JUNE. 315 



TURNIPS 'WITH RAPE -DUST, &c. 

 A practice very lately introduced, and immedi- 

 ately adopted and extensively applied by that great 

 patron of modern improvements, Mr. Coke of 

 Norfolk, is to drill rape-cake dust from the same 

 machine, and at the same time with the turnip- 

 seed ; for which purpose a machine has been very 

 successfully made on Mr. Coke's principle, by Mr. 

 Burrel, of Thetford. Rape-cake is a very common 

 manure in Norfolk ; when spread for turnips, it 

 has been usual to sow it, grossly powdered, five 

 or six weeks before the sowing the turnip-seed; 

 but Mr. Coke has found at Holkham, that by 

 means of grinding it to perfect powder, there is 

 no necessity for any space of time between sowing 

 the manure and the seed; and this maybe pro- 

 table enough. It is, however, a point in which 

 comparative experiments would be valuable. By 

 thus delivering the manure and the seed into the 

 same pipes and shares of the machine, a ton does 

 six acres instead of three. In whatever way the 

 question of the time of application may be decided, 

 still the importance of the machine remains the 

 same ; for, with various other manures, there is no 

 question yet made of the propriety of delivering 

 them at the same time as the seed. Tins is the 

 case with bone-dust, soot, coal, and wooi-ashes, 

 dried and thrashed pigeons' dung, powdered night- 

 soil, and many others. Soot must, however, be 

 mixed with some rougher powder, to prevent the 



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