Annual Report, 3권 |
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50 per ct acres of potatoes ammonium phosphate apples application arsenate arsenite of soda August average base-free casein bordeaux mixture bugs Bulletin bushels per acre buttermilk calcium casein calcium oxide calcium paracasein cents per bushel check rows colonies compounds copper sulphate cost of spraying cotton cream cultures difference due to spraying experiment field flasks foliage free casein fruit gain due Geneva gram granules growth hydrochloric acid injury July July 18 lactic acid late blight leaves left unsprayed lime water marketable tubers meal milk milk-casein neutral calcium nitrogen nozzle per row orchard paris green peach pear Phosphoric acid Phytophthora infestans plates plums pounds per acre precipitate prepared price of potatoes proteid radicicola rennet scale Second sprayed row Series soluble calcium salts sprayed and unsprayed sprayer Station sulphur washes tion treated treatment turbidity unsprayed rows unsprayed trees variety wood wormy
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45 페이지 - SUMMARY. I. During the past two years much interest has been shown in the inoculation of legumes with bacteria to enable the legumes to obtain nitrogen from the air. II. These bacteria have been distributed in a dried condition upon cotton. Before being applied to the seeds the cotton is put into a solution of chemicals and the bacteria allowed to multiply. III. These packages of treated cotton have had a wide sale at a high price — two dollars for a package sufficient to treat an acre — while...
367 페이지 - ... different varieties of fruit trees. This means that, under like conditions of soil fertility, a mixture of nitrogen, phosphoric acid and potash which would meet the requirements of one variety would also meet the needs of the other varieties, so far as the supply of these plant-food constituents is concerned. What particular proportions are best adapted to meet the needs of any particular soil can be determined only by special experiment. THE RELATIVE PROPORTIONS OF PLANT-FOOD CONSTITUENTS USED...
201 페이지 - I received no insecticide or fungicide of any kind. As soon as Colorado potato beetles appeared they were gathered by hand. Fortunately they were less numerous than usual, making it possible to control them completely by going over the plants every other day or, at most, once a day. The paris green was invariably used at the rate of one pound to fifty gallons of water, lime water or bordeaux as the case might be. The spraying was done thoroughly and .uniformly with a knapsack sprayer, always going...
55 페이지 - ... substantially as hereinbefore described. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
193 페이지 - In general, commence spraying when the plants are six to eight inches high1 and repeat the treatment at intervals of 10 to 14 days in order to keep the plants well covered with bordeaux throughout the season. During epidemics of blight it may be advisable to spray as often as once a week.2 Usually, six applications will be required.
369 페이지 - In most commercial fertilizers used on fruit trees the phosphoric acid is present in proportions about four times the nitrogen. This is on the assumption that the soil contains more nitrogen relatively than phosphoric acid, which may or may not be true in individual cases. The question may be raised as to whether quantities of phosphoric acid are not frequently applied much in excess of the actual need of a season 's crops.
23 페이지 - There are presented in this bulletin the analyses of samples of fertilizers collected by the Commissioner of Agriculture during...
224 페이지 - ... amount of new wood and enlarged in the diameter of the trunk very noticeably. Wire labels loosely fastened on the trees in March had, in September, become imbedded in new growth. All of these trees were examined again in June, 1905, and practically all of them had made a very good recovery. Nearly all of the peach trees and many of the young pear trees had a good crop of fruit. EFFECT OF INJURY UPON TREES. The injury manifests itself in various ways and at different times, depending upon the...
216 페이지 - Trees that did not carry any fmit made a better recovery than those that carried even a light crop. INTRODUCTION. The winter of 1903 and 1904 was an unusually severe one throughout New York State. In many places the temperature was the lowest on record, and the periods of extreme cold were protracted. As a result the end of the winter found many of the orchards, especially those of peaches and pears, extensively and seriously injured.
275 페이지 - ... butter has any relation to either of these casein bodies. THE RELATION OF CASEIN AND CASEIN LACTATE TO CREAM-RIPENING. We wished first to ascertain what form of casein compound was obtained in the ripening of cream, when the cream showed different percentages of acid. Three series of experiments bearing on this point were made. Some fresh, pasteurized cream was treated with a carefully prepared starter in Erlenmeyer flasks, stoppered with cotton. These were allowed to stand at room temperature,...