Results 121 to 130 of about 1,010,657 (301)
Accounting for animal health in efficiency analysis: An application to Swedish dairy farms
American Journal of Agricultural Economics, EarlyView.Abstract Poor animal health is a central concern in modern livestock production. Despite the necessity to incorporate animal health in efficiency analysis, the theoretical and empirical developments are limited on this subject. This article appropriately characterizes the axiomatic properties of animal health within a production framework.
Frederic Ang +3 more
wiley +1 more source
Ikufīziyuluzhī-i Giyāhān-i Zirā̒īThis study was conducted to investigate the effect of Potassium Thiosulfate and Nitrate fertilizers on yield, water use efficiency and control of tuber cracking of potato cultivars. This research was conducted Factorial based on randomized complete block
Davoud Hassanpanah +1 more
doaj
VARIABLE-RATE NITROGEN APPLICATION UNDER UNCERTAINTY: IMPLICATIONS FOR PROFITABILITY AND NITROGEN USE [PDF]
A micro-level model of farmer decision making is developed to examine the extent to which uncertainty about potential yields influences the value of site-specific technologies.
Isik, Murat, Khanna, Madhu
core
American Journal of Agricultural Economics, EarlyView.Abstract Discrete choice experiments are increasingly being used to estimate land managers' willingness to accept participation in incentive‐based environmental programs. This is a specific application of discrete choice experiments: the estimation of willingness to accept for a private good (program participation) where respondents have to make trade ...
Anastasio J. Villanueva +2 more
wiley +1 more source
Organic fertilizer substitution enhances maize yield and quality under reduced irrigation
Journal of Integrative AgricultureEnsuring an adequate and nutritious food supply for the global population is a significant challenge in agricultural production practice. Water and fertilizer are the main limiting factors in improving crop yield and quality.
Feier Wang +11 more
doaj +1 more source
Analysis of Nitrogen in Fertilizers
Journal of AOAC INTERNATIONAL, 1964 Abstract A survey of fertilizer commercial laboratories and regulatory laboratories showed that the salicylic acid method, 2.037, is still being widely used on liquid fertilizers; that many users of the reduced iron method are modifying it; and that very little use is being made of nitrogen activity methods 2.048— 2.051.
openaire +1 more source
Firm turnover under asymmetric information: Tanzania's agro‐dealer sector
American Journal of Agricultural Economics, EarlyView.Abstract We study firm turnover (i.e., entry and exit) and its consumer implications in a market characterized by asymmetric information. Using a three‐round census of agro‐dealers in Tanzania's Morogoro Region, we document annual firm entry and exit rates of 33% and 17%, respectively.
Alix Naugler +3 more
wiley +1 more source
Effect of Fertilizer Application on Nitrogen Loss from Farmland Runoff in Dianchi Watershed
Shuitu baochi yanjiu, 2004 By means of simulation test, the movement state of nitrogen and effect of fertilizer application on nitrogen loss from farmland runoff were studied in Dianchi watershed.
DUAN Yong-hui~1 +2 more
doaj
THE ECONOMIC AND ENVIRONMENTAL IMPACTS OF VARIABLE RATE FERTILIZER APPLICATION: THE CASE OF MISSISSIPPI [PDF]
A number of programs have been introduced to limit environmental nonpoint pollution (NPP) associated with agricultural practices. One such program, precision agriculture, involves a range of management practices that utilize site-specific information at ...
Hudson, Darren +2 more
core
Evolutionary relationship between organellar DNA inheritance patterns and traits of seed plants
American Journal of Botany, EarlyView.Abstract Premise In plants, organellar DNA is predominantly maternally inherited, but biparental and paternal inheritance have also been observed. Specific mechanisms, such as plastid exclusion during pollen mitosis or genome degradation, ensure maternal inheritance.
Takuya Konuma, Takashi Makino
wiley +1 more source