PROPERTIES OF GRANULAR ORGANO-MINERAL FERTILIZER AND THE INFLUENCE OF ITS APPLICATION ON SOME CHEMICAL PROPERTIES OF THE SOIL IN AN APPLE PLANTATION, JONATHAN VARIETY

被引:0
|
作者
Nagy, Elena Mihaela [1 ]
Nicola, Claudia [2 ]
Paraschiv, Mihaela [2 ]
Mihalache, Marius Andrei [1 ]
机构
[1] INMA Bucharest, Natl Inst Res Dev Machines & Installat Designed A, 6 Ion Ionescu de la Brad Blvd,Dist 1, Bucharest, Romania
[2] Res Inst Fruit Growing Pitesti Maracineni, 402 Marului Str, Maracineni 117450, Pitesti, Romania
来源
关键词
biosolid; organo-mineral; fertilizer; properties; soil; SEWAGE-SLUDGE COMPOST; ALUMINUM; TOLERANCE;
D O I
暂无
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The physical-mechanical properties, as pH and compressive strenght, determined for the fertilizer granules obtained by enriching the compost from urban sludge with mineral fertilizers with N, P, K, fall within the norms imposed on organo-mineral fertilizers. Applying organo-mineral fertilizer to acidic soil in an apple orchard improved the physicochemical properties of the soil. The experimental factor was the fertilizer dose, placed randomly, in five variants and four repetitions. One year after fertilization, the soil reaction was significantly improved (from pH = 5.4 to pH = 5.80). The mobile phosphorus content in the soil increased significantly in the fertilized variant with 40 t fertilizer / ha. The humified organic matter was at a high level in variant with 60 t/ha (humus = 4,25%) compared to the control variant (humus = 1.58%).
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页码:162 / 167
页数:6
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