How Crops Feed. A Treatise on the Atmosphere and the Soil as Related to the Nutrition of Agricultural Plants (Google eBook) |
What people are saying - Write a review
We haven't found any reviews in the usual places.
Related books
Forgiveness and Jesus: The Meeting Place of a Course in Miracles and ... Kenneth Wapnick No preview available - 1992 |
Absence from Felicity: The Story of Helen Schucman and Her Scribing of "A ... Kenneth Wapnick No preview available - 1991 |
Common terms and phrases
absorbed absorption acre action agricultural alkali alumina ammonia amount amphibole apocrenic assimilable atmosphere bean bodies bottle Boussingault carbonate of ammonia carbonate of lime carbonic acid cent charcoal chemical chloride clay color combination composition compounds condensed crops decay decomposed decomposition dilute dissolved earth exhaled exist experiments exposed fact feldspar fertility foliage formed free nitrogen gaseous gases glass grains grams grms growth heat humates humic humic acid humus hydrochloric acid hydrogen hygroscopic inches influence ingredients insoluble kaolinite Knop lime liquid magnesia manured mineral mixture moist nearly nitric acid nitrogen nitrous observed organic matters oxide oxide of iron oxygen ozone particles peat phosphoric acid plants porous portion proportion protoxide pure quantity quartz rain rocks roots salt sand saturated Saussure Schonbein seeds sesquioxide silicates soda soil soluble solution substances sulphate sulphuric acid supply surface tained temperature tion tube ulmic vapor vessel weight yield zeolites
Popular passages
Page 379 - GARDEN, to whom it presents methods quite different from the old ones generally practiced. It is an ORIGINAL AND PURELY AMERICAN work, and not made up, as books on gardening too often are, by quotations from foreign authors. Every thing is made perfectly plain, and the subject treated in all its details, from the selection of the soil to preparing the products for market.
Page 180 - Obviously, too, the quantity of liquid in a given volume of soil affects not only the rapidity, but also the duration of evaporation. The following table, by Schubler, illustrates the peculiarities of different soils in these respects. The first column gives the percentages of water absorbed by the completely dry soil. In these experiments the soils were thoroughly wet with water, the excess allowed to drip off, and the increase of weight determined. In the second column are given the percentages...
Page 379 - ... presents methods quite different from the old ones generally practiced. It is an ORIGINAL AND PURELY AMERICAN work, and not made up as books on gardening too often are, by quotations from foreign authors. Every thing is made perfectly plain, and the subject treated in all its details, from the selection of the soil to preparing the products for market. CONTENTS. Men. fitted for the Business of Gardening. The Amount of Capital Required, and "Working Force per Acre.
Page 190 - ... by strewing a coating of coal-dust an inch deep over the surface of the soil. In some of the vineyards of the Rhine, the powder of a black slate is employed to hasten the ripening of the grape. Girardin, an eminent French agriculturist in a series of experiments on the cultivation of potatoes found that the time of their ripening varied eight to fourteen days, according to the character of the soil. He found, on the 25th of August, in a very dark soil made so by the presence of much humus or...
Page 157 - ... impenetrable, crust or stratum of ochrey clay or compacted gravel, often underlying a fairly fruitful soil. It is the soil reverting to rock, the particles being cemented together again by the solutions of lime, iron, or alkali-silicates and humates that descend from the surface soil. Peat swamps thus exist in basins formed on the most porous soils by a thin layer of moorbed-pan.89 Detmer and others have given similar descriptions.
Page 216 - Whitney2 claims that the moisture supply in the soil .is the only important factor to be regulated by the cultivator in most soils, all other factors being, in general, provided for naturally. 'A generation ago Johnson3 wrote : " It is a well recognized fact that next to temperature, the water supply is the most influential factor in the product of a crop.
Page 178 - ... with sunshine and wind, the surface of the soil rapidly dries ; but as each particle of water escapes (by evaporation) into the atmosphere, its place is supplied (by capillarity) from the stores below. The ascending water brings along with it the soluble matters of the soil, and thus the roots of plants are situated in a stream of their appropriate food.
Page 141 - We frequently find in meadows smooth limestones with their surfaces ' covered with a network of small furrows. When these stones are newly taken out of the ground, we find that each furrow corresponds to a rootlet, which appears as if it had eaten its way into the...
Page 177 - ... body will suck up and hold water—will exhibit capillarity; a lump of salt or sugar, a lamp-wick, are familiar examples. When the pores of a body are so large (the surfaces so distant) that they cannot fill themselves or keep themselves full, the body allows the water to run through or to percolate. When a soil is too coarsely porous it is said to be leachy or hungry. The rains that fall upon it quickly soak through, and it shortly becomes dry. On such a soil, the manures that may be applied...
Page 180 - ... In these experiments the soils were thoroughly wet with water, the excess allowed to drip off, and the increase of weight determined. In the second column are given the percentages of water that evaporated during the space of four hours from the saturated soil spread over a given surface." TABLE V. "It is obvious that these two columns express nearly the same thing in different ways. The amount of water retained increases from quartz sand to magnesia. The rapidity of drying in the air diminishes...
References from web pages
Untitled
A WORLD. BIBLIOGRAPHY OF. BIBLIOGRAPHIES. AND OF blbllographlcal CATALOGUES, CALENDARS, ABSTRACTS,. DIGESTS, INDEXES, AND THE LIKE. by THEODORE besterman ...
www.sla.org/