نتایج جستجو برای: nutrient properties

تعداد نتایج: 933599  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده علوم پایه 1391

one of the applications of nanotechnology is use of carbon nanotubes for the targeted delivery of drug molecules. to demonstrate the physical and chemical properties of biomolecules and identify new material of drug properties, the interaction of carbon nanotubes (cnts) with biomolecules is a subject of many investigations. cnts is a synthetic compound with extraordinary mechanical, thermal, el...

2016
Wen-Jie Hu Yu Zhang

The response of plant species composition, diversity and soil nutrient availability to different canopysizes and age gaps in a Pinus Massoniana plantation were surveyed in Taizishan, Hubei province, central China. The soil chemical properties of 27 gaps and 3 non-gaps were measured and compared. The study objectives were: (a) confirm whether and when nutrient pulses emerged in small gaps; (b) d...

1999
John A. Parrotta

Tree growth, biomass productivity, litterfall mass and nutrient content, changes in soil chemical properties and understory forest succession were evaluated over a 8.5-year period in singleand mixed-species (50 : 50) plantations of two N2-®xing species, Casuarina equisetifolia and Leucaena leucocephala, and a non-®xing species, Eucalyptus robusta. At the optimal harvest age for maximum biomass ...

Journal: :International Journal of Current Microbiology and Applied Sciences 2018

2001

Site classification in the biogeoclimatic ecosystem classification system is based on three differentiating properties: climatic regimes (expressed by biogeoclimatic subzones or variants), soil moisture regimes (SMRs), and soil nutrient regimes (SNRs). A SNR represents a segment of a regional soil nutrient gradient, i.e., soils which provide similar levels of plant-available nutrients over a lo...

Journal: :International Journal of Wildland Fire 1996

Journal: :JOURNAL OF THE JAPANESE ASSOCIATION OF RURAL MEDICINE 1984

2018
Zhiying Liu Taogetao Baoyin Junjie Duan Guofeng Yang Juan Sun Xiliang Li

Identifying the linkages between nutrient properties and plant size is important for reducing uncertainty in understanding the mechanisms of plant phenotypic plasticity. Although the positive effects of grazing exclusion on plant morphological plasticity has been well documented, surprisingly little is known about the relationship of nutrient strategies with plant shoot size after long-term gra...

Journal: :تحقیقات آب و خاک ایران 0
سیدحمیدرضا صادقی استاد/ دانشگاه تربیت مدرّس حسین خیرفام دانشگاه تربیت مدرس مهدی همایی دانشگاه تربیت مدرس بهروز زارعی دارکی دانشگاه تربیت مدرس

runoff production process is a key hydrological component illustrating watersheds health. water infiltration in soil is also one of the determinant factors on runoff generation for which many techniques were used to improve it. however, the role of microorganisms for the improvement of water infiltration in soil has been less considered. the present study therefore tried to investigate the effe...

2004

The parties involved in trading feed grains and other feed materials are normally aware of the relationships of the difference of their external appearance with their nutrient composition and usefulness. Several reports are available on nutrient composition of DDGS and its nutritional evaluation in different animal species. Some manufacturers and the University of Minnesota have published data ...

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