Growth and Yield Response to Fertilizer Application and Nutritive Quality of Huckleberry (Solanum scabrum Mill.) Varieties Cultivatedin the Mount Cameroon Region

A field trial was conducted at the experimental farm of the Department of Crop Protection and Environmental Biology, University of Ibadan, Nigeria, to determine the growth and yield response of cucumber (cv. Poinsett) to timing of fertilizer application. Fertilizer (20:10:10), at the rate of 150 kg N ha-1, was applied at: planting, 3 weeks after planting (WAP) and 6 WAP. Similarly, split applications were given at planting + 3 WAP, at planting + 6 WAP and at 3 WAP + 6 WAP. The experimental design was a randomized complete block with seven treatments (six fertilizer application treatments plus a non fertilizer control) and four replications. Means were separated using Duncan’s Multiple Range Test at the 5% level of significance. In general, plants that were fertilized performed better than control plants in terms of vegetative growth and yield. A split application at 3 WAP + 6 WAP performed the best in terms of vegetative growth and fruit yield. Fertilizer applied once-over at 6 WAP was the least beneficial; application of fertilizer once-over at planting, or a split application at planting + 3 WAP, resulted in a high level of vegetative growth but lower fruit yield compared with the split application at 3 WAP + 6 WAP. Key words: Cucumber, N-P-K., time of application, vegetative growth, fruit yield

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Growth and Yield Response of NSIC Rc 204H (M20) to Nostoc (Nostoc commune Vauch) in Different Rates of Inorganic Fertilizer Application

10.21203/rs.3.rs-590829/v1 ◽

2021 ◽

Author(s):

Allen Mae Rodolfo ◽

Dionie S. Barrientos

Keyword(s):

Growth Parameters ◽

Fertilizer Application ◽

Inorganic Fertilizer ◽

Growth And Yield ◽

Yield Response ◽

Nostoc Commune ◽

Yield Parameters ◽

Best Response ◽

1000 Grain Weight ◽

The Ideal

Abstract The study was conducted to evaluate the growth and yield response of M20 with the application of Nostoc and to determine the ideal combination of inorganic fertilizer and Nostoc. Based on the result of the study, in terms of growth parameters; application of 3 g Nostoc with 1/2 RRIF gave the best response among the treatment in plant height, while application of 3 g Nostoc with 3/4 RRIF was the best treatment when it comes to days to flowering. Furthermore, the application of full RRIF was the best in terms of chlorophyll content. In yield parameters, the application of 3 g Nostoc with 1/4 RRIF gave significance response to grain yield and biomass. While the application of no Nostoc with 1/4 RRIF had the heaviest 1000 grain weight. For the number of tillers per plant (14.7), the application of 3 g Nostoc with 3/4 RRIF gave the best response among the treatments. And for the number of filled grains, rice grown without Nostoc but fertilized only with 1/2 RRIF had the most number of filled grain. Overall, Nostoc treatment did not significantly alter the response of M20 based on all agronomic parameters tested in the study.

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Growth and Yield Response of Chilli (Capsicum annum L) for the Combined Organic and Inorganic Fertilizer Application

Journal of Agro-Technology and Rural Sciences ◽

10.4038/atrsj.v1i1.27 ◽

2021 ◽

Vol 1 (1) ◽

pp. 18

Author(s):

I.J.A. Ruhunuge ◽

A.W. Wijeratne ◽

E.M. Wimalasiri

Keyword(s):

Fertilizer Application ◽

Inorganic Fertilizer ◽

Growth And Yield ◽

Yield Response ◽

Capsicum Annum

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Old-Field Longleaf Pine (Pinus palustris Mill.) Long-Term Growth and Yield Response to Midrotation Fertilization

Forest Science ◽

10.1093/forsci/fxaa017 ◽

2020 ◽

Vol 66 (6) ◽

pp. 726-736

Author(s):

David C Clabo ◽

E David Dickens ◽

David J Moorhead

Keyword(s):

Growth Parameters ◽

Longleaf Pine ◽

Pinus Palustris ◽

Growth And Yield ◽

Yield Response ◽

Agricultural Fields ◽

Old Field ◽

Stem Quality

Abstract Longleaf pine (Pinus palustris Mill.) is frequently planted on former agricultural fields throughout the southeastern United States. Limited information is available on the long-term growth and yield as well as stem quality of longleaf pine growing on these sites with and without midrotation fertilization. The objectives of this study were (1) to determine the growth rates, wood yields, and stem quality of old-field longleaf pine and (2) to quantify growth improvements provided by midrotation fertilization. Study sites were established on former agricultural fields in Screven and Tift County, Georgia in unthinned longleaf pine stands planted during December 1986. Three treatments including a control, single full dose, and split dose of nitrogen, phosphorus, and potassium were applied prior to thinning. Assessments of diameter at breast height, height growth, volume, green weight, and basal area at both sites were conducted at ages 21, 23, 27, 30, and 32. After 32 years, results indicated no statistically significant improvements of any growth parameters compared to the control in relation to midrotation fertilization treatments, and stem defects occurred in approximately 29–35 percent of trees. The fast growth rate and low nutrient demand of longleaf pine on these sites obviate the need for midrotation fertilization.

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Monitoring Onion Crop “Cipolla Rossa di Tropea Calabria IGP” Growth and Yield Response to Varying Nitrogen Fertilizer Application Rates Using UAV Imagery

Drones ◽

10.3390/drones5030061 ◽

2021 ◽

Vol 5 (3) ◽

pp. 61

Author(s):

Gaetano Messina ◽

Salvatore Praticò ◽

Giuseppe Badagliacca ◽

Salvatore Di Fazio ◽

Michele Monti ◽

...

Keyword(s):

Precision Agriculture ◽

Vegetation Index ◽

Block Design ◽

Optimal Level ◽

Fertilizer Application ◽

Daily Basis ◽

N Fertilization ◽

Growth And Yield ◽

Yield Response ◽

Fertilizer Treatment

Remote sensing (RS) platforms such as unmanned aerial vehicles (UAVs) represent an essential source of information in precision agriculture (PA) as they are able to provide images on a daily basis and at a very high resolution. In this framework, this study aims to identify the optimal level of nitrogen (N)-based nutrients for improved productivity in an onion field of “Cipolla Rossa di Tropea” (Tropea red onion). Following an experiment that involved the arrangement of nine plots in the onion field in a randomized complete block design (RCBD), with three replications, three different levels of N fertilization were compared: N150 (150 kg N ha−1), N180 (180 kg N ha−1), and e N210 (210 kg N ha−1). The crop cycle was monitored using multispectral (MS) UAV imagery, producing vigor maps and taking into account the yield of data. The soil-adjusted vegetation index (SAVI) was used to monitor the vigor of the crop. In addition, the coverage’s class onion was spatially identified using geographical object-based image classification (GEOBIA), observing differences in SAVI values obtained in plots subjected to differentiated N fertilizer treatment. The information retrieved from the analysis of soil properties (electrical conductivity, ammonium and nitrate nitrogen), yield performance and mean SAVI index data from each field plot showed significant relationships between the different indicators investigated. A higher onion yield was evident in plot N180, in which SAVI values were higher based on the production data.

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APLIKASI PUPUK DAUN UNTUK MENINGKATKAN PERTUMBUHAN DAN HASIL BAWANG DAYAK (Eleutherine palmifolia (L.) Merr)

Jurnal Ilmu-Ilmu Pertanian Indonesia ◽

10.31186/jipi.23.1.66-71 ◽

2021 ◽

Vol 23 (1) ◽

pp. 66-71

Author(s):

Elva Suryani ◽

Ronny Yuniar Galingging ◽

Widodo Widodo ◽

Marlin Marlin

Keyword(s):

Plant Height ◽

Block Design ◽

Fertilizer Application ◽

Growth And Yield ◽

Yield Response ◽

Time Interval ◽

Time Intervals ◽

Foliar Fertilizer ◽

Randomized Block Design ◽

Leaf Fertilizer

[APPLICATION OF LEAF FERTILIZER TO INCREASE THE GROWTH AND YIELD OF BAWANG DAYAK (Eleutherine palmifolia (L.) Merr)]. Bawang Dayak (Eleutherine palmifolia (L.) Merr) is a potential medicinal plant and required improved growth and yield through the application of appropriate fertilizers. This study aimed to increase the growth and yield of bawang Dayak by determining the optimum concentration and time interval of foliar fertilizer application. The experiment was arranged in a completely randomized block design factorial. The first factor was the concentration of foliar fertilizer, consisting of 0,1, 2, and 3 g/L. The second factor was interval application of foliar fertilizer, consisting of every day, every 3 days, every 6 days, and every 9 days. The results showed that bawang Dayak did not show a significant response to foliar fertilizers. However, there was an interaction between the concentration and interval of foliar fertilizer application which had a significantly different effect on plant height. The highest plant height occurred at intervals of 3-day foliar fertilizer application with a concentration of 3 g/L. The concentration of foliar fertilizer had a significant effect on the variables of plant height, bulb fresh weight, as well as the bulb numbers. All concentrations of foliar fertilizer (0-3 g/L), and time intervals of foliar fertilizer application (1-9 days) affected the same growth and yield response of Bawang Dayak.

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Growth and Yield Response of Bell Peppers (Capsicum annuum L.) to a Nitrogen Fertigated Plastic-mulched System

HortScience ◽

10.21273/hortsci.31.4.586c ◽

1996 ◽

Vol 31 (4) ◽

pp. 586c-586

Author(s):

D. Janik ◽

E. Fava ◽

C.A. Madramootoo ◽

K.A. Stewart

Keyword(s):

Capsicum Annuum ◽

Block Design ◽

Fertilizer Application ◽

Leaf Nitrogen ◽

Control Plot ◽

Growth And Yield ◽

Yield Response ◽

King Arthur ◽

Randomized Block Design ◽

Bell Peppers

The yield of bell peppers (Capsicum annuum L. cv. King Arthur) was measured when grown in the field under eight mulching/irrigation/nitrogen fertilization systems, was studied at the Macdonald Campus of McGill Univ., using a randomized block design replicated three times. All treatments received a preplant fertilizer application of 60 kg N/ha with four of the treatments receiving additional fertigation during the season. Of the four treatments receiving fertigation, one silver reflective mulched plot and one black mulched plot received an additional 40 kg N/ha in 4 kg N/ha/week over a 10-week period beginning 12 June weekly up to and including 14 Aug. 1995. The remaining two fertigated treatments only received additional N, when leaf nitrogen, based upon leaf chlorophyll content, dropped below a 95% sufficiency index as measured by a Minolta SPAD 502 meter. Marketable yields of the fertigated plots range between 100%–126% higher than those of the control plot for the entire growing season. However, most notably was the early yields (first three harvests), which ranged from 146%–493% higher than that of the control plot, economically, significantly increasing the producers income. The experiment will be duplicated in Summer 1996 to confirm our findings.

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