scholarly journals SITES AND SAMPLING TOOLS IN THE SOIL FERTILITY EVALUATION OF COFFEE PLANTS IN PRODUCTION

2019 ◽  
Vol 14 (3) ◽  
pp. 407
Author(s):  
José Ricardo Mantovani ◽  
José Antônio Lima ◽  
Ciro Pozzi Garcia ◽  
Tiago Teruel Rezende

In soil sampling, the collection site and the tool used may induce errors that can compromise the results of the chemical analysis and, consequently, the definition of corrective and fertilizer doses. The objective in this study was to evaluate soil sampling sites and tools in a coffee growing area. The experiment was carried out in a field in the municipality of Alfenas-MG, in a 35-year coffee field. A randomized block design was used in a 3 x 5 factorial scheme and 4 replications, totaling 60 experimental units. The treatments consisted of 3 sampling sites: in the fertilizer strip (located in the projection of the plant canopy); between rows; and in the total area, with 1/3 of the samples collected under the canopy and close to the plant stem, 1/3 in the canopy projection and 1/3 collected between rows; and 5 sampling tools: Dutch auger; screw auger; probe; hoe and drill. Soil samples were collected at a depth of 0 to 0.2 m, and each composite sample was obtained by assembling and mixing 20 single samples. At each sampling point, an area of 2m<sup>2</sup> was delimited, in which simple samples were collected in all the evaluated places and with all the tools used. The following parameters were determined in the soil samples: pH in CaCl2; potential acidity (H+Al); organic matter; P, extracted by Mehlich; K<sup>+</sup>, Ca<sup>2+</sup>, Mg<sup>2+</sup> and base saturation. In a coffee-growing area, he fertilizer strip (canopy projection) has topsoil with higher acidity and lower contents of organic matter and nutrients P, K<sup>+</sup>, Ca<sup>2+</sup> and Mg<sup>2+</sup> than between rows. The tools used for soil sampling do not influence the results of soil chemical analysis in the coffee-growing area.

2018 ◽  
Vol 3 (02) ◽  
pp. 108-115
Author(s):  
S. P. Vista ◽  
T. B. Ghimire ◽  
T. S. Rai ◽  
B. S. Kutu ◽  
B. K. Karna

Potato is a staple food crop in high hills and mountains and a major vegetable throughout the country and one of the most important cash generating crops in Nepal. With the efforts undertaken by research and extension sectors, its productivity has significantly increased in last twenty years. However, this is not sufficient for increasing population of the country. Considering its potentiality for income, employment, industrial products, export and processing, appropriate technologies are urgent.Soil fertility evaluation is the most basic decision making tool for the sustainable soil nutrient management. Soil fertility studies and mapping is an effective way to diagnose soil status and recommend as per the need of the nutrient to particular crop in the area. This research aims to assess and prepare soil nutrient map of potato super zone, Kavrepalanchowk in Nepal. The specific objectives of the research were to assess soil texture, pH and organic matter status and simultaneously prepare soil fertility map of the potato super zone. A total of 202 soil samples were collected and nutrients were analyzed using standard procedure in the soil laboratory. Composite soil samples were collected from 6 to 10 different spots of the area at 0-20 cm depth by using soil auger. The GPS location of each soil sampling point was noted. The soil sampling point of each zone was determined by studying various aspects (area, slope, colour, texture, etc.) of the study area. Based on the nutrient status, nutrient maps were prepared and presented. Soil fertility maps were prepared by observing the critical nutrients required for the specific crops and by giving those nutrients certain ranking based on the nutrients role for the crop. The soil of Potato super zone was mostly found to be silty loam, moderately acidic (pH 5.9), medium in organic matter content (2.67%) and total nitrogen (0.13%), high in available phosphorus content (56 kg/ha) and available potassium (356kg/ha). There is also sandy loam, loam and silty clay loam types of soil in the area. Soil fertility maps were prepared by setting criteria based on nutrient status that were tested in the laboratory and on the basis of nutrients that are critical for each crops of the super zones. Vegetable super zone soil was found having medium (50%) and high (30%) fertility status. Based on the soil analysis report, it could be concluded that the soils of potato super zone is fair enough for cultivating potato crop at the moment.


2020 ◽  
pp. 1-7
Author(s):  
Md. Safiqul Moula ◽  
Rafeza Begum ◽  
Manik C. Roy ◽  
Md. Nazmul Islam ◽  
Md. Imran U. Sarkar

Aims: An experiment to quantify the changes in soil fertility in terms of available nutrient content was carried out between 1995 to 2016. Study Design: The design of the study was a Randomized Complete Block Design (RCBD). Place and Duration of Study: Bheramara upazilla of Kuahtia district in Bangladesh; between the years 1995 (considered as base line database) to 2016. Methodology: Soil Resource Development Institute (SRDI) conducted semi-detailed soil survey at Bheramara upazilla of Kushtia district in 1995 and collected 18 soil samples and analyzed in the laboratory for chemical parameters. These data considered as baseline information for the present study (2016) and 18 soil samples were collected from the same or adjacent sampling point in 1995. Land use, organic matter application, crop yield and fertilizer use related information were also collected during the survey. Chemical analysis was performed in the regional laboratory, SRDI, Kushtia by following standard methods. Results: Results revealed that soil pH and boron decreased significantly in most of the soil series. Organic Matter in all the series except Ganges silt significantly increased over the year. The variation in potassium content over the year was insignificant in all soil series except Sara series. In some soil series phosphorus and sulfur either increased or decreased over the year while soil zinc content did not varied significantly over the year. Conclusion: Soil nutrient data of the study area revealed that most of the parameters assessed showed positive direction towards fertility development due to agricultural knowledge development and advance soil and fertilizer management practices.


Author(s):  
Waylson Zancanella Quartezani ◽  
Ramon Amaro de Sales ◽  
Talita Aparecida Pletsch ◽  
Sávio da Silva Berilli ◽  
Euzileni Mantoanelli ◽  
...  

Brazil is the largest producer of Conilon coffee (Coffea canephora) in the world. The use of organic matter in substrates for clonal plant propagation is essential to promote favorable conditions for the development of both shoots and roots. Therefore, it is important for production systems to test new sources of organic matter such as solid urban waste. The objective of this study was to evaluate the effect of different proportions of composted urban waste on the propagation of Conilon coffee plants. The experiment was arranged in a randomized block design, with five replications and seven treatments. The treatments consisted of different proportions of composted urban waste (0, 15, 30, 50, 70, 90 and 100%), and biometric and quality characteristics of the clonal plants were evaluated. The results showed that proportions of composted urban waste higher than 50% added to the soil substrate promoted the highest plant growth rates, and even the lowest proportion of organic matter (15%) showed better results for all characteristics than the treatment without organic matter.


Author(s):  
Thâmara F. M. Cavalcanti ◽  
Geraldo R. Zuba ◽  
Regynaldo A. Sampaio ◽  
João P. Carneiro ◽  
Ely S. A. de Oliveira ◽  
...  

<title>ABSTRACT</title><p>The aim of this study was to evaluate the yield and nutrition of castor bean in response to fertilization with sewage sludge and potassium (K) and magnesium (Mg) sulphate. The experiment was carried out from January to July 2011. The treatments, in a randomized block design with three replicates, in a Nitosol, corresponded to a factorial scheme (2 x 4 +1): two doses of K and Mg sulphate combined with four doses of sewage sludge (0, 2.60, 5.20 and 10.40 t ha<sup>-1</sup>, dry basis), applied based on its nitrogen (N) content and the N requirement for the crop and an additional treatment with NPK. The castor bean grain yield fertilized with sewage sludge did not differ from conventional fertilization, with the maximum value achieved at a dose of 7.5 t ha<sup>-1</sup> of sewage sludge. The fertilization with sewage sludge increased zinc and copper levels in the soil to values close to or higher than those in conventional fertilization, without any influence on the concentrations in the leaf. Fertilization with K and Mg sulphate increased the levels of these cations in the soil without affecting the concentrations in the leaves. The fertilization with sewage sludge increased the contents of organic matter, sulfur, zinc, iron, copper and boron in the soil, and manganese and boron in castor bean leaves.</p>


Author(s):  
Gleice A. de Assis ◽  
Myriane S. Scalco ◽  
Rubens J. Guimarães ◽  
Alberto Colombo ◽  
Anderson W. Dominghetti ◽  
...  

Irrigation associated to reduction on planting spaces between rows and between coffee plants has been a featured practice in coffee cultivation. The objective of the present study was to assess, over a period of five consecutive years, influence of different irrigation management regimes and planting densities on growth and bean yield of Coffea arabica L.. The treatments consisted of four irrigation regimes: climatologic water balance, irrigation when the soil water tension reached values close to 20 and 60 kPa; and a control that was not irrigated. The treatments were distributed randomly in five planting densities: 2,500, 3,333, 5,000, 10,000 and 20,000 plants ha-1. A split-plot in randomized block design was used with four replications. Irrigation promoted better growth of coffee plants and increased yield that varied in function of the plant density per area. For densities from 10,000 to 20,000 plants ha-1, regardless of the used irrigation management, mean yield increases were over 49.6% compared to the non-irrigated crop.


1985 ◽  
Vol 36 (3) ◽  
pp. 483 ◽  
Author(s):  
JK Egan ◽  
PT Doyle

Six mature Merino sheep received three treatments in a randomized block design experiment. The treatments were: chopped oaten hay diet at 90% of ad libitum intake without urea (L); the ciet offered at the same level as for L with urea infused into the rumen at 11.5 g kg-1 dry matter intake (LU); and the diet offered at 90% of the ad libitum intake achieved with urea infused at 11.5 g kg-1 dry matter intake (HU). Sheep given HU consumed 37% more (P < 0.01) organic matter (OM) than those fed L or LU, but the apparent digestibility of OM did not vary (59.2-61.8%) between treatments. The addit onal food consumption was associated with c. 20% increase (P < 0.05) in the weight of OM in the reticulorumen and significantly higher (by 10-35%; P < 0.05) fractional outflow rates of most dietary and microbial constituents of digesta. The fractional digestion rate of potentially digestible plant cell walls was not affected by urea, but the flow of microbial non-ammonia nitrogen from the abomasum was enhanced (L, 7.0; LU, 8.2; HU, 12.5 g day-1; P < 0.05). The results of this study suggest that the stimulatory effect of urea upon food intake was associated with the provision of additional microbial protein for digestion in the intestines, rather than changes in the rate or extent of organic matter fermentation in the reticulorumen.


Author(s):  
Yogi Ramdani, Erwanto, Farida Fathul, dan Liman

This study aimed to investigate the effect of adding multi nutrient sauce to rations on the digestibility of dry matter and organic matter in sheep. This research was conducted in May--July 2019 in Kebagusan Village, Gedong Tataan District, Pesawaran Regency. Analysis of feed ingredients and feces was carried out at the Animal Nutrition and Feed Laboratory, Department of Animal Husbandry, Faculty of Agriculture, University of Lampung. This research was conducted experimentally using the Randomized Block Design (RBD) method. Sheep were divided into six groups based on body weight, namely group 1 (11,18--13,18 kg), group 2 (13,97--14,13 kg), group 3 (14,31--14,51 kg), group 4 (14,89--15,91 kg), group 5 (16,35--16,66 kg), and group 6 (17,15--17,77 kg). Each group consisted of 3 sheep. Treatment given were R0: basal ration formulated by farmer (forage silage + cassava byproduct), R1: R0 + 5% multi nutrient sauce, R2: R0 + 10% multi nutrient sauce. The results showed that the addition of 10% multi nutrient sauce was the best treatment that could improve the digestibility of dry matter and organic matter in sheep.   Key word : Multi nutrient sauce, Dry matter digestibility, Digestibility of organic matter, Sheep.


Author(s):  
José R. Mantovani ◽  
Jéssica da S. Bernardes ◽  
Paulo R. C. Landgraf

ABSTRACT In biodiesel production, vegetable press cake is obtained as waste, and a suitable destination for jatropha press cake would be the use in agriculture as organic fertilizer. This study aimed to evaluate the effect of jatropha press cake on soil fertility attributes and on lettuce production and accumulation of nutrients in the shoots. The experiment was conducted in pots in a greenhouse, in a randomized block design with eight treatments and five replicates. The treatments consisted of doses of jatropha press cake equivalent to 0, 0.5, 1.0, 2.0, 4.0, 8.0, 16.0 and 32.0 t ha-1. Portions of 5.5 dm3 of soil received limestone, phosphate fertilizer and the doses of jatropha press cake, and remained incubated for 30 days. After incubation, soil samples were collected, each pot received one lettuce seedling and the experiment was carried out for 45 days. The organic fertilization with jatropha press cake increased the contents of nutrients in the soil, especially K+, but caused increment in soil acidity and electrical conductivity. The use of jatropha press cake as organic fertilizer decreased lettuce production and accumulation of nutrients in the shoots.


2018 ◽  
Vol 5 (1) ◽  
pp. 136-146
Author(s):  
Supriadi Hartanto ◽  
Irsal ◽  
Asil Barus

This research was conducted to determine the growth of red sugarcane seedling on pruning and frequency of watering. This research was conducted in the research field of Faculty of Agriculture University of Sumatera Utara (± 25 m asl) from June-October 2017 using Factorial Randomized Block Design with three replications. The first factor was pruning (control, 1, and 2 months/plant) as well as the second factor was the frequency of watering (1, 3, 5, and 7 days/plants). The variable observed were plant height, a number of leaves, stem diameter, a number of the tiller, shoot wet weight, root wet weight, and shoot-root ratio. The results showed that the frequency of watering treatment had a significant effect on the number of a leaf (4,6,8,10 and 12 weeks after plant), stem diameter (4,6,8,10 and 12 weeks after plant), shoot wet weight, and root wet weight. Pruning treatment had no significant effect on all variables observed. The interaction of both has no significant effect on all variables observed.


GANEC SWARA ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 544
Author(s):  
ANAK AGUNG GEDE PUTRA ◽  
PANDE GEDE GUNAMANTA ◽  
KETUT TURAINI INDRA WINTEN

The study aimed to determine the effect of organic planting media and the position of seed planting on the growth of Robusta coffee seedlings. The study is conducted at the Tabanan Agrotechnology Study Program, Tabanan University, which conducted from July 2019 to September 2019. The treatments are arranged in factorial in a randomized block design (RBD). Two treatments examined in this study were the doses of organic matter in the growing media (0g, 150 g, 300 g, 450 g) and seed position (prone position, upside down, tilted position). The results show that the interaction between organic planting media (soil + coffee leaf compost) and seed planting position did not significantly affect all coffee seedlings growth variables. The dose of organic compost in the growing media has a very significant effect on all growth variables except when growing and the percentage of growth. The dosing of 450 g organic matter gave the highest root fresh weight, fresh stem weight and fresh leaf weight (1.00 g, 2.97 g and 8.64 g respectively) and oven dry weight for the three variables (respectively 0.39 g, 0.55 g and 1.36 g). Seed planting position has no significant effect on all observed variables, but there is The tendency of planting position with the prone on average gives better growth compared to other positions.


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