I have to agree with juanitos. Your plant will always grow and will need to replace damaged foliage, so is in permanent need of some nitrogen. What people tend to do wrong is to go with a very high nitrogen feed (usually liquid universal plant feed meant for indoor plants or with high nitrogen fertilized potting mix) that doesn't contain much phosperus and potassium. You need that for flowering and fruit production. Nothing wrong with a big bushy plant, just make sure it also gets the other nutes. Big bushy plants can carry tons of pods!
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So if you have the wrong ratio you'll indeed end up with a lot of flower drop, barely any pods.. and a huge bushy plant.