THE DETROIT JEWISH NEWS WSU History of Shaarey Zedek (Continued from Page 16) Shaarey Zedek play a role in the cast of characters in this volume. With Rabbi Irwin Groner are recorded the services of Rabbi A.M. Her- shman, Rabbi Morris Adler, Rabbi Judah L. Levin, Rabbi A.M. Ashinsky and the several who served as associate rabbis. Then there were the edu- cational directors, and the leaders in the various auxil- iary synagogue organiza- tions, especially the sister- hood, whose presidents are fully accounted for. Of course, there were e Hazzanim, and the adorial art was the re- spected in musical -achievements always encouraged by - the synagogue. Shaarey Zedek member- ship included and continues to take pride in educators, public officials in city, state and nation, Zionists in high ranks, philanthrOpists who continue leadership in na- tional movements. Because many of them held high positions and were magnetic forces in De- troit Jewry, the names of the presidents of Shaarey Zedek belong in a review of the synagogue's history on its 120th anniversary. Here is the total list: Hiram Kraushaar, Har- ris Solomon, Morris Men- delsohn,- Reuben Mendel- sohn, Aaron Simon, Louis Blumberg, Alexander Tan- nenholz, Manuel Herzberg, Samuel N. Ginsberg, William Saulson, David W. Simons, Joseph Wetsman, Louis Granet, Harry B. Keidan, Maruice H. Zac- kheim, Abraham Srere, Robert Marwil, A. Louis Gordon, Isaac Zhetzer, Mor- ris H. Blumberg, Harry Co- hen, Harry B. Shulman, Charles Rubiner, Leonard Sidlow, Hyman Safran, Louis Berry, Abraham Sato/sky, David M. Miro, Samuel C. Kovan, Samuel Krohn, Max Lichter, Robert A. Steinberg, Harold Berry, William M. Davidson, Leonard E. Baron and the current president Harvey L. Weisberg. Every item in this his- tory is an encouragement to further study and re- search, and every indi- dent is matched by noteworthy experiences. With plans already in the offing, also with the encouragement of the Wayne State University Press, for the writing and publishing of a history of Detroit Jewry, this volume should serve as another encouragement in that di- rection. In the history of Temple Beth El, whence Shaarey Zedek emerged in the early membership's re- jection of Reform tenden- cies, written some four de- cades ago by the late Irving Katz, are the beginnings for such a total history of De- troit Jewry. The pioneering efforts of Irving Katz are recognized in the Temple story, in the documenta- tions possessed by Temple Beth El, in the sources which also contributed, as Irving Katz legacies, to teh Shaarey Zedek story. The WSU Press volume thus serves as an enrichment -in these tasks. Computers Stretch Israel's Water By MARY KROSNEY KIBUTZ SAAD — The lingering shadows of a late Friday afternoon fall over Kibutz Saad, a communal farm in Israel's arid south. The Saad settlers are ob- servant Jews who do not work on the Sabbath — and this includes turning on and off the water taps irrigating acres of carrots, sugar beets and other top-value crops. The kibutzniks will go to synagogue and pray and the crops will be looked after automatically by a highly- sophisticated computer. The electronically- controlled sprinklers and drip lines will continue to deliver the precise amount of water, sometimes mixed with liquid fertilizers, at the precise time needed, but not before special sensors in the field have gathered infor- mation about wind direc- tion and ground moisture. Kibutz Saad's com- puterized irrigation sys- tem is an example of Is- rael's continual search for ways to wring the maximum from the pre- cious water supply in a country currently using 95-100 percent of all available water. And while kibutz and other farm settlements are sav- ing between 10 percent and 40 percent in water, agricultural production is benefitting too: farm produce is the number two export item for Is- rael, after diamonds. Irrigation technology is the backbone of Israel's -ag- ricultural success story. The latest development is the use of a master computer for several kibutzim, pro- grammed to optimize water use on an hourly, daily, monthly and even yearly basis (in accordance with the strict allocations of the limited water supply). An integral part of the overall computer operation is Israeli-developed drip ir- rigation, fast appearing as the farmer's best friend in all parts of the globe. Drip irrigation was origi- nally developed in Israel in the 1960s to confine water application to individual plant roots, the area where itis needed most. By the end of that decade, it was appar- ent that the system had revolutionized the growing of grapes, bananas, cotton and certain vegetables. To- mato yields in settlements like Kibutz Saad im- mediately increased four- fold with the drip system in comparison with produce watered by conventional sprinkler systems. Not only were losses due to evaporation or wind dramatically re- duced, but plant leaves, untouched by water, were more resistant to disease, and saline water could be used for irriga- tion. The principle of the drip- per is simple. Polyethylene pipes are placed on the grOund surface next to the crop. The farmer inserts a dripper for each plant into the tubing and water is re- leased regularly in droplets. One of the biggest prob- lems with drip systems is clogging. Drippers must be protected by fine filters at the head of the supply lines and special filters have been developed to suit different types of source water. The more futuristic as- pects of drip irrigation in- clude "fertigation," inject- ing liquid fertilizers into the source water during irriga- tion. This achieves better growth and savings of up to 30 percent on fertilizers. Computers controlling drip irrigation and dis- tribution of fertilizers are currently being man- ufactured in Israel. The system for small farms costs approximately $2,500 and manufactur- ers say that this invest- ment is returned in one to two seasons. A similar, cheaper system, which operates somewhat like a pocket calculator, is also available for private gar- dens and is giving Is- raelis green thumbs they never had before. But the farmer is the biggest beneficiary of Is- rael's high technology irri- gation techniques. He can sleep peacefully at night knowing that the computer is on guard, even calling him from his bed in the event, let's say, of a burst line; by the time the farmer puts his slippers on, how- ever, the damaged line will have been shut down and another opened. Scientists in Israel con- tinue to study ways in which computers can be used to sense out as yet- unknown factors in farm- ing. They also want to know how they can further simplify procedures for farmers lacking technologi- cal backgrounds. Simultaneously, drip ir- rigation researchers are looking into the feasibility of using very thin polyethylene pipes which can be thrown away after each season, a system which has important implications for large-scale field-raw crops such as cotton and potatoes. With the problem of shrinking water supplies constantly looming over every aspect of its daily life, Israel has no choice but to keep looking for better and better means of exploiting this vital resource. 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