crop productivity, water use efficiency (wue), and microbial biomass c and n in rainfed dry area are influenced by tillage, rotation, and crop residue management. field experiments were conducted during 2005-08 to study the effect of tillage, crop rotation, and crop residue retention on oat fodder yield, water use efficiency, and microbial biomass c (mbc) and n (mbn) under semi-arid conditions ...

The research focused on the effects of previous cropping and fertilizers on the LAI, rhythm of the dry matter, leaf disease intensity and amount of yield. Long term field experiments’ results proved that the previous crop fundamentally determines size, rate and dynamics of the dry matter formation in the spring time vegetation period. The LAI index and crop results of winter wheat can be influe...

Agricultural contracts and crop insurance are important ways for farmers to mitigate risks in modern U.S. agriculture. In this paper, we investigate the effect of crop insurance enrollment on farmers’ participation of marketing contracts. Following Ligon (2003), we setup a mechanism design framework to demonstrate an integrator’s contract design problem where farmers are assumed to be expected ...

This paper examines how changes in major elements of the U.S. federal crop insurance program affect the structure of the agricultural insurance industry. We model interactions between farmers, insurance agents and insurance companies. Marginal changes in government policy (premium subsidy rate, A&O subsidy rate, and loading factor) affect the insurance premium rate, agent compensation rates, ag...

This paper analyzes the potential trade offs and complementarities that exist between intra-year strategies employing annual price and yield risk contracts and inter-year self-insurance strategies involving intertemporal consumption substitution and borrowing, and explores whether standard crop insurance contracts can be made more useful to farmers if offered with a multiple-year horizon. —————...

Corn growth conditions and yield are closely dependent on climate variability. Leaf growth, measured as the leaf area index, can be used to identify changes in crop growth in response to climate stress. This research was conducted to capture patterns of spatial and temporal corn leaf growth under climate stress for the St. Joseph River watershed, in northeastern Indiana. Leaf growth is represen...