51![Electrical Resistance Blocks Electrical resistance blocks, sometimes referred to as gypsum blocks, are an inexpensive and simple soil moisture measurement tool. They are useful for timing irrigations, but do not provide Electrical Resistance Blocks Electrical resistance blocks, sometimes referred to as gypsum blocks, are an inexpensive and simple soil moisture measurement tool. They are useful for timing irrigations, but do not provide](https://www.pdfsearch.io/img/e4c6a85666d2d0a98b4252eb912bf9d7.jpg) | Add to Reading ListSource URL: ucmanagedrought.ucdavis.eduLanguage: English - Date: 2008-06-23 13:32:30
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52![Gypsum Use: Soil Amendment YPSUM is an abundant natural mineral that formed when ancient seas dried up. It is quarried or mined in many parts of the world. Until fairly recently, gypsum’s value as a soil amendment was Gypsum Use: Soil Amendment YPSUM is an abundant natural mineral that formed when ancient seas dried up. It is quarried or mined in many parts of the world. Until fairly recently, gypsum’s value as a soil amendment was](https://www.pdfsearch.io/img/277d2fe2191a0b2c22957b0e923d5108.jpg) | Add to Reading ListSource URL: www.homesteadorganics.caLanguage: English - Date: 2014-08-08 14:17:08
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53![Problem Soils (Left) Large cracks in soil indicate extensive drying and shrinking of expansive clay. This type of crack appears during dry seasons. (Photo by Raymond C. Harris) (Right) Repeated shrinking and swelling of Problem Soils (Left) Large cracks in soil indicate extensive drying and shrinking of expansive clay. This type of crack appears during dry seasons. (Photo by Raymond C. Harris) (Right) Repeated shrinking and swelling of](https://www.pdfsearch.io/img/3189b423c52890d9fc823bd80b4bf438.jpg) | Add to Reading ListSource URL: azgs.az.govLanguage: English - Date: 2011-12-08 17:47:28
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54![Microsoft Word - BER-RS-013A Chloride Policy.doc Microsoft Word - BER-RS-013A Chloride Policy.doc](https://www.pdfsearch.io/img/d210399ce00b3ec6422a2c7d508beb3e.jpg) | Add to Reading ListSource URL: www.kdheks.govLanguage: English - Date: 2014-07-18 15:45:01
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55![Published online November 7, 2005 Soil Chemical Changes Resulting from Irrigation with Water Co-Produced with Coalbed Natural Gas Girisha K. Ganjegunte, George F. Vance,* and Lyle A. King Published online November 7, 2005 Soil Chemical Changes Resulting from Irrigation with Water Co-Produced with Coalbed Natural Gas Girisha K. Ganjegunte, George F. Vance,* and Lyle A. King](https://www.pdfsearch.io/img/748dbc804a4450b69d4caac60e05010e.jpg) | Add to Reading ListSource URL: www.deq.mt.govLanguage: English - Date: 2011-06-30 12:10:36
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56![Microsoft Word - Soil pH, Nov. 8, 2011 Microsoft Word - Soil pH, Nov. 8, 2011](https://www.pdfsearch.io/img/f19cb02afd28a5180357cc192ef96d90.jpg) | Add to Reading ListSource URL: www.extension.colostate.eduLanguage: English - Date: 2011-11-03 14:23:00
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57![Irish Journal of Agricultural and Food Research 44: 297–303, 2005 A laboratory study of the effects of water dissolved gypsum application on hydraulic conductivity of saline-sodic soil under intermittent ponding condi Irish Journal of Agricultural and Food Research 44: 297–303, 2005 A laboratory study of the effects of water dissolved gypsum application on hydraulic conductivity of saline-sodic soil under intermittent ponding condi](https://www.pdfsearch.io/img/1a7cec19eebea48643c5db5f8172cc3a.jpg) | Add to Reading ListSource URL: www.teagasc.ieLanguage: English - Date: 2009-04-29 10:56:45
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58![Some Bionomic and Other Characteristics of Slick-Spot Soils in Oklahoma Some Bionomic and Other Characteristics of Slick-Spot Soils in Oklahoma](https://www.pdfsearch.io/img/c4d80f75e6162f4be4b562269294171a.jpg) | Add to Reading ListSource URL: digital.library.okstate.eduLanguage: English - Date: 2009-01-09 16:59:09
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59![Chapter 7 Table 29. Composition of phosphogypsum * Agricultural Uses of Chapter 7 Table 29. Composition of phosphogypsum * Agricultural Uses of](https://www.pdfsearch.io/img/0981de8f08ffd81f78bf6542052473e6.jpg) | Add to Reading ListSource URL: www.ars.usda.govLanguage: English - Date: 2001-07-30 10:06:17
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60![Origin of Origin of](https://www.pdfsearch.io/img/2e738627a27e0c139a5b3f138fe2c150.jpg) | Add to Reading ListSource URL: digital.library.okstate.eduLanguage: English - Date: 2009-01-09 17:04:27
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