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BETTER FRUIT 



Page IS 



Green Manuring 



Green manuring, often spoken of as 

 cover cropping, should be practiced 

 more. Henry Holtz, of tlie Washington 

 Experiment Station, states that green 

 manuring prevents washing, adds or- 

 ganic matter to the soil, prevents leach- 

 ing, and affords winter pasture. 



Summer-fallowed fields, corn fields 

 and even stubble fields wash badly in 

 spring, due to heavy rains and frost. 

 This can be largely prevented by a 

 green manure crop. In some sections 

 of Eastern Washington, where the 

 organic matter is getting low, and there 



is a rainfall of fifteen inches or more, 

 rye can be sown in the stubble in the 

 fall and plowed under in the spring 

 when the rye is about eight to ten 

 inches high. This material will easily 

 decompose during the following season. 

 In orchards, crops that are well suited 

 for this, especially in the irrigated sec- 

 tions, are vetch, rye, wheat, rape and 

 peas. In the sections of the state west 

 of the Cascade Mountains, where the 

 rainfall is high, a large amount of the 

 plant food material is leached beyond 

 the root zone. This can be prevented 

 by the use of green manures, which 



will take up the soluble plant food 

 materials and return them again to the 

 soil when plowed under in the spring. 



In addition to the beneficial effects 

 upon the soil, green manuring crops 

 make good winter pastures. Much bet- 

 ter results can be secured by plowing 

 under two or three tons of barnyard 

 manure per acre with the cover crop. 

 Organic matter must be sustained either 

 by green manuring, crop residues or 

 barnyard manure if the soil fertility is 

 to be maintained. — Bulletin of the State 

 Agricultural Experiment Station, Pull- 

 man, Washington. 





What kind of soil have you? 



Do you plow it dry? The Model 20-35 has the /J /Inhp^ 

 power to pull the Yuba 6-disc plow — and the plow 

 cuts as deep as you wish. Or wet.'' The Yuba is 

 the only machine with the traction to harvest rice 

 on wet adobe. 



■ri.::^, 





Slnfl/]'^ Admittedly a hard soil for any tractor. Frankly 

 the upkeep of the tractor will be somewhat greater. 

 But, and this may surprise you, the Yuba Bali 

 Tread wears very little faster under these condi- 

 tions. The reason? Less bearing surfaces to 

 grind away and better steels to stand the wear. 



The Yuba is a favorite for breaking tule land.. 'T',. J 2 

 The high clearance of the Yuba disc plow keeps it -*- ^^^^« 

 from clogging up. The Model 20-35 ^"^ P^ow 

 form a "one man outfit." 



*! 



T Otlfn ^ ^''^^'^ °" ^^ ^^^^ ^""^ ^^^^ '^° leave, the Yuba, with 

 * its light weight and generous traction area can go 

 on the ground pretty much where you wish. Nor 

 will it pack the soil. 



In any soil the Yuba outfit — a Yuba tractor and a 

 Yuba plow — liave points of distinct advanta<,'e. 

 Write us your conditions and let us tell you some- 

 thing of what you may expect the Yuba to do for you. 



Yuba Manufacturing Company 



\Formerly Tht Yuha Constrtuthn Company — change in name only) 



433 California Street, San Francisco 



FaSlories at Maryii'il/e and Benicia, California 



Yuba Manufacturing Company Dept. E-2 



433 California St.. San Francisco. California 

 Gentlemen: Kindly send me catalog and prices on 

 the Yuba Ball Tread Tractor. 



I am interested in Model 12-30 Model :o-33 



Name 



Town 



P.O.Box 



. State 



Size of farm_ 



Fruit 



Grapes 



[ Check main crop raised 1 

 Kice 



Hops 



-Grain 



_Alf:i:fa 



and there have just been issued new Pump and Plow Catalogs 

 wliich we will be glad to send prospective buyers. 



WHEN WRITING ADVERTISERS MENTION BETTER FRUIT 



