Next Article in Journal
An Assessment of Low-Cost Techniques to Measure Ammonia Emission from Multi-Plots: A Case Study with Urea Fertilization
Previous Article in Journal
Non-Structural Carbohydrate Metabolism, Growth, and Productivity of Maize by Increasing Plant Density
Article Menu
Issue 11 (November) cover image

Export Article

Open AccessArticle
Agronomy 2018, 8(11), 244; https://doi.org/10.3390/agronomy8110244

Yield, Decomposition, Mineralization and Nitrification of Annual Legumes in an Oxisol

1
Agro-Environmental Sciences Department, University of Puerto Rico-Mayagüez, Box 9000, Mayagüez, PR 00681, USA
2
Former Student, Agro-Environmental Sciences Department, University of Puerto Rico-Mayagüez, Box 9000, Mayagüez, PR 00681, USA
*
Author to whom correspondence should be addressed.
Received: 12 August 2018 / Revised: 30 October 2018 / Accepted: 31 October 2018 / Published: 2 November 2018
(This article belongs to the Section Soil and Plant Nutrition)
Full-Text   |   PDF [944 KB, uploaded 5 November 2018]   |  

Abstract

Knowledge about seasonal and litter bag soil position effects on litter decomposition (k value), mineralization and nitrification rate of annual legumes in Puerto Rico is limited. This study determined dry matter yield (DMY), k value of litter bags placed below and above the soil surface, mineralization and nitrification rates of Lablab purpureus cv. “Rongai” and Mucuna pruriens (Velvet bean) seeded in the wet and dry season in Oxisol soils (Typic Eustrustox). There was an interaction (p < 0.05) for season and legumes on DMY, k value and N content. “Rongai” DMY was higher for the dry than wet season while Velvet bean had an opposite seasonal response. Higher k value occurred in the wet season for legumes, but “Rongai” had higher k than Velvet bean. For both legumes, N content was higher on litter bag placed below-ground in both seasons. However, in the wet season, there was less N in the above ground litter position. Higher inorganic N was observed at 90 days of soil incubation (DOI) suggesting that N was not available prior to 42 DOI. Nitrification rate was higher for “Rongai” at 22 DOI and lower at 42 and 90 DOI for both legumes. Both legumes enhanced inorganic N, but, regardless of season, Rongai supplied nutrients to the soil faster than Velvet bean. “Rongai” because of its higher k value than Velvet bean is recommended for fast growing row or vegetable crops in Puerto Rico. View Full-Text
Keywords: cover crops; lablab; legumes; mineralization; nitrification; velvet bean; yield cover crops; lablab; legumes; mineralization; nitrification; velvet bean; yield
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Tirado-Corbalá, R.; López-Ramos, L.Y.; Valencia-Chin, E.; Román-Paoli, E. Yield, Decomposition, Mineralization and Nitrification of Annual Legumes in an Oxisol. Agronomy 2018, 8, 244.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Agronomy EISSN 2073-4395 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top