No. 6. DEPAK'J'MKNT OP' A(iKI( ;U LTURE. 40;i 



manures to grow the hay, than I couhl by ploughing th«^ manure di- 

 rectly into the soil. I found by this method that I am enriching my 

 soil much faster than I was by applying the manure and ploughing 

 it under. T ascertained that the humus was what we needed es- 

 pecially, and in this manner 1 am getting the humus back into the 

 soil much faster than by ploughing the manure directly into the 

 soil. 



DR. FREAR: This has brought out one additional point. That 

 the vegetable matter in the manure will decay in the soil and be 

 destroyed more readily than would an equal weight of sod residue. 

 The humus affecting the sod upon the soil will be longer felt than 

 would that of an equal weight of straw turned under as manure 

 simply because manure will decay more rapidly in the soil. But the 

 case stated by the gentleman is such a one as I contemplated in 

 speaking of where the use of the manure on a moderately fertile 

 land would produce a very much larger growth of the plants. 



MR. BTiYHOLDER: The next question is: 



''Is there any remedy for club-root in cabbage?" 



PROF. R. L. WATTS: I can't answer that question from expe- 

 rience, but I can from the experience of others. Some very strong 

 results have been secured in Michigan by the use of lime. I cannot 

 answer as to how much lime should be applied to destroy the germs 

 of the disease which causes the club-root. I know that has been 

 tried to some extent in Pennsvlvania and the results are generallv 

 very encouraging and I should recommend its use. 



A Member: I have learned of a preventive that I find successful. 

 I do not know that it is a cure when the disease has taken hold. If 

 you raise your plants on sod ground and raise your cabbage on fresh 

 ground there will never be any club-roots. Club-root is the same as 

 scab on potatoes. It is a fungus and remains in the ground from 

 year to year. But raise 3'our cabbage on fresh ground every year 

 and you will have no trouble. 



PROF. WATTS: I thoroughly agree with the gentleman in his 

 remarks. Prevention is better than cure. 



The CHAIRMAN: We have had some experience with regard to 

 club-rooted cabbage in our section. I know of cases where it is 

 affected with club-roots that they pull the cabbage up and destroy 

 it, and put in a pretty liberal application of salt and plant cabbage 

 right back in the same place and grow it. 



MR. BLYHOLDER: The next question is addressed to Mr. John 

 W. Cox, of New Wilmington, Pa., and is as follows: 



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