Show Obtain Maximum Crop of Potatoes Reason for Small mall Average Is Lack of Attention Given Seed Prepared by the United States Stales Department of Agriculture One of ot the reasons wh why the average production of potatoes per acre In the United States Is lower than In Canada Great Britain In and European countries ex except pt Italy says the United States Department of Agriculture Is that less attention has hns be been n given glyen to the character character char char- acter after of ot the seed Good seed Is one of Pt the determining factors In the production production proa pro pro- of ot maximum crops of ot pota pota- toes Improvement Practices Five methods of ot Improvement practices practices practices tices which may be used In securing a Yielding high and commercially desirable desirable desir desir- able strain of ot potatoes are outlined and discussed In a new bulletin Just Issued by the United States Department Department Depart Depart- ment of ot Agriculture as Farmers' Farmers Bulletin Bulletin Bulletin Bul Bul- letin 1332 Seed Potatoes and How to Produce Them by William Stuart They are the tuber tuber unit unit method hill hlll section mass moss selection field and strain testing For the average grower mass selection and field are better methods as neither Involves the time growing and keeping separate separate separate sep sep- arate of a large number of Individual selections Both are so simple that any person of ot ordinary Intelligence can practice ce them Mass selection differs from hill se selection election e- e lection In that the tubers from the Individually Individually In In- selected plants are not kept separate Generally those who practice practice practice tice mass selection do not go to the trouble of marking promising Indi Indi- vidual plants during the growing season season season sea sea- son but simply go through the field before harvesting the whole crop and dig by hand tho those e plants which show the time desired vigor and stem characters which are thought to be correlated with productiveness trueness to type and uniformity in size of tubers of the particular variety grown Field Plan Field consists of removing the diseased weak type off or mixture plants during the growing season The field from which the seed Is to be saved should be gone over In InthIs Inthis inthis this manner at least three times durIng durIng during dur dur- ing the growing season to Insure the removal of ot all plants affected with tra transferable diseases such as mosaic and roll leaf as soon as their pr presence sence can cati be detected In the field method no attempt is matte mane to select the progeny of Individual plants at nt harvesting time the whole crop being dug and all desirable seed eed stock gathered gathered gath gaUl ered and stored In bulk The bulletin contains information on cultural practices es harvesting and storing seed treatment and prepa ar tion and fertilization of ot the soil A copy of ot the bulletin may be obtained free tree of ot charge as cis long as the time supply lasts from the United States Department Department Department Depart Depart- ment of Agriculture Washington |