Supported by Indiana Vegetable Growers Association and Illiana Watermelon Association, a collaborative project between Purdue University and Michigan State University that aims to help watermelon farmers improve irrigation management was recently funded by Indiana State Department of Agriculture, Specialty Crop Block Grant. In this project, the team will conduct the scientific experiment at the Southwest[Read More…]
Crop Culture
As warm-season crops are harvested, many vegetable farmers start the process of transitioning to cool-season crops. Leafy greens and root vegetables are ready to be planted. High temperature is present across the state recently. The heat stress may affect germination and growth of some of the vegetables. Spinach is probably one of the most heat-sensitive[Read More…]
In the last several days I have received complaints of pumpkin plants with yellow leaves. Growers want to know if the yellow is a symptom of disease and what can be done about it. Yellow lesions on leaves may be symptoms of disease. There can be many reasons why pumpkin plants have yellow leaves. Usually,[Read More…]
Growers interested in growing strawberries on a plasticulture system can choose to use plug plants or bare-root plants. The pros and cons of using each of the planting materials was discussed in a previous article. This article will discuss the importance of planting dates for growers who chose to use plug plants. In the[Read More…]
Tomatoes cracking in the late stages of ripening (Figure 1) was observed in our field visit. This article discusses conditions that are likely to predispose tomatoes to crack. The cracking that happened recently in open field production is likely associated with the heavy rains. The problem is most observed when a dry period is followed[Read More…]
High rainfall amounts lead to loss of nitrogen from the soil. Sometimes the loss is great enough that a crop will benefit from additional nitrogen application. This article will describe how nitrogen is lost and factors to consider in deciding whether to apply extra nitrogen. There are two main ways nitrogen is lost from wet[Read More…]
After the heavy rains in the past a few days, flooding/waterlogging injury stands out in my farm visit this week. Regardless of tomato or cucumber, the injured plants showed leaf yellowing that occurred 2 to 3 days after waterlogging (Figure 1). The yellowing leaves are a result of chlorophyll loss, which is associated with N[Read More…]
In Indiana, strawberry is traditionally grown as a perennial crop using a matted-row system, in which strawberry bare-root plants (Figure 1) are planted in spring on bare soil. Each year, fruit is harvested from mother plants as well as daughter plants that are derived from established runners in the past year. Strawberries can also be[Read More…]
In early May, we had an extended cold period with daily average air temperatures in the 50s°F. Min temperatures are in the 40s°F, some nights even upper 30s°F. In most areas in southern Indiana, it is fortunate we did not encounter a frost with temperature dropped below 32°F, but the low temperature for the extended[Read More…]