Dry matter production and nutrient uptake in strawberry at different growth stages and nitrogen levels
Date
3-1979
Abstract
Growth and nutrient uptake trends are essential in the formulation of an efficient strawberry fertilization program. It is also important to know if these trends are influenced by the level of nutrients in the soil.
This study aimed therefore to determine dry matter accumulation trend (growth), nutrient uptake, distribution, and utilization, and yield of strawberry as influenced by different N levels.
The dry matter accumulation pattern of strawberry followed a sigmoid curve over a growing period of 40 weeks. Plants fertilized with N had an upward trend even at the end of 40 weeks. Nutrient uptake likewise continued to rise during this period. N enhanced the uptake of nutrients.
The per cent nutrients (concentration) rose during the vegetative stage and up to the time of flower and fruit formation, the declined until the end of the experiment. Per cent nutrients increased with increasing N levels.
N seemed to have been the first element to increase and be utilized in the plants. Significant increase of N uptake was noted on the 8th and 10th week from planting. These periods may be regarded as critical in strawberry fertilization.
Characters, such as number of leaves (size of crown), flowers and fruits and yield increased with increasing N levels up 180kg N/ha.
Document Type
Dissertation
Degree
Doctor of Philosophy in Horticulture
College
Graduate School (GS)
Adviser/Committee Chair
Roberto E. Coronel
Committee Member
Igmidio T. Corpuz, Arturo C. Alferez, Ramon V. Valmayor
Language
English
LC Subject
Strawberries
Location
UPLB Main Library Special Collections Section (USCS)
Call Number
LG 996 1979 A42 C37
Recommended Citation
Castro, Alejandro D., "Dry matter production and nutrient uptake in strawberry at different growth stages and nitrogen levels" (1979). Graduate Student's Output. 3323.
https://www.ukdr.uplb.edu.ph/etd-grad/3323
Notes
Doctor of Philosophy ( Horticulture )