Role of fly ash and organic soil amendments on potato tuber yield and mineral contents
In this study, effects of application of high rates of (Chicken Manure; CM 5. 6, 11.2 or 22. 4 Mg·ha<-1>), or (SS), (ISS), or (FA) (each at 22. 4, 44. 8, or 89. 6 Mg·ha<-1>) on a Quincy fine sand (mixed mesic Xeric Torripsamments) was investigated on the soil properties, as well as growth, tuber yield and mineral content, of two potato cultivars (Russet Burbank: RB, and Umatilla Russet: UR). The concentrations of total Cu, organically bound Cu, and precipitate form of Cu increased with increasing rates of SS and ISS. In the case of the RB, no significant advantage was evident with application of any amendments across all rates. In the case of the UR, however, a significant tuber yield increase was evident with 11.2Mg·ha<-1> CM or 89. 6Mg·ha<-1> ISS, compared with that in the unamended treatment. In the rest of the treatments, the tuber yield was statistically similar to that in the unamended treatment. A significantly greater vegetative growth (leaves and sterns) was evident in the UR cultivar with a high rate of SS, which may, in part, explain the significant reduction in the tuber yield. However, the above trend was not evident with the RB cultivar.
Bioavailable form of metals incinerated sewage sludge sequential fractionation sewage sludge soil amendments
A. K. Alva K. Sajwan S. Pararnasivam
USDA-ARS, Prosser, WA 99350, U. S. A. Savannah State University, Savannah GA, 31404, U. S. A. Savannah State University, Savannah GA, 31404, U. S. A
国际会议
第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)
北京
英文
346-347
2007-07-15（万方平台首次上网日期，不代表论文的发表时间）