scholarly journals Response of Okra to Incorporating Humic Acid-Derived Active Molecules into NPK Fertilizer and Lime on Coastal Plain Sand in Calabar, Nigeria

2019 ◽  
pp. 1-9
Author(s):  
S. M. Afu ◽  
E. A. Akpa
Keyword(s):  
Humic Acid ◽  
Total Nitrogen ◽  
Growth Parameters ◽  
Block Design ◽  
Chemical Properties ◽  
Available Phosphorus ◽  
Organic Carbon Content ◽  
Cropping Season ◽  
Npk Fertilizer ◽  
The University

This study evaluated the response of okra to NPK fertilizer with humic acid and lime at the University of Calabar, Teaching and Research Farm between October 2015 and January 2016 cropping season. The experiment was laid out in a randomized complete block design (RCBD) with four replications. The experiment consisted of NPK with humic acid and liming materials as treatments. The test crop was okra. The result of initial analysis of the chemical properties of the soil before the experiment showed that the soil was acidic and was low in exchangeable bases, organic matter (1.13%), total nitrogen (0.14%) and ECEC but high in available phosphorus (26.63 mg/kg) and base saturation. After application of treatment, the result showed that 6.2 g of lime and 4.6 g of NPK with humic acid increase the soil pH from 5.6 units in the control to 5.8 in NPK with Humic Acid, 6.0 in NPK with Humic Acid and lime and 6.4 in lime. Organic carbon content, total nitrogen and available phosphorus also increase in like manner. The results for the growth parameters showed that okra height, number of leaves, and pod yield were significantly (p≤0.05) different from the control. Based on the result of this study further research is recommended in other locations to fully ascertain the effects of this treatment using a different combination.

scholarly journals Response of Tomato Variety (Roma F) Yield to Different Mulch Materials and Staking in Kabba, Kogi State, Nigeria

2015 ◽  
Vol 3 (2) ◽  
pp. 61 ◽  
Author(s):  
Ogundare S. K. ◽  
Babatunde I. J. ◽  
Etukudo O. O.
Keyword(s):  
Growth Parameters ◽  
Block Design ◽  
Chemical Properties ◽  
Fruit Yield ◽  
Growth And Yield ◽  
Available Phosphorus ◽  
Land Area ◽  
Tomato Production ◽  
Tomato Variety ◽  
Significant Difference

This experiment was carried out at student’s experimental field, Kabba College of Agriculture, Horticultural Section to investigate the response of tomato variety (Roma F) yield to different mulch materials and staking. A split plot experiment was laid out in a randomized complete block design (RCBD) with three replications to randomize the staking levels and mulch materials in the main and sub-plots, respectively. The experiment comprised of two staking levels, i.e. stick staking (SST) and no- stick staking (NST) and six mulch materials, i.e. black polyethylene, white polyethylene, maize straw, palm fronts, grasses and no mulch. The parameters taken on soil physical and chemical properties are soil moisture content (%), soil temperature (O C), soil pH, total nitrogen, available phosphorus and soil organic matter. Growth and yield parameters taken are as follows: average plant height, number of leaves, and number of fruits, stem girth, number of fruit per plant, fruit length, fruit diameter and yield per land area. Weeds were identified and their dry weights were measured. Data were collected from ten randomly selected plants in each plot. The data were statistically analyzed using GENSTAT. The analysis of variance (ANOVA) was performed to find out the significance of variation among the treatments while the significant difference between mean treatments were separated using Duncan’s multiple range test (DMRT) at 5% level of probability.  The result obtained from this study indicated that mulch materials and stick staking affect significantly growth parameters of tomato, yield per plant and yield per land area.  The result also, indicated that plot mulch with black polythene performance best in terms of growth and yield and also improved soil physical properties better than either white polythene or organic mulch in the study area. It is therefore recommended that black polyethylene should be used as mulch materials for tomato production. However, better and stable fruit yield of tomato could be obtained with the practice of mulching in combination with staking. It is recommended that mulching should be carried out together with staking for higher fruit yield and black polyethylene should be use as mulch material in the study area.

scholarly journals Combined application of poultry litter biochar and NPK fertilizer improves cabbage yield and soil chemical properties

2021 ◽  
Vol 6 (1) ◽  
pp. 356-368
Author(s):  
Patrick Ofori ◽  
Gideon Asamoah ◽  
Ben Amoah ◽  
Kwaku Osei Adu Agyeman ◽  
Edward Yeboah
Keyword(s):  
Block Design ◽  
Poultry Litter ◽  
Chemical Properties ◽  
Soil Chemical Properties ◽  
Growth And Yield ◽  
Available Phosphorus ◽  
Vegetable Production ◽  
Combined Application ◽  
Poultry Litter Biochar ◽  
Npk Fertilizer

Abstract Low soil fertility is a major problem limiting peri-urban vegetable production in the Kumasi metropolis. This study was conducted to assess the effects of poultry litter biochar (PLB) and NPK fertilizer application on soil chemical properties and the yield of cabbage. Twelve treatments (control, 100% NPK, 50% NPK, 2.5 t ha−1 PLB, 2.5 t ha−1 PLB + 50% NPK, 2.5 t ha−1 PLB + 100% NPK, 5 t ha−1 PLB, 5 t ha−1 PLB + 50% NPK, 5 t ha−1 PLB + 100% NPK, 7.5 t ha−1 PLB, 7.5 t ha−1 PLB + 50% NPK, and 7.5 t ha−1 PLB + 100% NPK) were evaluated under field conditions in a randomized block design with three replications. Combined application of PLB and NPK fertilizer improved the soil chemical properties, growth, and yield of cabbage relative to the control and sole PLB treatments. Application of 5 t ha−1 PLB + 50% NPK increased the soil pH, soil organic carbon, available phosphorus, and cation exchange capacity by 26.6, 41.4, 296, and 78.7%, respectively, relative to the control. Moreover, 5 t ha−1 PLB + 50% NPK increased the cabbage yield by 73% compared with the control. This study concludes that PLB and NPK fertilizers can be applied to improve the soil chemical properties and yield of cabbage.

scholarly journals Rice Husk Dust and NPK Improve Soil Chemical Properties and Growth Response of Jatropha

2021 ◽  
pp. 10-21
Author(s):  
E. O. Azu Donatus ◽  
B. A. Essien ◽  
O. U. Nwanja ◽  
P. E. Nweke
Keyword(s):  
Soil Fertility ◽  
Rice Husk ◽  
Growth Parameters ◽  
Block Design ◽  
Chemical Properties ◽  
Exchange Capacity ◽  
Soil Chemical Properties ◽  
Available Phosphorus ◽  
Southeastern Nigeria ◽  
Exchangeable Acidity

The present study investigated the combined effect of rice husk dust (RHD) (0.1.2.3.4 and 5 ton ha-1) and NPK 10:10:10 fertilizer (0, 1, 2, 3, 4 and 5 ton ha-1) arranged factorially in Randomized Complete Block Design(RCBD)on selected soil fertility indices (pH, organic carbon, organic matter, total nitrogen, available phosphorus, exchangeable bases, exchangeable acidity and effective cation exchange capacity) and growth parameters of Jatropha (number of leaves, plant height, number of branches and stem girth) in an ultisol of southeastern Nigeria. Results showed significant (P<0.05) improvement in all soil chemical properties and growth parameters of plant compared to control which had no treatment. However, the effects varied with treatment levels and interactions. While the effects increased with rate of application, interactions consistently showed superior effect on all parameters studied. Thus, combining rice husk dust (RHD) and NPK may increase the soil fertility and growth of Jatropha. Treatments combination of5tonha-1 RHD and 3tonha-1 NPK and 5tonha-1 RHD and 5tonha-1 NPK relatively gave the most appreciable result in soil chemical properties and growth of Jatropha respectively, thus are recommended.

scholarly journals Linkages among Soil Fertilization Regimes, Chemical Properties and Maize Grains Yield in Humid Tropic

2021 ◽  
Vol 10 (16) ◽  
pp. e366101623558
Author(s):  
Ana Luiza Privado Martins Feitosa ◽  
Glécio Machado Siqueira ◽  
Emanoel Gomes de Moura ◽  
Francisca Ferreira Farias ◽  
Alana das Chagas Ferreira Aguiar
Keyword(s):  
Humic Acid ◽  
Block Design ◽  
Soil Layer ◽  
Chemical Properties ◽  
Principal Component ◽  
Maize Yield ◽  
Northeastern Brazil ◽  
Available Phosphorus ◽  
Soil Fertilization ◽  
Chemical Attributes

We hypothesize that there is a linkage among different soil fertilization regimes, soil chemical attributes and maize grains yield. We aimed to evaluate the relationships between different soil fertilization regimes, soil chemical properties and maize grains yield. The experiment was performed in northeastern Brazil, in a randomized block design, at an area divided into 24 plots with six treatments and four replicates (Nitrogen (N); Leucaena (L); Nitrogen+Leucaena (N+L); Humic Acid+Leucaena (HA+L); Humic Acid+Nitrogen (HA+N) and Humic Acid+Nitrogen+Leucaena (HA+N+L)). Each plot was cropped with maize (Zea mays L.) and the grains yield was estimated. Soil samples were collected at depths of 0–5 cm, 5–10 cm and 10–20 cm. Potential acidity, pH, soil organic carbon (SOC), available phosphorus, exchangeable potassium, calcium and magnesium, cation exchange capacity (CEC), sum of basic cations (SBC) and base saturation (BS) were determined. Principal component analysis (PCA) was used to correlate soil chemical attributes with maize yield. Calcium, magnesium, available P and SBC were related to the maize grains yield in upper soil layer, especially at nitrogen fertilization. This research confirms the hypothesis that there is a linkage between different soil fertilization regimes, soil properties and the maize grains yield.

scholarly journals Improvement of Tea (Camellia sinensis L.) Soil Properties by Growing Different Green Crops

2015 ◽  
Vol 12 (2) ◽  
pp. 34-38 ◽  
Author(s):  
Ashim Kumar Saha ◽  
Apu Biswas ◽  
Abdul Qayyum Khan ◽  
Md. Mohashin Farazi ◽  
Md. Habibur Rahman
Keyword(s):  
Organic Carbon ◽  
Soil Properties ◽  
Total Nitrogen ◽  
Soil Ph ◽  
Nutritional Value ◽  
Soil Health ◽  
Critical Value ◽  
Available Phosphorus ◽  
Organic Carbon Content

Long-term tea cultivation has led to degradation of the soil. Old tea soils require rehabilitation for restoring soil health. Soil rehabilitation by growing different green crops can break the chain of monoculture of tea. An experiment was conducted at The Bangladesh Tea Research Institute (BTRI) Farm during 2008-2011 to find out the efficiency of different green crops on the improvement of soil properties. Four green crops such as Guatemala, Citronella, Mimosa and Calopogonium were grown to develop the nutritional value of the degraded tea soil. Soil samples were collected and analyzed before and at the end of experiment. Soil pH was increased in all four green crops treated plots with the highest increase in Citronella treated plots (from 4.1 to 4.5). Highest content of organic carbon (1.19%) and total nitrogen (0.119%) were found in Mimosa and Calopogonium treated plots, respectively. Concentration of available phosphorus, calcium and magnesium in all green crops treated plots were above the critical values, while available potassium content was above the critical value in Guatemala, Citronella and Mimosa treated plots. Changes in soil pH and available potassium were significant, while changes in organic carbon content, total nitrogen and available calcium were insignificant. Changes in available phosphorus and magnesium were significant. The Agriculturists 2014; 12(2) 34-38

scholarly journals Effect of Tillage System and Organic Matter Management Interactions on Soil Chemical Properties and Biological Activity in a Spring Wheat Short-Time Cultivation

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7451
Author(s):  
Barbara Breza-Boruta ◽  
Karol Kotwica ◽  
Justyna Bauza-Kaszewska
Keyword(s):  
Organic Matter ◽  
Biological Activity ◽  
Organic Carbon ◽  
Spring Wheat ◽  
Chemical Properties ◽  
Soil Samples ◽  
Available Phosphorus ◽  
Organic Carbon Content ◽  
Tillage System ◽  
Short Time

Properly selected tillage methods and management of the available organic matter resources are considered important measures to enable farming in accordance with the principles of sustainable agriculture. Depending on the depth and intensity of cultivation, tillage practices affect soil chemical composition, structure and biological activity. The three-year experiment was performed on the soil under spring wheat (cv. Tybalt) short-time cultivation. The influence of different tillage systems and stubble management on the soil’s chemical and biological parameters was analyzed. Organic carbon content (OC); content of biologically available phosphorus (Pa), potassium (Ka), and magnesium (Mg); content of total nitrogen (TN), mineral nitrogen forms: N-NO3 and N-NH4 were determined in various soil samples. Moreover, the total number of microorganisms (TNM), bacteria (B), actinobacteria (A), fungi (F); soil respiratory activity (SR); and pH in 1 M KCl (pH) were also investigated. The results show that organic matter amendment is of greater influence on soil characteristics than the tillage system applied. Manure application, as well as leaving the straw in the field, resulted in higher amounts of organic carbon and biologically available potassium. A significant increase in the number of soil microorganisms was also observed in soil samples from the experimental plots including this procedure.

scholarly journals PERAKITAN TEKNOLOGI PENGELOLAAN HARA SPESIFIK LOKASI PADI SISTEM GOGO RANCAH DI DESA SEMAWUNG KECAMATAN ANDONG KABUPATEN BOYOLALI

Agric ◽  
2017 ◽  
Vol 28 (1) ◽  
pp. 31
Author(s):  
Andrias ◽  
Suprihati ◽  
Diah Setyorini
Keyword(s):  
Nutrient Management ◽  
Block Design ◽  
Organic Fertilizer ◽  
Panicle Length ◽  
Randomized Block Design ◽  
Cropping Season ◽  
Significant Difference ◽  
Technological Tool ◽  
Npk Fertilizer ◽  
Hill Number

<p>ABSTRACT</p><p>Rainfed ricefield, planted at least for one cropping season in a year, depends heavily on rainfall for its water supply. This land generally is low in fertility as indicated by the limited availability of essential plant nutrients in particular nitrogen (N), phosphorus (P), and potassium (K) as well as organic matter. Its productivity is relatively low with a rather erratic precipitation distribution. In order to overcome fertility issue in rainfed land, it is necessary to conduct an integrated nutrient management; one of which is by implementing location specific nutrient management. This study aims to seek the appropriate nutrient management in rainfed paddy field of Semawung village in the sub-district of Andong of Boyolali regency to be provisioned as a technological tool of location specific nutrient management. Research on nutrient management of gogo rancah system-based paddy production was carried out from October 2014 to January 2015. The field experiment was arranged in a Randomized Block Design involving eight treatments and three replications for each treatment. Treatments were combinations of NPK fertilizer, Organofosfat, and straw-based organic fertilizer. Nutrient management using NPK fertilizer and its combination with Organofosfat or organic fertilizer had very significant effect on plant height and number of stem per hill, significantly affected number of panicle per hill, panicle length, and number of fully-filled grain but did not result in difference of fully filled grain percentage and weight of 1000 grains. There was no significant difference between the treatment of 100% of NPK fertilizer and the combination of 75% of NPK fertilizer with straw-based fertilizer regarding these variables: number of stem per hill, number of panicle per hill, panicle length, number of grain per hill, number and percentage of fully-filled grain, weight of 1000 grains, and weight of fresh grain and milled grain yield. Therefore, the latter treatment is feasible as an option of location-specific nutrient management Semawung village.</p>

scholarly journals Breaking Dormancy and Effects of Shade Level and NPK Fertilizer Rates on Yield of Zingiber zerumbet (L.) Smith (Lempoyang)

Agriculture ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 198 ◽  
Author(s):  
Suzanne Goh ◽  
Thohirah Lee Abdullah ◽  
Siti Hassan ◽  
Johnson Stanslas
Keyword(s):  
Growth Parameters ◽  
Biological Activities ◽  
Chemical Properties ◽  
Dry Weight ◽  
Growth And Yield ◽  
High Yield ◽  
Significant Interaction Effect ◽  
Zingiber Zerumbet ◽  
Npk Fertilizer ◽  
Fertilizer Rates

Zingiber zerumbet (L.) Smith, known as Lempoyang in Malaysia, belongs to the family Zingiberaceae. Previous studies on Lempoyang mainly focused on the chemical properties and biological activities of the rhizome extracts of this plant. Despite the tremendous demand for the rhizomes of Z. zerumbet, there is a lack of information on cultivation practices and a scarcity of planting materials. By using the pre-soaked technique, the challenges posed by Z. zerumbet dormancy can be overcome, obtaining good quality and uniform planting material throughout the year. Besides that, it is also crucial to determine the optimum shade level and NPK fertilizer rates to obtain a high yield and good quality rhizomes of Lempoyang. Six concentrations of 6-benzylaminopurine (BAP, 0, 50, 100, 150, 200, and 250 mg/L) and ethephon (0, 150, 300, 450, 600, and 750 mg/L) were tested to evaluate their effects on breaking rhizome dormancy. Three different shade levels (full sun, 30%, and 50% shade levels) and four combinations of Nitrogen (N), phosphorus (P), and potassium (K) (NPK) fertilizer at different rates were evaluated to study their effects on plant growth and yield performance. The results showed that BAP at 100 mg/L and ethephon at 300 mg/L performed better than the other compound concentrations tested in promoting the breaking of bud dormancy. A significant interaction effect was observed between shade levels and NPK fertilizer rates in all the growth parameters examined, except for the number of tillers per plant. Plants grown under 30% shade with NPK 4 produced the highest rhizome fresh weight, dry weight, and yield, but plants grown under 50% shade with NPK 4 showed the highest plant height and number of tillers per plant.

scholarly journals Physical and chemical properties of selected soils from the surroundings of the Magura National Park (southern Poland) / Właściwości fizykochemiczne i chemiczne wybranych gleb z otoczenia Magurskiego Parku Narodowego

2015 ◽  
Vol 66 (1) ◽  
pp. 36-44 ◽  
Author(s):  
Adam Szewczyk ◽  
Janina Kaniuczak ◽  
Edmund Hajduk ◽  
Renata Knap
Keyword(s):  
National Park ◽  
Chemical Properties ◽  
Base Cations ◽  
Biogenic Elements ◽  
Phosphorus Concentration ◽  
Available Phosphorus ◽  
Soil Profiles ◽  
Organic Carbon Content ◽  
Silty Clay ◽  
And Chemical Properties

Abstract The aim of the study was to investigate the basic physicochemical and chemical properties of six soil profiles located in the surrounding of the Magura National Park (S Poland). The type of agricultural use and terrain relief were the main criteria for choosing the soil profiles. The research identified the following types or sub-types of soils: Eutric Gleysols, Dystric Cambisols, Eutric Cambisols, Gleyic Luvisols. The analyzed soils were characterized by particle size distribution of a silty clay or silt. They were usually strongly acidified as evidenced by low pH (in 1M KCl, values ranged from 3.8 to 5.8), high values of hydrolytic acidity (from 0.8 up to 10 cmol(+)·kg-1) and exchangeable acidity (from 0.05 to 4.05 cmol(+)·kg-1), as well as remarkable concentration of exchangeable aluminum (from 0 to 3.96 cmol(+)·kg-1). The organic carbon content in studied profiles did not exceed (except from gley soil in profile ) 30 g·kg-1 and it decreased along with the depth to several g·kg-1 in parent rock. These soils were characterized by not very high content of total nitrogen (from 0.3 to 9.39 g·kg-1) and low available phosphorus concentration (from 3.5 to 90.3 mg P2O5·kg-1). Contents of available potassium (from 82 to 570 mg K2O·kg-1) and magnesium (from 33 to 412 mg Mg·kg-1) allow for classifying the profiles studied as soils moderately or highly abundant in K and Mg. The highest levels of biogenic elements were determined in surface horizons. Studied soils were characterized by high total sorption capacity (T) - from 7.04 to 63.4 cmol(+)·kg-1. Sum of base cations (S) reached values from 3.01 to 61.2 cmol(+)·kg-1, which resulted in high base saturation (V) (maximum over 96%). The base saturations in profiles of the soils increased along with depth.

scholarly journals Some Correlation Coefficients of Maize under Soil-application of Pendimethalin in Mubi and Gombe Ecologies of Nigeria

2020 ◽  
Author(s):  
I. J. Dantata ◽  
E. A. Shittu ◽  
H. J. Philip ◽  
M. Sani
Keyword(s):  
Growth Rate ◽  
Grain Yield ◽  
Sea Level ◽  
Total Nitrogen ◽  
Chemical Properties ◽  
Growth And Yield ◽  
Available Phosphorus ◽  
Wet Season ◽  
Area Index ◽  
Yield Attributes

Field experiment was carried out during the wet season of 2012 at the Teaching and Research Farm of Faculty of Agriculture, Adamawa State University, Mubi (Lat.10° 15II N and Long.13° 16II E, altitude of 696 m above sea level) and a Community based Demonstration Farm in Gombe (Lat.11° 30” N and Long.10° 20” E, altitude of 340 m above sea level). Both locations were situated in the Northern Guinea Savanna agro-ecological zone of Nigeria. The study was carried out to determine the level of correlation between weed parameters, growth and yield attributes of maize as affected by pendimethalin application. Treatments which consisted of six different rates of pendimethalin (1.0, 2.0, 3.0, 4.0, 5.0, 6.0kg a.i.ha-1) + two control checks (weed free and weedy check) were placed in the main plots as main treatment while maize cultivar SAMMAZ 17 was placed in the sub-plots as sub-treatments in a split plot design and replicated three times. Pendimethalin was pre-emergence- applied a day after sowing (DAS). Weed free check plots (control) were kept weed free by regular weeding. Similarly, all agronomic practices were adequately carried out except those under study. Data collected on weed cover score (WCS), weed fresh weight (WFW), weed dry weight (WDW), days to 50% emergence (D50E), crop injury score (CIS), crop vigour score (CVS), establishment count (EC), plant height (PH), leaf area index (LAI), crop growth rate (CGR), relative growth rate (RGR), days to 50% tasseling (D50T), 1000 grain weights (1GWTs) and grain yield (GY) were analyzed using Minitab Version 11 Statistical Software. Results revealed that WCS was significantly higher and strongly correlated with WFW, WDW but was strong and negatively associated with GY of maize in both Mubi and Gombe. D50E, D50T and LAI were positive but contributed weakly to the GY of maize in Mubi. Similarly, D50E, D50T, PH and LAI had same pattern of behavior as the former in Gombe. EC was negative and also contributed weakly to the grain yield of maize in both locations. PH, CVS, CGR, 1GWTs were positive and strongly associated with GY of maize in Mubi. The same trend was also observed for all parameters except PH which though positive it was weakly associated to the final GY of maize in Gombe. Pendimethalin did not posed any significant effect on the post- physico-chemical properties of the soils at the two experimental sites, except in soil-pH, organic carbon, available phosphorus, total nitrogen, magnesium, potassium and sodium in Mubi and available phosphorus, total nitrogen, Calcium, Magnesium and Potassium in Gombe. These soil properties were significantly influenced by rates of soil applied Pendimethalin compared to the control checks.

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