| 单词 | hardpan |
| 例句 | On the plains, it is easy for elephants to find salt in hardpans and dry water holes, but in the rain forest salt is a precious thing. The Hot Zone 1994-01-01T00:00:00Z After breakfast, we hiked out across the hardpan of the lake bottom. 100 Sideways Miles 2014-09-02T00:00:00Z Afterward, we drove back down the hardpan beach in the gray, splintered shards of the Pacific and onto Highway 101. Don’t shoot me! I’m just picking mushrooms! 2013-09-08T13:30:00Z A third common problem is poor drainage, which is often associated with compacted and hardpan soils. It’s lawn-fixing season. Here’s how to do it. 2020-08-25T04:00:00Z “Just junk,” is how Bard describes the hardpan soil. Bainbridge artist turns her creative talents to her garden 2014-11-05T05:00:00Z Previously, gardeners used rototillers, which would produce a fluffy soil on top but, after 50 years of tilling, created a hardpan clay beneath. The case for the no-till garden 2021-07-13T04:00:00Z We drove across the hardpan beach, Doug stopping every now and then to scope a tasty-looking rip or rock pile, until we came to a spot where the woods met the dunes. Don’t shoot me! I’m just picking mushrooms! 2013-09-08T13:30:00Z He envisions a world where neighbors grow food to share with each other and those hardpan vacant lots and parkway strips between sidewalk and street are lush with birdsong, flowers and food-producing plants. 7 simple and eco-friendly things you can do to help protect our planet 2022-01-11T05:00:00Z The hardpan streets had cuttingly sharp edges, but they also glinted with mica, which as a kid struck me like treasure — if you could dig it out, wouldn’t it be silver dust? Perspective | Beneath 9/11’s terrible smoke, a flash of gold 2021-09-11T04:00:00Z On the 13th, he couldn’t get a 5 1/2-foot eagle putt to fall after hitting a 208-yard second shot from the desert hardpan. Jordan Spieth shoots 61, raises volume at Phoenix Open 2021-02-06T05:00:00Z Instead it was nothing but hardpan and sand hills. Perspective | No crowds meant you could hear the players at the Match II, and some of it was revealing 2020-05-25T04:00:00Z The ball kicks up gray dust on the hardpan, and the man says, “Hurry!” Perspective | Watching kids play in the neighborhood buoys spirits the way sports once did 2020-04-11T04:00:00Z He used to play golf on hardpan called the Cabbage Patch. He wanted to talk to the president. So he stormed Augusta National - Golf Digest 2020-03-27T04:00:00Z Greens are slow and bumpy, and the areas between fairways and desert waste are a hybrid of hardpan and crabgrass. The best bargain in Las Vegas is a former PGA Tour stop where big dreams, bad luck and broken promises abound - Golf Digest 2019-10-23T04:00:00Z Aug. 12: Turns back the clock Woods was two under through eight, but the party didn't start until the ninth, when Woods hit an approach from cart-path hardpan to 10 feet. Tigermania 2018: The spectacular highs and lows of (arguably) the most emotional golf season ever - Golf Digest 2018-12-14T05:00:00Z “The silty sand we used to cap the site just turned to hardpan when exposed to the sun, and turned to mud whenever it rained.” Trinity Forest is presented with Golf Digest's 2018 Green Star environmental award - Golf Digest 2018-04-22T04:00:00Z “The course is very pleasing to the eye with hardpan and wire grass lining the fairways against the backdrop of the tall pines.” Pinehurst Resort No. 2 - Golf Digest 2017-01-04T05:00:00Z Over here, the sodium stadium lights glint on the scarred hardpan that was once a vibrant community, before it was bulldozed to make room for the Rio Games. Rio Olympic Games 2016 Live Updates In this 2015 photo provided by the Kahoolawe Island Reserve Commission, restoration specialist Paul Higashino teaches volunteers about the challenges of planting the hardpan at the Hakioawa Watershed on Kahoolawe, Hawaii. Future funding murky for Hawaiian island used as bomb range 2016-06-02T04:00:00Z Ron Suppes said he tried to limit it to one pass, and he didn’t want to create hardpan soil. Kansas famers fight weed war as herbicide resistance grows 2015-12-18T05:00:00Z The golf course is a raggedy 2,700 yards, par 33, with thick rough and hardpan fairways. The World's Most Remote Golf Course 2015-07-20T04:00:00Z Between fairways and tree lines, they established vast bands of native hardpan sand dotted with clumps of wiregrass and scattered pine needles. Pinehurst Resort No. 2 - Golf Digest 2017-01-04T05:00:00Z I remember watching that thing skip along the hardpan between the trees a few times, then dive into the weeds. Rory's club toss was a classic 2013-10-16T04:00:00Z So I'm used to hitting out of sand and hardpan with, we call it weeds where I grew up. 'Rejoicing' Watson develops consistency in his game 2014-06-10T04:00:00Z Although necessary, the compaction creates a type of soil so firm that experts call it hardpan. - The Washington Post The land in that county is underlaid with a hardpan about four inches from the surface, and had not raised a crop for two years. The Conquest The Story of a Negro Pioneer 2012-03-26T02:00:32.910Z There are clay, or, as some call them, hardpan banks to the upper Sacramento River, which are from a quarter of a mile to a mile apart. Health, Happiness, and Longevity Health without medicine: happiness without money: the result, longevity 2012-03-22T02:00:38.537Z Probably, but what if the hardpan is a depression next to a green? Rough Treatment Will Toughen No. 2 2010-09-07T04:00:00Z Material of this character found in the natural state, commonly known as hardpan, makes, when properly applied, a very solid and durable surface. The Future of Road-making in America She stands “on hardpan,” to use a phrase common to the Pacific slope. Belford's Magazine, Volume II, No. 8, January, 1889 Only hardpan and alkali land could be bought in California at that price. A Stake in the Land I hate to use a single cent of it for anything else, but the fact is just now I’m right down to the hardpan.” Santa Fé's Partner Being Some Memorials of Events in a New-Mexican Track-end Town Coore and Crenshaw don't want "waste bunkers," they want areas of "hardpan" so errant shots might bounce and roll into pine trees. Rough Treatment Will Toughen No. 2 2010-09-07T04:00:00Z Where blue gravel or hardpan and clean bank gravel are procurable, a good road may be made by mixing the two together. The Future of Road-making in America Of the soils not adapted to it, deep sandy lands, soils underlaid with quicksand close to the surface, soils with hardpan subsoil, wet, sour, poorly-drained lands, and stiff, pasty clays, may be mentioned particularly. The Pecan and its Culture Too often these are stated in extremely crude and arbitrary terms, such as rock, hard rock, hardpan, earth, dirt, etc., without regard to the actual variety of materials to be dealt with. The Economic Aspect of Geology Even the best inheritance cannot prevail against hardpan or worn-out soil. Northern Nut Growers Association Report of the Proceedings at the Thirty-Seventh Annual Report Wooster, Ohio, September 3, 4, 5, 1946 Excavating and Handling Material.—The excavation of the wells is done by hand, using shovels and picks, and, in the hardpan, special grubs made by A. J. Pement and George Racky, Chicago blacksmiths. Concrete Construction Methods and Costs I followed the hole down through hardpan to a depth of three feet, and back for over ten feet, where at last I found Mrs. Owl sitting on her nest of fresh eggs. Ohio Arbor Day 1913: Arbor and Bird Day Manual Issued for the Benefit of the Schools of our State Another young grove is proving that walnuts do well on clayey hill land of buckshot nature, where the drainage is good and there is no rock or hardpan. Walnut Growing in Oregon Good crops will not be obtained on soils underlaid with hardpan which comes up near the surface, whatsoever the nature of the top soil may be, since the roots cannot penetrate these. Clovers and How to Grow Them Ellen smiled to see her, with Loll at her heels, running hither and thither, expecting any moment to come upon large, brassy-looking lumps resting like eggs on the hardpan. Where the Sun Swings North Some engineers specify three rings to be used to each set of lagging below the top set until hardpan is reached, then two rings for each of the remaining sets from hardpan to rock. Concrete Construction Methods and Costs This high land is heavy clay underlaid with considerable hardpan. Northern Nut Growers Association, report of the proceedings at the sixth annual meeting Rochester, New York, September 1 and 2, 1915 Colonel Henry Dosch, the pioneer walnut grower of Oregon, who has experimented rather thoroughly, even goes so far as to claim that rocky soil is not objectionable, providing there is no hardpan. Walnut Growing in Oregon Three persons worked together, one to clear off the sand on the ground to within six inches of the hardpan. The Adventures of a Forty-niner An Historic Description of California, with Events and Ideas of San Francisco and Its People in Those Early Days "Queer for hardpan to break up like that," muttered Ronicky, cutting into the surface beneath the patch, with the point of his hunting knife. Ronicky Doone This is, of course, to insure against disaster from great pressure of the swelling clay above the hardpan strata, and may or may not be necessary. Concrete Construction Methods and Costs On most of the estate the soil is thin, varying in color from a light gray to a yellow red, with below a red clay hardpan almost impervious to water. George Washington: Farmer Do you consider soil which is from 4 to 6 feet deep to hardpan of sufficient depth for alfalfa? One Thousand Questions in California Agriculture Answered If streaks of loose gravel or layers of hardpan are near the surface, water may be lost to the plant roots. Dry-Farming : a System of Agriculture for Countries under a Low Rainfall Some of the farmers down here tell me confidentially that "hardpan" has been found on their neighbors' farms, but I have not talked with any one who has any on his own farm. The Story of the Soil; from the Basis of Absolute Science and Real Life, If very impervious, a thick, dense deposition like this may be called hardpan. Gardening Without Irrigation: or without much, anyway The soil was light sand with a clay hardpan three feet down. Three Acres and Liberty A deepening of the available soil is usually accomplished by dynamiting, especially so if the hardpan is underlaid by permanent strata. One Thousand Questions in California Agriculture Answered Especially where the soil is poor in lime is the clay worked down to form a somewhat clayey hardpan. Dry-Farming : a System of Agriculture for Countries under a Low Rainfall Elsewhere the hardpan or bedrock must have been exceptionally level and near the top of the ground. The Land of Footprints There is on an average from two to three feet of soil on top of hardpan and hardpan is about two feet thick. One Thousand Questions in California Agriculture Answered Will water drain off the low checks if the hardpan is dynamited, and will this land grow alfalfa with profit? One Thousand Questions in California Agriculture Answered I find this entire district underlaid with hardpan at various depths, from 1 to 6 feet down, and of various thicknesses. One Thousand Questions in California Agriculture Answered It is fortunate, however, that in the great majority of instances this hardpan gradually disappears under the influence of proper methods of dry-farm tillage. Dry-Farming : a System of Agriculture for Countries under a Low Rainfall Yes; much of the hardpan in your district is thin enough and underlaid by permeable strata so that drainage is readily secured by breaking up the hardpan. One Thousand Questions in California Agriculture Answered Sweet clover will grow anywhere, from a river sandbar to an uncovered upland hardpan, but it will not do much if your vacant spots are caused by alkali. One Thousand Questions in California Agriculture Answered Such treatment would render your soil mellow, and, in connection with blasting of the hardpan to prevent accumulation of surplus water over it, would accomplish the transformation which you desire. One Thousand Questions in California Agriculture Answered This hardpan is more or less porous and seeps up water to some extent, but is too hard for roots to penetrate. One Thousand Questions in California Agriculture Answered Deep plowing and proper tillage, which allow the rain waters to penetrate the soil, gradually break up and destroy the hardpan, even when it is 10 feet below the surface. Dry-Farming : a System of Agriculture for Countries under a Low Rainfall If, by digging, you encounter hardpan, or clay, dynamiting may be very profitable. One Thousand Questions in California Agriculture Answered But if your good soil is really only four feet deep and hardpan continuous below, the blast might cause fissures which would prevent standing water in the upper stratum. One Thousand Questions in California Agriculture Answered Are other crops affected by hardpan being so close to the surface? One Thousand Questions in California Agriculture Answered Four or five feet of good soil over a hardpan, which was somewhat porous, is likely to be satisfactory for orange planting. One Thousand Questions in California Agriculture Answered If a hardpan is present, the land must be fallowed more carefully every other year, so that a large quantity of water may be stored in the soil to open and destroy the hardpan. Dry-Farming : a System of Agriculture for Countries under a Low Rainfall Alfalfa will penetrate some kinds and thicknesses of hardpan when it is kept moist, but not too wet, to encourage root growth. One Thousand Questions in California Agriculture Answered We could never understand why people do not grow more of it on shallow land over hardpan which is free from alkali and not irrigated too much at a time. One Thousand Questions in California Agriculture Answered It is red adobe soil and there is hardpan in it. One Thousand Questions in California Agriculture Answered There has been trouble from hardpan too near the surface and from the occurrence of a hardpan too rich in lime, which has resulted in yellow leaf and other manifestations of unthrift in the tree. One Thousand Questions in California Agriculture Answered Nevertheless, the farmer should make sure whether or not the hardpan does exist in the soil and plan his methods accordingly. Dry-Farming : a System of Agriculture for Countries under a Low Rainfall How near may the hardpan be to the surface before I have to blast it? One Thousand Questions in California Agriculture Answered Blasting would help if there is a moist substratum below the hardpan and might enable you to grow many fruits. One Thousand Questions in California Agriculture Answered Presumably your rainfall is too small for fruit unless you strike underflow below the hardpan. One Thousand Questions in California Agriculture Answered What detriment is hardpan if 14 inches below the surface and in some places 12 inches? One Thousand Questions in California Agriculture Answered Such deposits are not to be classed with the hardpans that occur normally wherever the rainfall is small. Dry-Farming : a System of Agriculture for Countries under a Low Rainfall In planting trees where hardpan is four feet from the surface is it necessary to blast the hardpan, or is there no benefit derived by the blasting? One Thousand Questions in California Agriculture Answered I have land which is underlaid with hardpan two or three feet deep and this in turn is underlaid with sand or sandpan. One Thousand Questions in California Agriculture Answered It might do other things good or bad, according to conditions prevailing under the hardpan. One Thousand Questions in California Agriculture Answered If such a soil should be selected for fruit trees at all, the breaking through the hardpan by dynamite or otherwise is desirable, and irrigation will be, probably, indispensable. One Thousand Questions in California Agriculture Answered If there is too much alkali or hardpan, or if planted too late, the same results will be had with any sort of rhubarb. One Thousand Questions in California Agriculture Answered |
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