Agronomy Journal
SCOPUS (SonsInc.)SCIE-ISI
0002-1962
1435-0645
Mỹ
Cơ quản chủ quản: John Wiley & Sons Inc. , WILEY
Lĩnh vực:
Agronomy and Crop Science
Các bài báo tiêu biểu
Hydrometer Method Improved for Making Particle Size Analyses of Soils1Synopsis The time required for dispersing soils for the hydrometer method of making particle size analyses was reduced from 25 minutes to only 2 minutes. The procedure consists of soaking the soils in a 5% Calgon solution for 15 to 20 hours and then dispersing them with a soil mixer running at a speed of about 16,000 r.p.m., for 2 minutes.
Tập 54 Số 5 - Trang 464-465 - 1962
AquaCrop—The FAO Crop Model to Simulate Yield Response to Water: I. Concepts and Underlying PrinciplesThis article introduces the FAO crop model AquaCrop. It simulates attainable yields of major herbaceous crops as a function of water consumption under rainfed, supplemental, deficit, and full irrigation conditions. The growth engine of AquaCrop is water‐driven , in that transpiration is calculated first and translated into biomass using a conservative, crop‐specif... ... hiện toàn bộ
Tập 101 Số 3 - Trang 426-437 - 2009
Instrument for Indirect Measurement of Canopy ArchitectureAbstract Leaf area index (LAI) and leaf angle distribution are widely used indices of vegetative canopy structure that are difficult to measure directly. This study was conducted to test a commercially available instrument for rapidly determining LAI and foliage inclination information from “fisheye” measurements of light interception. The instrument's estimates of ... ... hiện toàn bộ
Tập 83 Số 5 - Trang 818-825 - 1991
Nitrogen Management Strategies to Reduce Nitrate Leaching in Tile‐Drained Midwestern SoilsBalancing the amount of N needed for optimum plant growth while minimizing the NO3 that is transported to ground and surface waters remains a major challenge for everyone attempting to understand and improve agricultural nutrient use efficiency. Our objectives for this review are to examine how changes in agricultural management practices during the past century have af... ... hiện toàn bộ
Tập 94 Số 1 - Trang 153-171 - 2002
AquaCrop—The FAO Crop Model to Simulate Yield Response to Water: II. Main Algorithms and Software DescriptionThe AquaCrop model was developed to replace the former FAO I&D Paper 33 procedures for the estimation of crop productivity in relation to water supply and agronomic management in a framework based on current plant physiological and soil water budgeting concepts. This paper presents the software of AquaCrop for which the concepts and underlying principles are described in the companion ... ... hiện toàn bộ
Tập 101 Số 3 - Trang 438-447 - 2009
Enhancing Water Use Efficiency in Irrigated AgricultureIrrigated agriculture is a vital component of total agriculture and supplies many of the fruits, vegetables, and cereal foods consumed by humans; the grains fed to animals that are used as human food; and the feed to sustain animals for work in many parts of the world. Irrigation worldwide was practiced on about 263 Mha in 1996, and about 49% of the world's irrigation occurred in India, Ch... ... hiện toàn bộ
Tập 93 Số 2 - Trang 281-289 - 2001
Cover Crops and Ecosystem Services: Insights from Studies in Temperate SoilsCover crops (CCs) can provide multiple soil, agricultural production, and environmental benefits. However, a better understanding of such potential ecosystem services is needed. We summarized the current state of knowledge of CC effects on soil C stocks, soil erosion, physical properties, soil water, nutrients, microbial properties, weed control, crop yields, expanded uses, and economics a... ... hiện toàn bộ
Tập 107 Số 6 - Trang 2449-2474 - 2015
Operational Estimates of Reference EvapotranspirationAbstract Many forms of the Penman combination equation have been proffered for estimating daily evapotranspiration (ET) by the agricultural reference crops grass and alfalfa (Medicago sativa L.). This study was conducted to evaluate popular forms of the Penman equation, and to develop and evaluate general relationships for estimating daily... ... hiện toàn bộ
Tập 81 Số 4 - Trang 650-662 - 1989
Potential Uses and Limitations of Crop ModelsAbstract Crop models have many current and potential uses for answering questions in research, crop management, and policy. Models can assist in synthesis of research understanding about the interactions of genetics, physiology, and the environment, integration across disciplines, and organization of data. They can assist in preseason and in‐season management decisi... ... hiện toàn bộ
Tập 88 Số 5 - Trang 704-716 - 1996
No‐Tillage Crop Production: A Revolution in Agriculture!For thousands of years, agriculture and tillage were considered synonymous. It was simply not thought possible to grow crops without first tilling the soil before planting and for weed control. The advent of modern herbicides permitted no‐tillage (NT) to be developed and practiced on actual working family farms. No‐tillage is generally defined as planting crops in unprepared soil with at l... ... hiện toàn bộ
Tập 100 Số S3 - 2008