EFFECTS OF CONTROLLED-RELEASE FERTILIZER ON NUTRIENT LEACHING AND GARDEN PERFORMANCE OF IMPATIENS WALLERIANA (HOOK. F. ‘XTREME SCARLET’)
| Main Author: | |
|---|---|
| Language: | English |
| Published: |
The Ohio State University / OhioLINK
2010
|
| Subjects: | |
| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=osu1275407760 |
| id |
ndltd-OhioLink-oai-etd.ohiolink.edu-osu1275407760 |
|---|---|
| record_format |
oai_dc |
| spelling |
ndltd-OhioLink-oai-etd.ohiolink.edu-osu12754077602021-08-03T05:59:47Z EFFECTS OF CONTROLLED-RELEASE FERTILIZER ON NUTRIENT LEACHING AND GARDEN PERFORMANCE OF IMPATIENS WALLERIANA (HOOK. F. ‘XTREME SCARLET’) Andiru, Gladys Anguti Agriculture Controlled-Release Fertilizer Water-Soluble Fertilizer Nutrient Leaching Garden Performance Longevity Imaptiens walleriana This thesis describes the effects of controlled-release fertilizers (CRF) of different formulations and longevities on nutrient leaching out of the containers and garden performance of Impatiens walleriana. In the first experiment, impatiens plants were grown with Osmocote Plus 16-9-12 formulation of 5-6 month (5-6M) and 8-9 month (8-9M) longevities placed at four positions in the container: Topdressed, Incorporated, Top-one-third and Bottom. A 150 mgL-1 N Peter’s Professional water-soluble fertilizer (WSF) of 20-10-20 formulation was used as a control. Leachates were collected at every irrigation and the concentrations of N, P, and Fe in the leachates were measured. Shoot dry weight (DW) and canopy cover (CC) were also measured. Total amount of water leached and nutrients lost from CRF and WSF were quantified. WSF produced plants of similar quality as CRF treatments except when CRF was applied at the bottom of the container. This fertilizer placement resulted in plants with the lowest DW, CC and leached the most P and Fe. CRF applied as topdressed leached the highest amount of N. Irrigating with a known volume of WSF solution leached less N and P but more Fe than 5-6M treatment. The WSF leached similar amount of nutrients as 8-9M CRF. In a second experiment with the same fertilizers, the amounts of water, N, P and Fe leached or lost out of the containers during irrigation with a hose were quantified. Irrigating plants with a hose caused up to 62% more water loss and up to 95% more nutrient loss during irrigation with WSF than CRF. In a third experiment, Osmocote Plus 15-9-12 of 3-4, 5-6, 8-9 and 12-14 month longevities were applied at rates of 1.4, 3.4, 6.8, 10.2 and 13.6 kgm-3. The same WSF as in the first experiment was used as a control. Impatiens plants were grown in the greenhouse and consumer evaluations were performed. Plant CC, flower cover (FC) and DW were determined. Commercially acceptable plant quality was achieved with CRF application rates between 3.4 - 6.8 kgm-3. The aesthetic value of plants was not affected by the differences in DW, FC or CC. In experiment four, the same treatments as in experiment 1 were used with the addition of a treatment of a 50 – 50% blend of 5-6M and 8-9M. Impatiens plants were grown in the greenhouse and transplanted in the field where no fertilizer was applied. DW, consumer ratings (CR) and leaf greenness (LG) were obtained. Plants grown with CRF performed better in the field than WSF grown plants. CRF treated plants were less chlorotic, had greater DW and CR in the field. Based on our study, the standard 8-9M longevity CRF at medium rates resulted in lower N, P and Fe losses, and plants with increased DW, high CC and FC. Further work with other species is necessary to validate the results obtained with impatiens. However, at least for impatiens and under our experimental conditions, standard 8-9M longevity CRF at medium rates seems to be the best option. 2010-09-02 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1275407760 http://rave.ohiolink.edu/etdc/view?acc_num=osu1275407760 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
| collection |
NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Agriculture Controlled-Release Fertilizer Water-Soluble Fertilizer Nutrient Leaching Garden Performance Longevity Imaptiens walleriana |
| spellingShingle |
Agriculture Controlled-Release Fertilizer Water-Soluble Fertilizer Nutrient Leaching Garden Performance Longevity Imaptiens walleriana Andiru, Gladys Anguti EFFECTS OF CONTROLLED-RELEASE FERTILIZER ON NUTRIENT LEACHING AND GARDEN PERFORMANCE OF IMPATIENS WALLERIANA (HOOK. F. ‘XTREME SCARLET’) |
| author |
Andiru, Gladys Anguti |
| author_facet |
Andiru, Gladys Anguti |
| author_sort |
Andiru, Gladys Anguti |
| title |
EFFECTS OF CONTROLLED-RELEASE FERTILIZER ON NUTRIENT LEACHING AND GARDEN PERFORMANCE OF IMPATIENS WALLERIANA (HOOK. F. ‘XTREME SCARLET’) |
| title_short |
EFFECTS OF CONTROLLED-RELEASE FERTILIZER ON NUTRIENT LEACHING AND GARDEN PERFORMANCE OF IMPATIENS WALLERIANA (HOOK. F. ‘XTREME SCARLET’) |
| title_full |
EFFECTS OF CONTROLLED-RELEASE FERTILIZER ON NUTRIENT LEACHING AND GARDEN PERFORMANCE OF IMPATIENS WALLERIANA (HOOK. F. ‘XTREME SCARLET’) |
| title_fullStr |
EFFECTS OF CONTROLLED-RELEASE FERTILIZER ON NUTRIENT LEACHING AND GARDEN PERFORMANCE OF IMPATIENS WALLERIANA (HOOK. F. ‘XTREME SCARLET’) |
| title_full_unstemmed |
EFFECTS OF CONTROLLED-RELEASE FERTILIZER ON NUTRIENT LEACHING AND GARDEN PERFORMANCE OF IMPATIENS WALLERIANA (HOOK. F. ‘XTREME SCARLET’) |
| title_sort |
effects of controlled-release fertilizer on nutrient leaching and garden performance of impatiens walleriana (hook. f. ‘xtreme scarlet’) |
| publisher |
The Ohio State University / OhioLINK |
| publishDate |
2010 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=osu1275407760 |
| work_keys_str_mv |
AT andirugladysanguti effectsofcontrolledreleasefertilizeronnutrientleachingandgardenperformanceofimpatienswallerianahookfxtremescarlet |
| _version_ |
1719429095131971584 |