New Yokk Agricultural Experiment Station. 147 



This table shows that there is a gain in yield of the sprayed 

 over the uusprayed' rows in every case. The total gain on two- 

 fifths acre is 283 lbs., or at the rate of 707.5 lbs. per acre, an 

 increase of 47.8 per ct. 



As a record of the prime and cull bunches from the treated arid 

 untreated rows was kept and the value of the bunches known,. the 

 results can be compared in values and bunches as well as in total 

 weights. Table V shows not only the total weights from sprayed 

 and unsprayed rows, but also the total primes and culls from 

 each, together with their values and their differences. 



Table V. — Total Yield and Value of Sprayed and Unsprayed 



Asparagus, 1900. 



In general this table shows the same conditions throughout as 

 Table II which shows results for 1899, though the differences are 

 not as marked. When the results are compared on the same 

 basis, namely, as percentages, it will be seen from Table II that 

 the percentage of yield is less than the percentage of value, while 

 in Table V these conditions are reversed. Evidently this varia- 

 tion results from the varying yields of primes and culls combined 

 with the difference in price received for them. Hence the intro- 

 duction of the bunches as a means of obtaining more accurate 

 res ilts, while furiiisliing a method of determining and comparing 

 the values, at the same time introduces another factor of 

 variation. 



Taking the results of Table V as they are, the increased money 

 value received from spraying two-fifths acre was barely enough 

 to cover the cost of spraying the same. It should be remembered 

 that the yields for 1899, previous to spraying, showed that the 

 yielding capacity of this field as a whole was very small. The 



