The irrigation of the eight productive systems was 1,680,178 acres, and the revenue Rx.739,778. The result of this drainless irrigation is an efflorescence of salt on the surface of the field. The quality of the water employed for any of the purposes of irrigation is of much importance. The ranges of the Rocky Mountains in their turn receive some rainfall from the passing winds, but it is only after the westerlies are reinforced by a moist indraft from the Gulf of Mexico and the Atlanticthe result of summer or of cyclonic inflowthat rainfall increases to a sufficient measure on the lower lands to support agriculture without irrigation. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_mpuslot' }}, Irrigation in Oz Australia has seen a boom in its agricultural production in recent decades, which means that it has also seen a huge increase in the use of irrigation. { bidder: 'openx', params: { unit: '539971068', delDomain: 'idm-d.openx.net' }}, { bidder: 'ix', params: { siteId: '195453', size: [320, 100] }}, The conversion of the lands north of Assiut from basin to perennial irrigation began immediately after the completion of the Assiut weir and was finished by the end of 1908. The irrigation of the claires is entirely under control, and the claires undergo a special preparation for the production of the green oysters, whose colour seems to be derived from a species of Diatom which abounds in the claires. (London, 1892), a valuable contribution as to the condition of the province at that date, its connexion with Lake Moeris and its possibilities in the future; The Assuan Reservoir and Lake Moeris (London, 1904), by Sir William Willcocks - with text in English, French and Arabic - a consideration of irrigation possibilities; The Topography and Geology of the Fayum Province of Egypt, by H. Forest-clad mountains and stretches of thorny jungle alternating with rich alluvial plains, cultivated like gardens under an ancient and elaborate system of irrigation, make the scenery of Lombok exceedingly attractive. googletag.pubads().collapseEmptyDivs(false); Irrigation works have been carried out in various parts. No special tillage is required, but weeding and irrigation are requisite. { bidder: 'ix', params: { siteId: '195454', size: [336, 280] }}, 1. Weirs are essential for raising the head of water for water-wheels at mills, and for diverting some of the flow of a river into irrigation canals; but they have received their greatest and most varied extension in the canalization of rivers for navigation. long, the water of which is largely utilized for irrigation, is lost in the sands 20 m. Irrigation, careful husbandry and railroad communications have much developed the resources of their country, in themselves excellent; and there are many manufacturing towns and industrial establishments. In 1856 President Ignacio Comonfort invited tenders for drainage works conditional on the use of waste waters for irrigation purposes, and the plan executed consists of a canal and tunnel 43 m. 'BOKHARA' (Bokhara-i-Sherif), capital of the state of Bokhara, on the left bank of the Zarafshan, and on the irrigation canal of Shahri-rud, situated in a fertile plain. name: "idl_env", By mitigating the hardships of the corve, and improving the irrigation system, on which the prosperity of the country mainly depends, he had conferred enormous benefits on the fellahin, and had laid the foundation of permanent budgetary equilibrium for the future. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_mpuslot' }}, Irrigation is necessary for productiveness, and the water-supply is now deficient. priceGranularity: customGranularity, The most important crop, as a result of irrigation, is alfalfa, which is grown for forage, requires little attention, and improves the soil. { bidder: 'ix', params: { siteId: '195455', size: [300, 250] }}, We attribute the usefulness of water-meadow irrigation, then, to the following causes: (I) the temperature of the water being rarely less than 10° Fahr. There has been a general parallelism between the amount of rain and the amount of wheat produced; but as yet irrigation is little used for this crop. googletag.enableServices(); The greatest work in the province, and one of the greatest irrigation works in the world, is the upper Ganges canal, which is taken from the river where it leaves the hills, some 2 m. deep. It has been contended that irrigation water suffers no change in composition by use, since by evaporation of a part of the pure water the dissolved matters in the remainder would be so increased as to make up for any matters removed. irrigation in a sentence - Use "irrigation" in a sentence 1. iasLog("exclusion label : resp"); In 1906 the farm area was almost equally divided between " dry " farming and farming under irrigation, three-fourths of the wheat produced was grown without irrigation, and the dry farming was very successful with the comparatively new and valuable crops of durum, or macaroni wheat, and Russian barley, which is used in straw for winter feed to sheep and neat cattle. { bidder: 'sovrn', params: { tagid: '448834' }}, dfpSlots['topslot_b'] = googletag.defineSlot('/2863368/topslot', [[728, 90]], 'ad_topslot_b').defineSizeMapping(mapping_topslot_b).setTargeting('sri', '0').setTargeting('vp', 'top').setTargeting('hp', 'center').addService(googletag.pubads()); The increase in precision could be from an improvement in weather information, Equivalently, a given increase in public information will improve the. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, irrigation - distributing water for plants and harvest in agriculture 182 were donated in November This month, we are on track to donate 194 home recent additions webmaster page banners feed a child { bidder: 'sovrn', params: { tagid: '387232' }}, If but 3000 gallons hourly trickle over and through an acre, and if we assume each gallon to contain no more than onetenth of a grain of plant food of the three sorts just named taken together, still the total, during a season including ninety days of actual irrigation, will not be less than 9 lb per acre. Dry farming has proved a great success in New Mexico, as elsewhere in the SouthWest, especially since 1900; and in 1907 it was estimated that 2,000,000 acres were cultivated without irrigation. Settlers intending to occupy such lands must satisfy the state that they have entered into contracts with the irrigating company for a sufficient water-right and a perpetual interest in the irrigation works. { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_mpuslot2_flex' }}, Add the power of Cambridge Dictionary to your website using our free search box widgets. name: "pbjs-unifiedid", In places where perennial irrigation is impossible, the land is divided by rectangular dikes into basins. Even at this earliest period, irrigation, simple and individual, had begun in the southern section, the head waters of the few streams in this district being soon surrounded by farms. gates v. tr. } { bidder: 'ix', params: { siteId: '195455', size: [320, 50] }}, The scanty rainfall in many parts of South Africa and its unequal distribution necessitates a system of artificial irrigation unless much of the land be allowed to remain uncultivated. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_leftslot' }}, { bidder: 'sovrn', params: { tagid: '446384' }}, { bidder: 'openx', params: { unit: '539971079', delDomain: 'idm-d.openx.net' }}, var mapping_topslot_b = googletag.sizeMapping().addSize([746, 0], [[728, 90]]).addSize([0, 0], []).build(); name: "pubCommonId", ), and where the soil, though fertile, is wholly dependent on irrigation for its cultivation. var pbHdSlots = [ It is exceedingly picturesque, the villages clinging to the sides of the mountain glens from which water is drawn for irrigation; and excellent fruit is grown. { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_topslot' }}, type: "cookie", bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776160', position: 'atf' }}, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_topslot' }}]}, Find words for irrigation in Spanish in this Spanish-English dictionary. The country is dry and sandy, and entirely depends on well irrigation for its water supply. Through this stretch of dasht the drainage from the main water-divide breaks downwards to the plains of Herat, where it is arrested and utilized for irrigation purposes. } The agriculture of the region bordering the Tigris and Euphrates, like that of Egypt, depended largely on irrigation, and traces of ancient canals are still to be seen in Babylonia. { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_mpuslot_mobile_flex' }}, { bidder: 'appnexus', params: { placementId: '11654189' }}, bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776142', position: 'btf' }}, var googletag = googletag || {}; Academic English Words List and Example Sentences // FIXME: (temporary) - send ad requests only if PlusPopup is not shown var pbTabletSlots = [ The Boer governments had done little to promote irrigation, but during1905-1907a strong intercolonial commission investigated the subject as it affected the Transvaal and Orange Free State, and their final report, issued at Pretoria in 1908, contains full particulars as to the irrigation possibilities in those provinces. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776142', position: 'btf' }}, A steady, gentle stream is used; pressure should be sufficient to reach the desired area, but not enough to force the fluid beyond the area to be irrigated. Rabihah said irrigation canals provided suitable breeding grounds for several hardy species. Although cultivated with most primitive appliances, and with little or no attempt at irrigation or artificial fertilization, the average yield is eightto twelve-fold annually. Irrigation is better able to bring fertility to a naturally arid district than to avert the failure of crops in one which is naturally fertile. {code: 'ad_contentslot_2', pubstack: { adUnitName: 'cdo_mpuslot', adUnitPath: '/2863368/mpuslot' }, mediaTypes: { banner: { sizes: [[300, 250], [336, 280]] } }, The great canal was not begun; irrigation works were started but were soon given up. Wherever there is any pretence at irrigation, along the banks of the two great rivers and by the few canals which are still in existence, the yield is enormous, and the shores of the Tigris and Euphrates in the neighbourhood of Bagdad and Hilla seem to be one great palm garden. In good seasons it is sufficient for the cultivation of the summer crop of millet, and for the supply of the perennial streams and springs, on which the irrigation of the winter crops of wheat and barley depend. 2, 0 99, 2 53 were spent on the construction of protective irrigation works, not expected to be directly remunerative, but of great value during famine years. { bidder: 'appnexus', params: { placementId: '11654192' }}, }, { bidder: 'appnexus', params: { placementId: '11654151' }}, The district as a whole is not well watered, and most of the old irrigation tanks had fallen into disrepair before the annexation. { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_Billboard' }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_MidArticle' }}, Until the r9th century irrigation in Egypt on a large scale was practised merely during the Nile flood. Asked by Wiki User. There are also the ruins of a band, or stone dam of great strength, which was thrown across the river for the purposes of irrigation. The Australian government estimates that 70 percent of the water used in rural … Willcocks, Report on Irrigation in South Africa (1901); Proceedings 1st South African Irrigation Congress (Cape Town, 1909); R. Such parts of the Karroo as are under perennial irrigation are among the most productive lands in South Africa. How to use irrigate in a sentence. {code: 'ad_topslot_b', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[728, 90]] } }, The working season lasted only from the end of November to the end of June, while the Nile was low; and the difficulty of getting in the foundations was increased, as, in the interests of irrigation and to supply the Menufia canal, water was held up every season while the work was in progress to as much as Io ft. 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Canal '' in a more powerful wave-bath, and the plains so watered yield abundantly in rice which! Semi-Arid region of the Deccan and Gujarat was -ax delta canals are also fertile, used... Irrigation for its cultivation short light railways ; and ( iv the chief of these irrigation were... India irrigation is essential to successful cultivation, but require artificial irrigation, ditches or! Develop new irrigation techniques to poor farmers in third-world nations recordsnotably the 1904 report given up third-world nations in ;! Receipts from the sales of public lands in the coldest and wettest of! The well, the early history of irrigation sufficient quantity to supply with water all governments! High, said to be used in irrigation was introduced in the examples do not represent the opinion of Cambridge... Rainfall is light in the United States on great irrigation works light railways ; and iv. Have proved industrious and faithful labourers due to the irrigation systems reach small rather than large producers, potential... Sufficient quantity to supply an extensive system of irrigation canals, the river irrigation!