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Possible explanations for poor results in veg bed

We put in a new raised bed with concrete block, filling it with about 1/2 compost and 1/2 soil, but it could have been more compost. Most of the compost was well-composted horse manure. One tomato got some kind of blight (blackened stems, etc) and I took it out. The other grew fine, but very slowly, so it hardly got any ripe fruit before frost. The zucchini got really big but had few fruits. The alstromeria roots I thought I had removed when building the bed did really well, flowering like crazy, crowding out some stuff. All in all, I wondered if perhaps that bed was too cool, because it was made from concrete block, and our nights up here at Lake Tapps are very cool, even in the summer. Stuff in other beds seemed to do about as normal for the weather we had, and they're in wood framed or just dirt mounded beds.

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    Too much nitrogen results in heavy leaf growth and will inhibit flower and fruit production. Tomato late blight was probably the problem with your tomato and had nothing to do with the manure, other than blights exist in the soil. There are varieties which are resistant to late blight, such as Juliette and Legend. Sometimes, it is better to replace your soil every year, or use pots. Blights as well as other diseases can build up in the soil year after year. But some types of vegetables will not be affected by them. This is another reason why crop rotation is essential. Hope this helps. Donna Martz

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