6 REPORT ON THE KLAMATH MARSH EXPERIMENT. 



to determine the salt content. The necessary instruments were also 

 installed to observe the air temperature, wind velocity, and the tem- 

 perature of the seed bed. Samples of the irrigation water were tested 

 with the electrolytic bridge and composite samples were collected for 

 chemical analysis. The same was done Avith the drainage water re- 

 moved from the tract. All of these observations were continued 

 throughout the crop season of 1910, and notes were made as to the 

 growth and behavior of the crops planted. As a precautionary meas- 

 ure, samples of all the seed used in planting were tested to ascertain 

 their normal germination. 



LIST or CHOPS TRIED. 



The land which had not been plowed, but which had been thor- 

 oughly cut to pieces with the disk in the fall of 1909 was planted to 

 the following crops on April 29: Turkey wheat, barley, Crimean 

 wheat, oats, meadow fescue, alsike, redtop, sand lucern, timothy, white 

 clover, and bluegrass. 



The land from which the furrow slice had been removed was 

 planted to the following crops on April 29: Onion sets, onion seed, 

 radish, lettuce, turnips, cowhorn turnips, mangels, sugar beets, chick- 

 peas, and Canada peas. 



On May 7 on this same plat were planted three varieties of potatoes. 



On May 11 two varieties of wheat, one of barley, and one of oats 

 were planted on the land from which the furrow slice had been re- 

 moved, and on May 21 on this same plat were planted kafir corn, 

 sweet corn, and thousand-headed kale. 



On May 25 flax and hemp were planted on the same plat. 



After a severe frost on June 20 and 21 the following crops were 

 planted on the land from which the furrow slice had been removed: 

 Mangels, sugar beets, rutabagas, red beets, radish, kale, Canada peas, 

 chick-peas, sand lucern, wheat, barley, and oats. 



On July 8 there was also planted on the land from which the 

 furrow slice had been removed one drill row of each of the following: 

 Meadow fescue, alsike, redtop, sand lucern, timothy, and white clover. 



RESULTS OF THE CROP EXPERIMENTS. 



The major portion of all the crops planted came up and com- 

 menced growth in a fairly satisfactory manner, although the seedling 

 growth was slow in nearly every case. Irrigation water was used 

 freely on most of the land in an effort to reduce the salt content 

 by leaching. After passing the seedling stage moi^t of the plants 

 began to show symptoms of distress, manifested by arrested growth 

 and yellowing. This was particularly true on the land from which 

 the furrow slice had been removed. On the land where the tule mat 



ICir. 86] 



