comparative advantage of corn in comparison with other competing crops was investigated applying linear programming, to 2004-2005 data related to classic index (drc) in khuzestan. results showed that corn benefits from a comparative advantage in all cities of khuzestan province with acreage having been increased in the cultivation pattern of 37.5 % of the cities. in addition, comparing optimal ...

Crop acreage assessment is of particular importance in China where total crop land area is shrinking following the urbanization, directly threatening the policy of grain self-sufficiency. This study demonstrated the application potential of remote sensing to estimate large crop areas on the North China Plain (NCP). The cropping pattern in this plain comprises two growth seasons per year. The ha...

The growth in federal conservation programs has created a need for policy modeling frameworks capable of measuring micro-level behavioral responses and macro-level landscape changes. This paper presents an empirical model that predicts crop choices, crop rotations, and conservation tillage adoption as a function of conservation payment levels, profits, and other variables at more than 42,000 ag...

We propose the semiparametric small area estimator under the partially linear model. Unlike the linear mixed models widely used in the small area estimation, which assume that the area effect is the random effect, we model the area effect as the unknown function of an area-indicative variable. We represent the nonparametric part for area effect using penalized splines, by which the estimation a...

This paper studies the intensive and extensive effects of European subsidies on pesticide expenditures at farm level. Intensive refer to relative value sales, while consider acreage effects. Our approach is original insofar as we consequences EU policies The analysis relies French Farm Accountancy Data Network database from 2007 2015 which provides detailed information structure accounting. inf...

The Moderate Resolution Imaging Spectrometer (MODIS) Normalized Difference Vegetation Index (NDVI) 16-day composite data product (MOD12Q) was used to develop annual cropland and cropspecific map products (corn, soybeans, and wheat) for the Laurentian Great Lakes Basin (GLB). The crop area distributions and changes in crop rotations were characterized by comparing annual crop map products for 20...

In this paper, we examine whether a minimum level of ensured consumption from a social safety net has the potential of breaking the vicious circle of risk avoidance and low return in African agriculture. We study how the implementation of a social safety net programme in Ethiopia has affected the value, risk and composition of farmers’ crop portfolios. The effects of programme participation on ...

The purpose of the study was to identify and document technical knowledge and information gaps that can inform development of appropriate training programs for cane farmers. The study employed a survey research design; involving 105 small scale farmers in selected from eight Sub-counties of Kakamega County. Data was analyzed using both descriptive and inferential statistics. Pearson’s product m...