According to Mr. Buckman the tree is rather free from blight, moderately productive, and still in good shape at the age of 27 years.
The Black Chenango is moderately productive, and withstands disease better than almost any other potato; but its dark color is objectionable.
It is moderately productive, and succeeds well if seed is procured every year or two from the East; but, if otherwise, it soon deteriorates, even under good cultivation.
Vine a fair to good grower, usually healthy, in some locations appears somewhat tender, moderately productive to productive.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "moderately productive" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.