Show MAKES VALUE IN SOUA Humus Is in formed from the decaying vegetable and animal tat matter r In the sol soil I It contains ordinarily 3 per por cent nl trogon therefore a loss or of humus results In 1 a loss or deficiency ut of nitrogen Al An nitrogen Is 1 a valuAble constituent In time the Bol soil for the tho growth of at crops we should ende endeavor or to cult vale at our sol soil In such 1 a way that we have nn an abundance ot of thIs cn con available when required HUlus humus II is detected 11 In the tho sol soil by b the tho following properties J I Dy By Bythe the tho dark color Imparted to the 11 Poll 2 Dy By the gravity Bols Boils wih with hu bu are lighter bulk for tor bule bulk than sols colts without humus 3 Dy By the power to absorb and hold moisture 4 Dr By the rae rate which cater wi will move moo through or from Crom time the soil OI by evaporation ton tion Or percolation 6 By the tho expansion sion of at the tho sol soil when absorbIng mote mols I Iture tune ture Sonic Some ot of the effects ot of humus are darkens time the Bol soil and ar heat hent from Crom the BUl sun to pass through This makes time the soil and sol warmer more capable ot of promoting germination makes soils lighter In weight bulk for tor bulk and as n a conse consequence consequence quence Wo We do not have so BO compact a condition ot of our 1011 soils Thil This Condition allows tro free access or of air and moro more rom room for tor roots of dIminIshes ot of cia clay thus hus clay 81 soil Is mate made moro more friable trIable and less lable liable to bake and be cOle collie compact The Tho humus holds the tho vater In the sol soil and thus prevents the cracking so ofen often seen In Our clay dUr lag Ing time the summer As above aLove mentioned humus increases s water capacity ot of solis therefore a lack ot of humus In tho tha 11 anti In big Ing Il Its power ot of at storing up and d pr proper j I ly supplyIng crops wih wIth rater SolS Soils Wih with n a liberal amount ot humus are capable or of moro more withstand Ing drought than similar sola soils wih with iss humus In arid regions time 10 loss R ot of hU hUmus mus room the tho lol soil ts Is more lerlo serioUs s than II iii regions ot of continuous summer rains Dy By having supplied with hu humus mus mU we tie do not ned need to depend so o much upon tM time lummer summer showers Wih With a gl good supply ot of water our crops would con to advance th time hot weather Instead ot of going back n as they generally do In landy sandy sols th the loss ot of humus Is 15 most severely felt relt because without humus the water etc be below below low the ot of the tho plants and out ot of th their lr reach In poorly draIned lols where ther there Is a ot of ot ash phosphoric acid arid other ma inn time tho humus 10 ma Corl form sour molds but this bo be may by bythe time the use of marl limo or wood ashes the tho action ot of these materials beIng to broll break up these molds arid and make time the sol soil friable materials Iko like the decaying anti and vegetable matter In farmyard manure have hoo the power ot of combInIng combining wIth the Jot potash h and phonic acid ot of the sol soil to form whIch ar are readily assimilated by the when acted upon by the proper soils organisms These Thelo then Increase to I a marke marked extent the wail plant ro food ot of the lol soil Thus the farmyard manure and other humus materials material are not on only value valuable able for the elements ot of fertility which they contain but also for the power ot of making the Inert materials of time the therl rl soil more available to plants lants Tere There Therefore tON fore Is sols soils where hue there thero Is n a SOd good stock of reserve materials It Is cheaper tl to cultivate fertility through time the an ancy cy C ot of humus than It Is to purchase It ii ItIn In the ron form ot of commercial fertilizers Increases water capacity thus It Is wr very valuable In lols soils that are arc liable to putter rein drought Durn During time the hot weather wather 1011 soils wih 1 a amount ot of water suffer from drought but b by having n a god good supply ppl ot of humus we O can increase our wAter capacity clely and thus insure 1 a supply ot of water fox tor our crops crop prevents rolls froam leaching In time the leaching ot of Ils soils we lose very el much of at the fertilizing materials In the lol soil An Anything that wi will Prevent ent thIs thu leaching I Ii n a decided gain to the lall land S The decline In the crp crop of man many lols soils is II due to I a lo loss ot ol FarreN Farmers want toa today the best L crops fpS possible and these ar arc to be ct gel amity by the rotation ot of our oum crops anti the return of to the tho soil The humus ot 01 r the soil ln II dec decreased ac by ton of Grain rt roots or an any crp crop WItt Ith which the land Is l kept Pt continually un tier ller the plow without the additon addition of 01 r materials to form humus J it can enn he b d b by the tho use ule ot of wel well farmyard manure and b systematic rotation ot of crops In whIch grasses or preferably clover tor form at An Important Francisco CI Call CallS CallI S I |