Agronomic and Physiological Responses of Rice (Oryza sativa L.) under Different Water Management Systems, Fertilizer Types and Seedling Age
| Autor: | Yasumaru Hirai, Oscar B. Zamora, Kyi Mon Mon Ko, Lucille Elna P. de Guzman |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Oryza sativa biology business.industry Field experiment 04 agricultural and veterinary sciences General Medicine engineering.material biology.organism_classification 01 natural sciences Agronomy Seedling Agriculture 040103 agronomy & agriculture engineering 0401 agriculture forestry and fisheries Phyllochron Fertilizer Leaf area index business Vermicompost 010606 plant biology & botany |
| Zdroj: | American Journal of Plant Sciences. :3338-3349 |
| ISSN: | 2158-2750 2158-2742 |
| DOI: | 10.4236/ajps.2017.813225 |
| Popis: | A field experiment was conducted to evaluate the agronomic and physiological responses of rice under different water management systems, types of fertilizer and seedling age. This experiment was done at the farm of Agri Park, College of Agriculture, Central Experimental Station (CES), Crop Science Cluster of the University of the Philippines Los Banos, College Laguna during 2013. The strip-split plot design with three replications was used with the two types of fertilizer (vermicompost and chemical fertilizer), water management (with and without standing water) and two seedling ages (10 and 14-d old) were the treatments in the experiment. Chemical fertilizer produced the highest grain yield, total dry matter (TDM), leaf area index (LAI), net assimilation rate (NAR) and crop growth rate (CGR). Most of these characters significantly increased in 10-d old seedlings with chemical fertilizer without standing water. The shorter phyllochron and higher root pulling resistance (RPR) were observed in 10-d old seedlings without standing water. For the variety NSIC Rc 216, the use of 10-d old seedlings grown without standing water with chemical fertilizer is the optimum conditions for the better growth and high productivity. |
| Databáze: | OpenAIRE |
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