The overall goals of this project are to (1) optimize potato yield without using chemical herbicides or fertilizers, and (2) disseminate the knowledge and results generated from this study to farmers and agricultural professionals throughout the United States.
(1) To determine the effect of cover crop seeding rate and planting arrangement on cover crop biomass production, cover crop canopy development, and weed suppression. Seeding rates included a standard rate (1x) typical on farms in the area, and higher rates (2x, 3x). Plant arrangements included a one-way versus a grid drilling pattern. This was the objective of trials 1 to 3.
In the first year of this study (2000), project objectives were:
As outlined in our initial proposal our project objectives were as follows: 1) Evaluate in-field refuges for predator conservation and the control of root maggots (Delia spp.) and aphids. 2) Evaluate efficacy of floral plantings for conservation of root maggot and aphid parasitoids. 3) Transmit our findings to growers.
The objectives of this study were:
To evaluate the efficacy of high tunnel structures covered with insect excluding materials to reduce insect vectored diseases in an organic production system.
To evaluate the effect of different covering materials on the tunnel growing environment (temperature, relative humidity, and radiation).
To compare costs and benefits of different tunnel covering materials as they apply to plant protection under organic production.
USDA funding of organic farming research and outreach is disproportionate compared to the amount of U.S. certified organic land. According to Organic Farming Research Foundation’s State of the States 2nd Edition, 0.3 – 2% of U.S. farmland is certified organic, but only 0.06% of land grant research acres is certified organic. This project addressed the disparity of organic research and Organic Farming Research Foundation’s goal of obtaining a fair share of research funding for organic foods and farming.
This project addressed a serious pest of organic greenhouse production nationally. In Vermont, thrips are the most common reason for organic growers suspending organic practices in their greenhouse crops, fearing the loss of their entire crop to this persistent virus-transmitting pest. Even growers who rely on chemical control find the standard insecticides ineffective due to resistant pest populations. Biological control approaches for thrips will directly benefit organic producers, but will also meet the need of “traditional” growers who seek to produce plants more ecologically.
Objectives: To evaluate a wide variety of potential trap crops for use in cole crop production. To test various configurations of trap crop plantings in production fields to test the potential for reducing damage by flea beetles to crops.
Information on the basic biology of insect pests is extremely helpful in planning control strategies for insect pests. Part of the problem with the maggot complex of insects is that they are poorly understood in California conditions. In addition, it is not readily apparent to growers when the flies are active because they are nondescript and easily confused with many other types of flies that are active and in great abundance. Monitoring for their eggs is also tedious and time consuming.
An assessment of the quantity of nutrients entering, leaving and remaining on a farm is the starting point for understanding nutrient cycling. When nutrient flows are documented for the entire rotation cycle, the resulting net balances can be used as a tool to help with soil management decisions and in the interpretation of soil tests.