658 EXPERIMENT STATION RECORD. 



and when these were apphed at the rate of 1,700 \])S. to tlie at-re tlie plants stopped 

 flowering, turned a yellowish color, and began to die. When the salts were 

 increased to 5,000 lbs. per acre, 95 per <:ent of the leaves died. It was stated that 

 the ground upon which these experiments were conducted was already somewhat 

 alkahne, so much so that roses would not flourish on it from j'ear to year. Grazing 

 animals appear to disUke the plant. Its chief value is as a sand and soil 1)inder and 

 as an ornamental in the lawn. When the plants were set 2 ft. apart each way in 

 favorable situations, they completely covered the surface in one season's growth. It 

 is thought to have especial value for planting along reservoirs and storm water 

 embankments to bind the soil and prevent washing. Thus far it has not been 

 observed to produce fertile seed in Arizona. In shaded lawns the ])lants t-,^nd to 

 grow tall, lose the ir carpet-like formation, and seldom Ijlossom. The plant is recom- 

 mended for planting among rocks when it is desirable to hide them from view. It 

 is usually ])ropagated by cutting up the stems into 2-in. lengths and sowing them in 

 drills during the spring or sununer months. The station had more success in using 

 rooted plants set about a foot apart in the row. The plants must be frequently 

 watered until they have secured a permanent hold. 



Ginger, G. Landes {.Tovr. Agr. Trap., 2 {1902), No. 13, pp. 203-207; trans, in 

 Queeriskntd Ayr. Jour., 11 [1002), No. 5, pp. 354-356). — A detailed discussion is 

 given of the culture of ginger in tropical countries and its i)reiiaration for the 

 market. 



Propagation of the mango, G. W. Oliver [Florists'' Exchanrie, 14 {1002), No. 

 m, J). 4<;i, fiijs. 2). — As the result of some experimental work in the grafting of man- 

 goes the author states that the l)est time for grafting is when the new leaves are not 

 far enough developed to show a bright green color. At this time the bark is most 

 easily removed. The thick part of the stem a few inches above the ground should 

 be chosen and a rectangular piece of Imrk about IJ in. in length cut out. Another 

 piece of bark taken from the variety wdiich it is wished to propagate should be cut 

 to a corresponding size and have a bud in its center. The scion bark should be 

 taken from wood at least 2 years old. After the bark has been fitted in place a light 

 coating of liquid grafting wax in which there is a large quantity of resin should be 

 ai)i)lied to the cut parts with a small brush, after which the bark should be imme- 

 diately tied flrmly in place with thick pieces of raffia. An 8-in. wide strip of f<trong 

 wrajjping paper is wound around the stem a few inches above the bud, extending 

 downward to i^rotect it, and tied with a cord. The author states that by this method 

 a large percentage of successful unions may be expected. 



The culture of onions in Holland, A. Pion {Jour. A(jr. Prat., n. srr., 4 {1902), 

 No. 51, pp. 802, 803). — A descriptive account of the onion industry of Holland. 

 Silver skin onions are chiefly grown and the work is done mostly on a small scale by 

 farmers and their families. 



Peas put to the test, E. S. Brown {Amer. Gard., 24 {1903), No. 420, p. 22, 

 fi'j.l). — The tests with peas at the American Gardening trial grounds lead the author 

 to recommend Surprise and Gradus for early, Gregory Surprise for second early, and 

 Champion of England for third early. If only one pea could be grown the author 

 would choose Surprise. 



Manurial experiments with peas {Gard. Chron., 3. scr., 32 {1902), No. 831, p. 

 391; abs. in Amcr. Gard., 23 {1902), No. 418, p. 833).— An increase in yield of 6(5| 

 per cent was obtained with the Daniel Best of All peas by dressing them with super- 

 phosphate and sulphate of potash at the rate of 3 lbs. of each spaded into 2 scj. rods 

 of soil about 3 weeks before planting. 



Cultivation of pepper, V. Sebastian {Queensland Agr. Join:, 11 {1902), No. 5, 

 }ip. 356-358). — Methods of (mltivation and harvesting the pepper plant {Piper nigrun ) 

 are given. 



Forcing tomatoes, A. C. Beal {Illinois Sta. Bui. 81, pp, 503-524, Jigs. 5, dgnis. 2).- 

 The manner of forcing tomatoes in winter ?ind the yield obtained with several varie 



