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Registros recuperados: 12 | |
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Smith, J.H.; Hayden, C.W.. |
Irrigation with sugarbeet processing waste water was studied at three locations for 2 or 3 years where perennial grass and alfalfa were irrigated by flooding specially graded fields. Experimental sites were scheduled for irrigation at intervals of 1, 2, or 4 weeks. This schedule was maintained for the first year until the weekly irrigated plots were discontinued because of excessive loading. Waste water was sampled twice weekly from the sugar factories, and water samples were extracted from the soil at depths of from 15 to 150 cm each time the fields were irrigated. All water samples were analyzed for chemical oxygen demand, total nitrogen, phosphorus, potassium, electrical conductivity, calcium, magnesium, sodium, sodium absorption ratio,... |
Tipo: Technical Bulletin |
Palavras-chave: Sugarbeet; Mass Import - autoclassified (may be erroneous). |
Ano: 1980 |
URL: http://eprints.nwisrl.ars.usda.gov/1132/1/450.pdf |
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Smith, Jay H.; Robbins, C.W.; Bondurant, J.A.; Hayden, C.W.. |
Irrigation with potato processing waste water was studied for 3 years at five locations in southern Idaho. Three of the potato processors surface irrigated and two sprinkled land planted to perennial grasses. The processing season began in October and continued into the following summer. Samples of 24-hour composited waste water and soil water, extracted from depths of 15 to 150 cm, were obtained monthly throughout the year. Analyses were made on all water samples of sufficient volume for chemical oxygen demand (COD), NO3 , total N, total P, ortho P, hydrolyzable P, K, Na, Ca, Mg, Cl, HCO3 , SO4 , electrical conductivity, and pH. Water applications ranged from 160 to 490 cm per year, total N from 1,000 to 2,200 kg, P from 150 to 630 kg, and... |
Tipo: Technical Bulletin |
Palavras-chave: Potato; Mass Import - autoclassified (may be erroneous). |
Ano: 1978 |
URL: http://eprints.nwisrl.ars.usda.gov/1131/1/420.pdf |
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Registros recuperados: 12 | |
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