scholarly journals Performance of Cassava (Manihot esculenta Crantz) Varieties under Different Soil Amendments

2019 ◽  
pp. 1-7
Author(s):  
Kwadwo Gyasi Santo ◽  
Joseph Sarkodie-Addo
Keyword(s):  
Starch Content ◽  
Block Design ◽  
Organic Fertilizer ◽  
Poultry Manure ◽  
Fertilizer Application ◽  
Nitrogen And Phosphorus ◽  
Manihot Esculenta Crantz ◽  
Combined Application ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

Studies were carried out at Offinso in the Ashanti Region of Ghana to assess root quality of cassava grown with application of poultry manure and NPK 15-15-15 and NPK 23-10-10 fertilizers. The experimental design was a 2 x 6 factorial, arranged in a Randomized Complete Block Design (RCBD) with three replications. The treatments consisted of two cassava varieties in combination with five inorganic and/or organic fertilizer formulations and a control with no fertilizer. The parameters measured were starch content, poundability, nitrogen, phosphorus and potassium contents of cassava roots. The data collected were subjected to analysis of variance using the Genstat Statistical package. The results of the study indicated that Bankyehemaa produced higher starch content (29.86%) than the Nkabom variety. Fertilizer application increased starch content with the combined application of poultry manure and NPK 23-10-10 treatment recording the highest treatment effect (30.40%). Both the organic and inorganic fertilizers applied increased starch content of cassava roots. Poundability was not also affected by both variety and fertilizer application. However, roots treated with NPK 15-15-15 only and poultry manure alone were very poundable (3.0). Variety significantly affected only nitrogen and phosphorus contents of cassava roots. Bankyehemaa had higher content (0.72%) of nitrogen than Nkabom, while Nkabom recorded higher content (1.05%) of phosphorus than Bankyehemaa. Generally, application of fertilizer significantly affected root contents of nitrogen, phosphorus and potassium. However, potassium and phosphorus contents were reduced by the organic fertilizer (poultry manure). The NPK 15-15-15 treatment produced higher potassium (9.37%) and phosphorus (1.36%) contents of roots than the other treatments. The highest nitrogen content of roots (0.78%) was observed in the combined application of poultry manure and NPK 23-10-10 treatment.

scholarly journals EFFECT OF FULZYME FERTILIZER, RICE RESIDUES AND DAP ON AVAILABLE OF SOME NUTRIENTS FOR THE SOIL OF BUDDED APRICOT SEEDLINGS PRUNUS ARMENIACA L. CV. "ZAGHINIA"

2020 ◽  
Keyword(s):  
Block Design ◽  
Organic Fertilizer ◽  
Prunus Armeniaca ◽  
College Of Agriculture ◽  
Available Nitrogen ◽  
Soil Available Nitrogen ◽  
Prunus Armeniaca L ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus ◽  
Rice Residues

The study was conducted in the nursery of Hort. Dept., College of Agriculture and Forestry, Mosul University, Iraq, during 2018 season to study the response of budded "Zaghinia" apricot on seedlings rootstock to bio, organic and chemical fertilizers, and their effects on seedling growth. The studied factors were as follows: Bio fertilizer Fulzyme (0,1and 2 g. seedling-1 ), organic fertilizer (Rice residue) (0, 1 and 2 kg. seedling-1 ) and DAP fertilizers (0, 5 and 10 g. seedling-1 ). The study was performed by using split-split plots within factorial experiment in randomized complete block design (RCBD), with 3 factors and 3 replicates, by using 6 seedlings for each treatment. Treatment means were compared by using Duncan multiple levels at 5% p. the most important results obtained were as follows: 1 and 2 gm.seedling-1 of bio fertilizer (Fulzyme) and Chemical fertilizer (DAP) at the levels 5 and 10 g. seedling-1 affected significantly resulted in a significant increase in soil available nitrogen, while the addition of organic fertilizer (rice residues) and for both levels 1 and 2 kg. Seedling-1 gave a significant increase in nitrogen, phosphorus, ready-made potassium and pH of the seedling soil, and the bilateral interaction had a significant role in the growth of seedlings, especially the treatment of the interaction between the fertilizer (Fulzym) and organic fertilizer (Rice residues), which have a significant effect in giving the best results in available nitrogen, phosphorus and potassium in the soil, and the triple interference also gave a significant increase in all studied traits.

PENGARUH ASAM FULVAT TERHADAP PERTUMBUHAN, PRODUKTIVITAS, DAN MUTU RIMPANG JAHE

2020 ◽  
Vol 7 (1) ◽  
pp. 6
Author(s):  
MUHAMAD DJAZULI ◽  
IRENG DARWATI ◽  
ROSITA SMD
Keyword(s):  
Fulvic Acid ◽  
Starch Content ◽  
Block Design ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Randomized Block Design ◽  
Application Frequency ◽  
Optimal Effect

Fulvic acid is an extraction product of humus which is very potential for supplement fertilizer and able to reduce either inorganic or organic fertilizer application. The information about fulvic acid application as supplement fertilizer on ginger in Indonesia is still limited. The objective of the study was lo find oul the efect of fulvic acid as supplement fertilizer on the growth, productivity and quality of young ginger. A green house trial was conducted from July lo November 1996. Five levels of fulvic acid concentration, 0, 2.5, 5, 7.5, and 10% were sprayed every week from 4 to 1 5 weeks ater planting (WAP). A randomized block design was used with five replicates. The results indicated that the growth of plant height and number of tiller of ginger increased rapidly al 8 WAP, then il became slowly from 12 lo 1 5 WAP Application 10% of fulvic acid was able to increase vegetative parts 99.6%, fresh and dry weight of rhizome 89 and 125% respectively, and starch content of rhizome 22.6%. To find oul of the optimal effect of fulvic acid on productivity and quality of ginger, a further research using higher level and application frequency of fulvic acid as an extract product from several humus types in Indonesia is needed.

scholarly journals Agro-Morphological Traits And Root Yield Of An Improved Cassava (Manihot Esculenta Crantz) Variety Under Nutrient-Applied Conditions In Offinso Municipality Of Ghana

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
Kwadwo Gyasi Santo ◽  
Abdulai Muntala ◽  
Patrick Mawuenyegan Norshie
Keyword(s):  
Dry Matter ◽  
Block Design ◽  
Poultry Manure ◽  
Field Studies ◽  
Fertilizer Application ◽  
Mineral Fertilizers ◽  
Dry Matter Yield ◽  
Root Yield ◽  
Manihot Esculenta Crantz ◽  
Number Of Stems

Field studies were undertaken at Offinso in the Ashanti Region of Ghana during the 2015/2016 growing season to evaluate growth, root and dry matter yields of an improved cassava variety (Bankyehemaa) treated with poultry manure (PM), NPK 15-15-15 and NPK 23-10-10 fertilizers. The treatment structure was a 3 x 4 factorial, laid out in a Randomized Complete Block Design with three replications. Three levels of fertilizer (600 kg/ha NPK 15-15-15, 600 kg/ha NPK 23-10-10 and 2 t/ha PM) were applied at 6, 8, 10 and 12 weeks after planting. The parameters measured included plant height, fresh and dry shoot weights, number of stems per plant, stem girth, fresh and dry root yields and total dry matter yield. The data collected were subjected to analysis of variance using the Genstat Statistical package. Main effects of fertilizer type and time of fertilizer application on most of the parameters measured were not significant. However, the interaction effects of the two factors were significant in all the parameters measured. Vegetative growth of Bankyehemaa increased when mineral fertilizers were applied earlier than 12 weeks after planting. The highest fresh and dry shoot weights and the biggest stems were produced when NPK 15-15-15 fertilizer was applied at 6 weeks after planting. Plants treated with NPK 15-15-15 fertilizer at 10 weeks after planting were the tallest, while those treated with NPK 23-10-10 fertilizer at 8 weeks after planting produced the highest number of stems per plant. Application of poultry manure at 6 weeks after planting produced the highest fresh cassava root yield of 28.10 t/ha. The highest dry matter yield of 19.80 t/ha was obtained when poultry manure was applied at 12 weeks after planting.

scholarly journals Soil Quality Engineering Using Vermicompost and its Effect on the Corn (Zea mays L.) Production in Coastal Area

2020 ◽  
Vol 25 (3) ◽  
pp. 127
Author(s):  
Riwandi Amir Diny ◽  
Hasanudin Hasanudin ◽  
Herry Gusmara ◽  
Anandyawati Anandyawati
Keyword(s):  
Soil Quality ◽  
Zea Mays L ◽  
Soil Analysis ◽  
Block Design ◽  
Organic Fertilizer ◽  
Corn Cob ◽  
Highest Weight ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

The low quality of Entisol is caused by low availability of nitrogen, phosphorus, and potassium as well as low soil pH, so the addition of vermicompost is necessary. The purpose of this study was to determine the effect of vermicompost application on soil quality and to obtain the highest vermicompost dosage on the availability of nutrients such as N, P, K, and the yield of corn. The field experiment used a Randomized Completely Block Design (RCBD) with 7 dosages of vermicompost and three replications. The treatments were V0 = 0; V1 = 5; V2 = 10; V3 = 15; V4 = 20; V5 = 25; V6 = 30 Mg ha-1. Variables observed consisted of 1) initial soil and vermicompost characterization analysis, 2) soil analysis and N, P, and K content in leaves, and yield of corn. The results showed that Entisol was classified as low quality; however, vermicompost quality complied with the requirements of quality organic fertilizer. The experiment also indicated that the highest pH of Entisol (5.31) and K content in corn leaves (2.12%) were obtained at a dose of vermicompost 25 Mg ha-1. Meanwhile, the highest weight of husked corn cobs (415.55 g plant-1) and weight of unhusked corn cob (351.11 g plant-1) were obtained at a vermicompost dose of 15 Mg ha-1.

scholarly journals Effect of Nitrogen, Phosphorus and Variety on Physiological Indices and Nutrient Composition of Livingstone Potato (Plectranthus esculentus N.E.Br.) in Gombe, Northern Guinea Savannah, Nigeria

2021 ◽  
pp. 180-188
Author(s):  
E. D. Elemi ◽  
P. O. Ukatu ◽  
G. F. Uwak ◽  
L. J. Agah
Keyword(s):  
Harvest Index ◽  
Starch Content ◽  
Block Design ◽  
High Yield ◽  
Dry Matter Accumulation ◽  
Nitrogen And Phosphorus ◽  
Genetic Trait ◽  
Physiological Indices ◽  
Four Levels ◽  
Nitrogen Phosphorus

Plectranthus esculentus N.E.Br. locally known as “rizga” is an important indigenous tuber crop in Nigeria which is currently endangered. One major factor that causes disappearance of this species, is the lower agronomic recommendations developed for growers and lack of information about nutrient contents leading to loss of interest in its cultivation. A field experiment was therefore conducted during the 2016 and 2017 rainy seasons to determine the effect of nitrogen, phosphorus and variety on physiological indices as an attempt to conserve and evaluate the potential of the crop in food security, source of income and its adaptation in the Northern Guinea Savannah of Nigeria. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Treatments consisted four levels of nitrogen and phosphorus (­0, 60, 90 and 120 kg/ha), respectively and two varieties (vat Riyom and vat Loang’at). Results from analysis of variance showed that nitrogen and phosphorus applied at 90 kg/ha significantly produced higher physiological indices in both years. Beyond this rate, there was a decline in physiological indices resulting in decrease in starch content and dry matter accumulation. Harvest index indicated a positive relationship between the proportion of the biological yield and nutrient levels. Although, varietal difference was not significant on harvest index. This is an indication that HI is purely a genetic trait as affected by environmental factors. It was therefore concluded that, for high yield of livingstone potato, soils should be treated with a moderate application rate of 90 kg/ha nitrogen and phosphorus for enhanced physiological indices which are measures of growth and productivity per unit area of land in the Northern Guinea Savanna of Nigeria.

scholarly journals Response of T. Aman Rice (Oryza sativa L.) to S, Mg, Zn, B, Mo and Organic Amendments in Tista Meander Floodplain Soil

2010 ◽  
pp. 14-19
Author(s):  
GKM Mustafizur Rahman ◽  
R Ashrafi ◽  
MB Hossain ◽  
ML Rahman
Keyword(s):  
Oryza Sativa ◽  
Field Experiment ◽  
Block Design ◽  
Poultry Manure ◽  
Organic Amendments ◽  
Control Plot ◽  
Floodplain Soil ◽  
Randomized Complete Block Design ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

A field experiment was conducted at the BINA sub-station of Tajhat, Rangpur in the Tista Meander Floodplain soil during aman season 2003 to study the response of T. aman rice to S, Mg, Zn, B, Mo and organic amendments. The experiment was laid-out in a randomized complete block design with nine treatments is with three replications as T1: complete (S + Mg + Zn + B + Mo), T2: complete–S, T3: complete–Mg, T4: complete–Zn, T5: complete–B, T6: complete–Mo, T7: cowdung @ 5 t/ha, T8: poultry manure @ 5 t/ha and T9: control. Nitrogen, phosphorus and potassium were applied in recommended doses as basal. The highest grain (3927 kg/ha) and straw (4472 kg/ha) yields were recorded with the application of poultry manure, followed by cowdung and complete (S+Mg+Zn+B+Mo) treatment. The lowest yield was recorded in the control plot. The overall results indicate that application of organic amendments with NPK gave satisfactory yield of T. aman rice in the Tista Meander Floodplain Soil.

scholarly journals Selected Macronutrients Uptake by Sweet Corn under Different Rates Liquid Organic Fertilizer in Closed Agriculture System

2017 ◽  
Author(s):  
Zainal Muktamar ◽  
Fahrurrozi Fahrurrozi ◽  
Dwatmadji Dwatmadji ◽  
Nanik Setyowati ◽  
Sigit Sudjatmiko ◽  
...  
Keyword(s):  
Nitrogen Uptake ◽  
Sweet Corn ◽  
Foliar Application ◽  
Block Design ◽  
Organic Fertilizer ◽  
Research Station ◽  
Treatment Combination ◽  
System P ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

In the last few years, soil deterioration due to excessive application of synthetic agrochemical has become growing concern. Use of organic fertilizer is believed to be able to enhance soil quality. The objective of this experiment was to determine nitrogen, phosphorus, and potassium uptakes by sweet corn as affected by local based liquid organic fertilizer (LOF) under closed agriculture system. The experiment was conducted in Closed Agriculture Production System (CAPS) Research Station in Air Duku Village, Bengkulu, Indonesia from March to June 2015, employing Randomized Completely Block Design with 2 factors. The first factor was 3 sweet corn genotypes, i.e. Talenta, Jambore, and Asian Honey and the second factor was 5 rates of LOF, i.e. 0, 25, 50, 75, and 100 mg l-1, respectively. Each treatment combination was replicated 3 times. Foliar application of LOF was carried out every week at 2-8 weeks after planting (WAP) with total volume of 600 ml per plant. Sweet corn leaves were sampled at the beginning of tassel emergence. The experiment revealed that sweet corn genotype significantly influenced the uptake of nitrogen, but not phosphorus and potassium. It was observed that Asian Honey genotype absorbed highest nitrogen as compared to other genotypes. In addition, increase in rates of LOF significantly raised nitrogen uptake by sweet corn, but not phosphorus and potassium.

scholarly journals Effects of reduced application of special organic fertilizers on tea production

2021 ◽  
pp. 939-945
Author(s):  
Jinbao Liu ◽  
Minghui Jin ◽  
Zhongan Mao
Keyword(s):  
Organic Fertilizer ◽  
Economic Benefits ◽  
Organic Fertilizers ◽  
Treatment Results ◽  
Yield Increase ◽  
Combined Application ◽  
Tea Production ◽  
Phosphorus And Potassium ◽  
Tea Plants ◽  
Nitrogen Phosphorus

A trial of special fertilizer reduction and combined application of organic fertilizer on tea production, nutrients and economic benefits was carried out in the tea garden at Shihe Port, Xinyang, Henan Province, China. The experiment has six treatments of customary fertilization (CK), 100% special fertilizer for tea (T1), nitrogen reduction 20% (T2), 40% (T3), 60% (T4) and 100% (T5), and special fertilizers at the same time. Among the special fertilizer treatments for tea plants, the germination density, 100-bud weight, fresh tea yield, N, P, and K content of new shoots and economic benefits were the highest in T1 treatment, Results showed that the yield range of the five treatments was 460～632.4kg hm2. Compared with CK, the yield increase rates were 6.11, 1.99, -4.21, -13.76 and -22.82%, respectively. The growth rates of barber bud density and 100-bud weight were -20.00～25.83 and 8.40～ 8.40%, respectively. The content of nitrogen, phosphorus and potassium in the new shoots varied by 0.623～1.070, 0.047～0.183 and 1.380～2.237%, respectively. Therefore, the special fertilizer for tea plants can reduce the nitrogen by 20% to save costs and increase efficiency. Bangladesh J. Bot. 50(3): 939-945, 2021 (September) Special

scholarly journals FEATURES OF BASIC NUTRIENT CONSUMPTION BY LINSEED FLAXIN THE CONTEXT OF FERTILIZER APPLICATION

2021 ◽  
pp. 32-37
Author(s):  
P.Yu. Latartsev ◽  
◽  
O.I. Antonova ◽  
Keyword(s):  
Crop Yields ◽  
Fertilizer Application ◽  
Average Content ◽  
Nitrogen Application ◽  
Total Removal ◽  
Nitrogen And Phosphorus ◽  
Nutrient Consumption ◽  
Phosphorus Containing ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

The study of the content and removal of nitrogen, phosphorus and potassium by linseed flax plants of the oilseed variety Severniy showed that more nitrogen and phosphorus accumulated in seeds, and potassium -in straw. The average content levels in seeds were as follow-ing: N -4.79%, P2O5 -0.79%, K2O -1.05% as compared to respective levels in straw: 0.64%, 0.1% and 1.73%. When applying fertilizers, the content of all nutrients in the straw decreases, and in the seeds it mainly remains at the con-trol level. Due to the higher crop yields in all fertilized vari-ants, the removal of phosphorus and potassium exceeds the control; and nitrogen removal –in the variants with a higher rate of nitrogen application. With seeds, an average of 87-87.8% of nitrogen and phosphorus and 37.3% of potassium from the total removal is removed from the field. Increased rate of nitrogen application contributes to greater consumption of not only nitrogen but also phosphorus and potassium. The rates of nitrogen application in the experi-ments do not compensate for its yield removal with seeds; that requires increased nitrogen application against the background of phosphorus-containing fertilizers.

Effects of Age at Harvest and Fertilizer Application on the Yield, Available Carbohydrates and Hydrocyanic Acid Content of Cassava (Manihot palmata Pohl)

1977 ◽  
Vol 88 (3) ◽  
pp. 679-681
Author(s):  
G. O. Obigbesan ◽  
A. O. Ketiku ◽  
A. A. Fayemi
Keyword(s):  
Acid Content ◽  
Fertilizer Application ◽  
Hydrocyanic Acid ◽  
Nitrogen And Phosphorus ◽  
Growing Seasons ◽  
Significant Yield ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

SUMMARYExperiments were carried out over two growing seasons to find out the effects of fertilizer application and age at harvest on the yield, available carbohydrates and hydrocyanic acid content of Manihot palmata.Fertilizers were applied at the following rates: 0–0–0; 45–45–0; 45–45–45; 45–45–67, and 45–45–90 kg/ha of nitrogen, phosphorus and potassium respectively. Harvests were at 9 and 15 months after planting. Application of nitrogen and phosphorus resulted in significant yield increases. Fertilizer application had no significant effect on the hydrocyanic acid content of the tubers. Harvesting at 15 months gave more than double the tuber yields and a higher percentage of hydrocyanic acid than harvesting at 9 months. It is, therefore, desirable to use efficient methods of processing the tubers harvested at 15 months to obtain safe products for industrial and nutritional uses.

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