF) with IF may reduce the bulkiness of OF while harnessing the benefit of both for higher yields. Field trials were conducted at Ibadan and Ilora in 2013 and 2014 to investigate the effects of combined fertilizers on the growth and yield of kenaf. Organic and IF (NPK 20:10:10) fertilizers as: (i) 160 kg ha-1 (sole organic), (ii) 100 kg ha-1 (sole IFl), (iii) Organic and IF at 50:50 ratio and (iv) control (no fertilizer). The experiment was laid out in Randomized Complete block design (RCBD) and replicated three times. Results showed that plant height (220.17 cm, 216.80 cm) and stem diameter (2.27 cm, 1.16 cm). Bast fiber (2.27 t/ha, 2.27 t/ha) and seed yield (1.69 t/ha, 1.78 t/ha) in Ibadan and Ilora respectively were significantly higher in plots with combined fertilizer. Combined fertilizers had the highest fiber and seed yield above sole application and control (no fertilizer application). Hence it is recommended for kenaf cultivation in Southwest Nigeria.

Sign in / Sign up

Export Citation Format

Share Document