The effect on clubroot of the addition to a mineral soil of calcium carbonate, calcium sulphate and sodium carbonate was studied in two field experiments during a 3-yr period. Applications of calcium carbonate (ground limestone) at 10 or 20 t/ha increased the soil pH from 6×7 to 7×9;...
The production of steel is a very energy intensive process and the industry contributes a significant amount to global carbon dioxide (CO2) emissions. Steel production also generates steel slag, a calcium-rich waste which has few useful ... W Zappa 被引量: 6发表: 2014年 Interaction between a...
Adding selenium〆nriched plant tissue to soil causes the accumulation of selenium in alfalfaSLOW WAVE (OF DEPOLARIZATIONWOUNDINGELECTROGENIC PUMPCALCIUMBIDENS-PILOSA LGreenhouse experiments were conducted to determine selenium (Se) uptake by alfalfa (Medicago sativa L.) grown in soils amended with Se...
Sodium bicarbonate as an extractant for soil phosphate III. Effects of the buffering capacity of a soil for phosphate An index of the buffering capacity for phosphate of a group of soils was obtained by measuring adsorption of phosphate from dilute solutions of calcium chloride. The effect of bu...
The study of the distribution of cementitious materials in soil aggregates is important for understanding the formation of aggregates in soil due to the addition of soft rock rich in clay. Soft rock and sand in the ratios of 1:1(C1), 1:2(C2), 1:5(C3), an
The effect of mill closure on flocculating capability of different retention aid chemicals in alkaline papermaking of PCC (precipitated calcium carbonate) ... Takanori,Miyanishi,Shigeru,... - 《Japan Tappi Journal》 被引量: 0发表: 2001年 A QUANTITATIVE THEORY OF THE PRECIPITIN REACTION: VII. TH...
9. The effects of estrogen and androgen administered separately on the retention of calcium by the sexua... There was a significant interaction of estrogen and androgen in regard to the large increase of retention evoked by estrogen plus androgen.Robert... Robert,Haddon,Common,William,... - ...
[32]. TK and Calcium: A 2 g sample was mixed with 10 mL mixture of hydrochloric acid (HCl) and water (HCl:water =1:3), diluted the mixed sample to 100 mL, then put 50 mL filtrate into a flame photometer for determination [33]. Moisture: This was determined by the gravimetric ...
Clean Soil Air Water 2006, 34, 325–332. [Google Scholar] [CrossRef] Yamada, T.M.; Sueitt, A.P.E.; Beraldo, D.A.S.; Botta, C.M.R.; Fadini, P.S.; Nascimento, M.R.L.; Faria, B.M.; Mozeto, A.A. Calcium nitrate addition to control the internal load of phosphorus ...
Lime consists mainly of calcium carbonate and magnesium carbonate. The smaller the particle size the more effective the stone is at reacting in the soil. Lime comes in a powder and in a pelletized form such as this. In addition to correcting the soil’s acidity levels, lime also improves th...