scholarly journals EFFECTS OF N FERTILITY, PLANT DENSITY AND CULTIVAR ON YIELD OF DILL

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1165f-1165
Author(s):  
Owusu Bandele ◽  
Xenia Wolff ◽  
Byron Belvitt ◽  
Justin Egbe
Keyword(s):  
Plant Density ◽  
Long Island ◽  
Block Design ◽  
Fertilizer Application ◽  
N Fertilizer ◽  
Planting Density ◽  
Fresh Weight ◽  
Main Plot ◽  
N Fertility ◽  
N Fertilizer Rate

Two experiments were conducted in 1988 and 1990 to determine the effects of planting density, N fertilizer rate, and cultivar on fresh yield of dill. A split plot design was used in the first experiment in which planting density (one versus two rows per bed) was the main plot treatment and N rate (0, 56, 112 kg/ha) was the subplot treatment. A European cultivar, `Crown,' was used in the first experiment in 1988 while `Long Island Mammoth' was planted in 1990, N was applied in split applications while both K2 O and P2 O5 were preplant incorporated at the rate of 134 kg/ha. Planting was done on bedded rows approximately 66 cm wide and 15 cm high. N fertilizer application did not affect yield in 1988. Leaf, stem, flower, and total yields were greater for the high density planting. The second experiment evaluated yield of four cultivars (`Tetra,' `Bouquet.' `Long Island Mammoth,' and `Crown') using a randomized complete block design. `Long Island Mammoth' and `Tetra' produced greater leaf and total fresh weight while `Long Island Mammoth' and `Bouquet' produced greater flower fresh weight.

scholarly journals Effects of Planting Density and Weeding Frequency on the Corn Growth and Yield in Intercropping System with Peanut

2021 ◽  
Vol 4 (2) ◽  
pp. 39-47
Author(s):  
Welmi Samita ◽  
Edhi Turmud ◽  
Sigit Sudjatmiko ◽  
Widodo Widodo
Keyword(s):  
Block Design ◽  
Stem Diameter ◽  
Growth And Yield ◽  
Planting Density ◽  
Fresh Weight ◽  
Randomized Block Design ◽  
Optimal Population ◽  
Main Plot ◽  
Population Ratio ◽  
Plot Design

The research aimed to determine the optimal population ratio at each frequency of weeding for the growth and yield of maize. It was carried out from February to May 2020 in the field. There are 2 treatment factors tested arranged in a splite plot design, which was repeated 3 times using a completely randomized block design (CRBD). The first factor is the frequency of weeding as the main plot (Main Plot) consisting of no weeding, 1 x weeding (21 DAS), 2 x weeding (21 DAS and 42 DAS). The second factor is the ratio of the population as sub-plots, consisting of 100% corn + 0% peanuts, 80% corn + 20% peanuts, 60% corn + 40% peanuts, 40 % corn + 60% peanuts, 20% corn + 80% peanuts. The results showed that the growth and yield of maize in the intercropping system with peanuts gave the same response to the population ratio at all weeding frequencies. The planting density of 40% maize + 60% peanuts produced the highest response on the variables of stem diameter (24.675 mm), plant fresh weight (667.51 grams) and biomass weight (79.924 grams). While the highest response to weeding frequency was 2 times (21 DAS and 42 DAS) only on plant fresh weight (588.08 grams).

scholarly journals Effects of Fallowing and Nitrogen Application on Striga Infestation, Soil Fertility and Maize Performance

2019 ◽  
pp. 1-10
Author(s):  
M. S. Bassey ◽  
M. K. A. Adeboye ◽  
M. G. M. Kolo
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
N Fertilizer ◽  
Inorganic N ◽  
N Application ◽  
Randomized Complete Block Design ◽  
Natural Fallow ◽  
Main Plot ◽  
Maize Grain ◽  
N Fertilizer Rate

Striga possesses an ominous obstacle to the African continent that is struggling with food security as it affects the livelihood of more than 300 million people. The control of Striga has proved exceptionally difficult. Two fallows, namely natural fallow (NF) and A. histrix fallow (AF) were maintained in 2012, such that the field was divided into two parts and each part was further divided into three replicates. Each part was separated from one another by a strip of 2 m width and the fallow factor was randomly assigned to each part which constituted the main plot. In 2013, the inorganic N fertilizer levels (0, 60, 90 and 120 kg ha-1) were applied to the fallow plots and assigned to the sub-plot. These treatments were laid out in a split plot arrangement fitted to a randomized complete block design with three replicates. The two fallows significantly (P < 0.05) reduced Striga infestation similar to application of N at 60 – 120 kg N ha-1. The two fallows significantly (P< 0.05) increased SOC. Only natural fallow significantly (P<0.05) increased the STN by 36 %. Maize grain yield after natural fallow (1527 kg ha-1) was not significantly (P>0.05) different from that after A. histrix (1943 kg ha-1). Inorganic N application had highly significant (P<0.05) effect on grain yield. Lowest grain yield of 1253 kg ha-1 was obtained without inorganic N application, which was significantly different from those fertilized with inorganic N. Inorganic N fertilizer rate of 60 kg ha-1 seems to be optimum for maize. The Nitrogen Fertilizer Replacement Value of A. histrix was low, 13 kg N ha-1. The effect of both fallows on grain yield was due mainly to increased SOC content.

scholarly journals Corralling, planting density, and N fertilizer rate effect on soil properties, weed diversity, and maize yield

2018 ◽  
Vol 43 (3) ◽  
pp. 243-260
Author(s):  
Nurudeen Abdul Rahman ◽  
Asamoah Larbi ◽  
Andrews Opoku ◽  
Francis Marthy Tetteh ◽  
Irmgard Hoeschle-Zeledon
Keyword(s):  
Soil Properties ◽  
Maize Yield ◽  
Rate Effect ◽  
N Fertilizer ◽  
Planting Density ◽  
Fertilizer Rate ◽  
Weed Diversity ◽  
N Fertilizer Rate

scholarly journals DOSES AND SPLIT NITROGEN FERTILIZER APPLICATIONS ON THE PRODUCTIVITY AND QUALITY OF ARUGULA1

2021 ◽  
Vol 34 (4) ◽  
pp. 824-829
Author(s):  
CAMILA SENO NASCIMENTO ◽  
CAROLINA SENO NASCIMENTO ◽  
ARTHUR BERNARDES CECÍLIO FILHO
Keyword(s):  
Nutrient Management ◽  
Block Design ◽  
Fertilizer Application ◽  
Additional Treatment ◽  
N Fertilizer ◽  
Nitrate Content ◽  
Management Technique ◽  
Maximum Height ◽  
N Losses ◽  
Negative Environmental Impact

ABSTRACT Splitting nitrogen (N) fertilizer application can be an efficient nutrient management technique to improve productivity and plant quality, as well as to reduce the negative environmental impact caused by N losses. In this context, the present study investigated how the management of N affects the agronomic characteristics of field-grown arugula plants. Nine treatments were assessed in a randomized complete block design, in a 4 x 2 + 1 factorial scheme, with three replicates. The evaluated factors were doses of N (60, 120, 180 and 240 kg N ha-1), split N fertilizer applications at side-dress (two and three times) and an additional treatment without a N supply. Maximum height was obtained with the application of 198 kg N ha-1. Nitrate content, fresh mass and productivity increased with increasing N doses. There was no effect of split N fertilizer applications on the characteristics evaluated. Therefore, the supply of 240 kg N ha-1 divided into two portions was considered as the best management strategy.

INFLUENCE OF PLANT DENSITY, COMPOST AND BIOFERTILIZER ON TRUE SHALLOT SEED GROWTH IN ALLUVIAL SOIL

2020 ◽  
Vol 21 (2) ◽  
pp. 70
Author(s):  
Gina Aliya Sopha
Keyword(s):  
Allium Cepa ◽  
Plant Density ◽  
Alluvial Soil ◽  
Fertilizer Application ◽  
Alluvial Soils ◽  
Seed Growth ◽  
Plant Densities ◽  
Main Plot ◽  
Bulb Yield ◽  
Plot Design

<p>True shallot seed (<em>Allium cepa var Aggregatum group</em>) is an alternative way of growing shallot. Different environments and cultivars need a specific study. The aim of this research was to find out the best technology to grow Trisula true shallot seed by managing plant densities and applying compost and biofertilizer in alluvial soils. The study was performed from May to October 2015, using a split-plot design with four replications. The main plot was plant density: 100 plants m-2 and 70 plants m-2. Subplots were five fertilizer application combinations, they were 100% recommended dose of NPK (R-NPK), 100% R-NPK + compost, 100% R-NPK + compost + biofertilizer, 50% R-NPK + compost and 50% R-NPK + compost + biofertilizer. Results showed that biomass and bulb yield were significantly affected by plant density and fertilizer application. The reduced 50% R-NPK by substituting with compost and biofertilizer was unable to maintain shallot bulb yield equal to 100% R-NPK, suggesting insufficient nutrients derived from compost to satisfy the shallot requirement. The best technology to grow true shallot seed of Trisula variety was 100 plants m-2 plant density and 100% NPK (consisting of 180 kg N ha-1, 52 kg P ha-1 and 50 kg K ha-1) with 2.5 t ha-1 compost that achieved the highest bulb yield of 9.83 t ha-1 and increased the revenue.</p>

scholarly journals Growth and Yield Responses of Cowpea and Groundnut to Five Rhizobial Inoculant Strains in the Guinea Savanna Zone of Ghana

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
F. Mintah ◽  
Y. Z. Mohammed ◽  
S. Lamptey ◽  
B. D. K. Ahiabor
Keyword(s):  
Block Design ◽  
Dry Weight ◽  
Fertilizer Application ◽  
N Fertilizer ◽  
Growth And Yield ◽  
Mineral N ◽  
Guinea Savanna ◽  
Rhizobial Inoculation ◽  
Yield Responses ◽  
Savanna Zone

Inoculating groundnut and cowpea with highly effective and competitive rhizobial strain improves nodulation. A field experiment was carried out at the experimental field of the Faculty of Agriculture, University for Development Studies, Nyankpala, to evaluate the growth and yield responses of cowpea and groundnut to five rhizobial inoculant strains in the Guinea Savanna zone. The experiment was laid out in a randomized complete block design (RCBD) with eight (8) treatments replicated four (4) times. The treatments included five rhizobial inoculant strains (NC 92, KNUST 1002, KNUST 1003, KNUST 1006, and BR 3267), two N fertilizer levels (20 kg·N/ha and 40 kg·N/ha), and a control. The results showed that rhizobial inoculation and N fertilizer application increased nodulation, biomass yield, pod number, pod weight, hundred seed weight, nodule dry weight, and pod yield of groundnut compared with the control. Rhizobial inoculation averagely increased the nodulation and yield by 63 and 67%, respectively, compared with the control. Mineral N fertilizer (20 kg N/ha) on average increased the nodulation and yield by 24 and 25%, respectively, compared with the control plots. It can be recommended from this study that, in the absence of highly competitive rhizobial strains such as KNUST 1006 and NC 92 as biofertilizers for increasing the nodulation and yield of cowpea and groundnut, 20 kg·N/ha can be used for the purpose. Further research is recommended using these rhizobial strains in combination with lower rates of N fertilizers (<20 kg·ha−1).

scholarly journals Effect of Fertilizer Application on Production of Triumfetta Tomentosa Boj.(Fam. Tiliaceae), A Multipurpose Plant in Kenya

2020 ◽  
Vol 5 (7) ◽  
pp. 406-408
Author(s):  
Kariuki, S. T ◽  
Kinuthia, N. L ◽  
Mathooko, M. J ◽  
Mucheke, W.
Keyword(s):  
Block Design ◽  
Fertilizer Application ◽  
Above Ground Biomass ◽  
Forest Research ◽  
Fresh Weight ◽  
Planting Material ◽  
Random Block ◽  
In The Wild ◽  
Random Block Design ◽  
Abundance And Distribution

Triumfetta tomentosa Boj. is a n indigenous perennial low shrub found growing naturally in moist habitats. It is commonly found on forest margins and along riparian zones. It is a multipurpose plant exploited by many communities in Kenya as a source of fodder, fiber for making baskets, ropes and hats, while the remaining debarked wood is used for making winnowing trays and firewood. However, as the population increases, more land is being converted into agricultural farms and settlement sites. These development activities coupled with global warming effects due to increasing green house gasses in the atmosphere are threatening the abundance and distribution of this species. The objective of this study was therefore to investigate the effect of fertilizer application on biomass of T. tomentosa, if brought under cultivation like any other crop. Seedlings were raised in nurseries from seeds and cuttings at Muguga( Kenya Forest Research Institute-KEFRI). These seedlings were transplanted to the experimental sites in Embu and Meru on eastern slopes of Mt. Kenya. Random Block Design was used at spacing of 30 cm × 30 cm and 45 cm × 45 cm in 3 replicates for each planting material. All plants were harvested after 7 months and above ground biomass was determined in terms of fresh weight in tones/ha. Analysis of variance was used to compare the biomass among different treatments. The results showed significant increase in biomass (p ≤ 0.05) of fertilizer application on T. triumfetta cultivation. Plants raised from cuttings grew faster than those raised from seeds and had more biomass. This study showed that T. tomentosa can be brought under cultivation like any other crop and its productivity can be improved through fertilizer application. This will help in its conservation as it is threatened in the wild

Effect of Different Doses of Nitrogen and Spacing on Viola odorata Linn. (Banafsha) in Mid Hill Zones of Himachal Pradesh

2015 ◽  
Vol 22 (2) ◽  
pp. 61-63
Author(s):  
Krishan Chand ◽  
Hari Sankhyan ◽  
Vimal Chauhan
Keyword(s):  
Seed Weight ◽  
Block Design ◽  
Fertilizer Application ◽  
Himachal Pradesh ◽  
Fresh Weight ◽  
Viola Odorata ◽  
Commercial Cultivation ◽  
Randomized Block Design ◽  
Phosphorus And Potassium ◽  
Different Doses

Viola odorata Linn. (Banafsha) is an important herb for commercial cultivation in temperate as well as sub-tropical climate (preferring a shady conditions) in the Himalayas. No systematic information on nitrogen fertilizer application and planting geometry is available for this crop. Therefore, an experiment was conducted to study the effect of the different doses of nitrogen and spacing on Viola odorata Linn. (Banafsha) in mid hill zones of Himachal Pradesh in Randomized Block Design with 3 replications. Treatments consisted of 4 levels of nitrogen (0, 60, 90, 120 kg/ha) and 5 row spacing (10 x 10 cm, 15 x 15 cm, 20 x 20 cm, 25 x 25 cm and 30 x 30 cm), respectively. Full does of Phosphorus and Potassium (60 kg/ha each) were applied at the time of transplanting. 1000 seed weight was observed maximum for N 120 kg/ha. Maximum value of fresh weight of flower was observed at 10 x 10 cm spacing, while number of leaves per plant, pod diameter and 1000 seed weight were found highest at the spacing of 25 x 25 cm. Application of 120 kg N/ha and spacing of 25 x 25 cm produced significantly higher pedicel length, fresh weight of flowers, while 1000 seed weight was found maximum for N 90 kg/ha at a spacing of 25 x 25 cm.

scholarly journals Response of Finger Millet (Eleusine coracana L.) to Varying Levels of Plant Density and Nitrogen

2021 ◽  
pp. 308-314
Author(s):  
M. Niharika ◽  
G. E. C. H. Vidya Sagar ◽  
K. Bhanu Rekha ◽  
T. Anjaiah
Keyword(s):  
Finger Millet ◽  
Plant Density ◽  
Growth Parameters ◽  
Block Design ◽  
Growth And Yield ◽  
Planting Density ◽  
Available N ◽  
Nitrogen Levels ◽  
Randomized Block Design ◽  
Matter Production

A field experiment was conducted during kharif, 2019 at College Farm, Professor Jayashankar Telangana State Agricultural University, Telangana. The present study was conducted to know the effect of different planting densities and nitrogen levels on the growth and yield of Finger millet. The soil of experimental site was loamy sand type, slightly acidic in pH (6.43), non-saline in EC (0.15 dSm-1), low in organic carbon (0.42%), low in available N (201.6 kg ha-1), medium in available P (25.3 kg ha-1), low in available K (236.25 kg ha-1). The experiment was laid out in randomized block design with factorial concept and replicated thrice with 12 treatments combinations consisting of four nitrogen levels (0 %, 50%, 100% and 150% RDN) and three levels of planting density (S1-solid rows × 15 cm, S2- 30 cm × 15 cm, S3- 25 cm × 15 cm). Results indicated that S1-solid rows × 15 cm recorded highest plant height, number of tillers m-2, dry matter production (g m-2) and S3- 25 cm × 15 cm recorded highest leaf area plant-1 and yield. Application of 150% RDN recorded highest plant growth parameters, grain yield and straw yield. However, it was on par with 100% RDN. It was concluded that planting density of 25 cm × 15 cm among spacings and 100% N among nitrogen levels proved to be a viable option for getting higher productivity and profit under rainfed conditions of central agro climatic zone of Telangana.

scholarly journals The Effects of Mixed Source Fertilizer Application on Vertisol Fertility and Growth of Mustard

2017 ◽  
Vol 22 (3) ◽  
pp. 139-148
Author(s):  
Jauhari Syamsiyah ◽  
Sumarno Sumarno ◽  
Suryono Suryono ◽  
Nur Echsan Muhamat Rajab ◽  
Ida Aryaningrum
Keyword(s):  
Block Design ◽  
Nutrient Content ◽  
Fertilizer Application ◽  
Growth And Yield ◽  
Available P ◽  
Fresh Weight ◽  
Total N ◽  
Organic C ◽  
Nutrient Contents ◽  
Exchangeable K

Soil fertility is a crucial factor determining the growth and yield of plants. The increase of nutrient content and availability in soil can be achieved by fertilization. A field experiment was conducted using a Randomized Completely Block Design (RCBD) with two factors and three replications in order to study the effects of Mixed Source of Fertilizer (MSF) application on the nutrient contents in Vertisol and its relationship to the growth and yield of mustard. The first factor was the three MSF formulas (F1, F2, F3) and second factor was the doses of MSF (0; 2.5; 5.0; 7.5; 10 Mg ha-1) applied to the soil. At the end of the experiment, the soil pH, CEC, organic-C, total-N, available-P and exchangeable-K contents were measured. The results show that there are no significant differences on the soil chemical characteristics, such as pH, organic-C content, available-P, exchangeable-K, -Ca and -Mg measured after application of different MSF formulas to the soil. Meanwhile, the increase of MSF doses applied to the soil significantly increases organic-C content, total-N, available-P and exchangeable-K in the soil. The significant increase of available-P (by 29.13%) and total-N (by 24.1%) occured after application of MSF at 5.0 Mg ha-1 and the increase of exchangeable-K (by 50%) is achieved after application of 7.5 Mg ha-1, in comparison to that without MSF application. The height and fresh weight of mustard increase in accordance with the increase of MSF doses applied. The application of 10.0 Mg ha-1 MSF results in the highest height and fresh weight of the mustard up to 63.9% and 620%, respectively. The height and fresh weight of mustard are positively correlated to the total-N, available-P and exchangeable-K in the soil. The MSF is an alternative fertilizer that can be used to improve Vertisol fertility and plant growth. 

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