Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
E_ect of price volatility on net present value (NPV) of cereal-pigeonpea intercropping with the full fertilizer rate in Mozambique (a), Tanzania (b) and Kenya (c). When the 95% confidence limit encompasses the dotted horizontal line, intercropping becomes unprofitable.
