Reading "The Complete Chile Pepper" book by Dave DeWitt and Paul W. Bosland I have found some great info. This section is on mulching, possibly mentioned before, is one I thought was worth passing along.
"There is no doubt mulch increases the yield of pepper plants."
"Some growers believe that grass clipping are particularly helpful because thick layers of them can be thoroughly saturated to increase the humidity around pepper leaves and flowers in dry weather. However, this practice sometimes promotes pepper diseases."
Some mulch types mentioned -
"Clear Plastic - This mulch warms the soil by about 10 to 12 degrees F but does not control weeds. Should not be used in hot climates."
"Black Plastic - Excellent for controlling weeds. Black plastic also warms the soil up to 5 degrees F and is good moisture control."
"Foils and Colored Plastic - Louisiana researcher L.L. Black discovered that aluminum foil mulch produced higher yields of bell peppers than ordinary black plastic. Reflective mulches also drastically reduced aphid infestations in peppers, thus lowering the incidence of aphid-transmitted viruses, such as tobacco etch."
"Black's finding showed that plants in plots mulched with aluminum foil yielded 58% more than those in black plastic-mulched plots and 85% more than unmulched peppers."
The above material is only a small portion of the tremendous amount of information this book has to offer.
P.S. I'm in no way affiliated with this book.
"There is no doubt mulch increases the yield of pepper plants."
"Some growers believe that grass clipping are particularly helpful because thick layers of them can be thoroughly saturated to increase the humidity around pepper leaves and flowers in dry weather. However, this practice sometimes promotes pepper diseases."
Some mulch types mentioned -
"Clear Plastic - This mulch warms the soil by about 10 to 12 degrees F but does not control weeds. Should not be used in hot climates."
"Black Plastic - Excellent for controlling weeds. Black plastic also warms the soil up to 5 degrees F and is good moisture control."
"Foils and Colored Plastic - Louisiana researcher L.L. Black discovered that aluminum foil mulch produced higher yields of bell peppers than ordinary black plastic. Reflective mulches also drastically reduced aphid infestations in peppers, thus lowering the incidence of aphid-transmitted viruses, such as tobacco etch."
"Black's finding showed that plants in plots mulched with aluminum foil yielded 58% more than those in black plastic-mulched plots and 85% more than unmulched peppers."
The above material is only a small portion of the tremendous amount of information this book has to offer.

P.S. I'm in no way affiliated with this book.