Results 211 to 220 of about 120,054 (264)

Soil Nutrients (Soil Fertility)

1999
Under the section on “Soil Aeration” (Chapter 4), it was explained that all living plants respire. This is the process where oxygen is used to burn food into carbon dioxide and water. Now we will consider another process used by green plants to manufacture their own food called “photosynthesis,” In photosynthesis, carbon dioxide and water are used ...
openaire   +1 more source

Effects of forest harvesting nutrient removals on soil nutrient reserves

Oecologia, 1986
Intensive harvesting of native eucalypt forests is carried out in the Eden area in the south east coastal region of New South Wales, Australia. Soil nutrient capital and nutrient removals in forest harvesting were estimated together with potential impacts of these removals on the nutrient capital balance.
John, Turner, Marcia J, Lambert
openaire   +2 more sources

Study on quantitative retrieval of soil nutrients

2011 IEEE International Geoscience and Remote Sensing Symposium, 2011
Soil spectral reflectance is affected by soil physicochemical characteristics and the physical basis of the soil remote sensing. Generally, the impact factors of the soil spectral features include water content, organic matter content, iron oxides content, physical composition and the parent material.
Heng Dong, Chao Chen, Jinliang Wang 0004, Qiming Qin, Hongbo Jiang 0001, Ning Zhang, Mingchao Liu   +6 more
openaire   +1 more source

Soil microbes and the availability of soil nutrients

Acta Physiologiae Plantarum, 2013
It is likely to provide plants with their necessary nutrients using chemical and biological fertilization. Although chemical fertilization is a quick method, it is not recommendable economically and environmentally, especially if overused. Biological fertilization is the use of soil microbes including arbuscular mycorrhizal fungi and plant growth ...
openaire   +1 more source

Soil nutrient availability

1989
Many methods have been developed for assessing the availability of soil nutrients, but for a variety of reasons none are universally applicable. In this chapter, we discuss the conceptual basis for measuring nutrient availability and describe the strengths and limitations of some of the methods for assessing nonagricultural soils.
Dan Binkley, Peter Vitousek
openaire   +1 more source

The Availability of Soil Nutrients

1964
In the foregoing discussion of the physical and chemical properties of soil attention has been drawn to the important part played by clay minerals and organic matter, with its end product humus, in regulating soil processes. In the course of this exposition nutritive elements have been referred to in a general way.
openaire   +1 more source

Soil carbon dynamics and nutrient cycling.

2014
The quantity of organic carbon in soil and the quantity and type of organic inputs have profound impacts on the dynamics of nutrients. Soil organic matter itself represents a large reservoir of nutrients that are released gradually through the action of soil fauna and microorganisms: this is especially important for the supply of N, P and S to plants ...
Powlson, David S., Cai, Zucong, Lemanceau, Philippe   +2 more
openaire   +2 more sources

Nutrient cycling in soils

2018
Sustainable agricultural systems must enable profitable production of sufficient high-quality crops to meet human demands while simultaneously minimising off-site impacts. Though simple chemical equilibrium plays a part, nutrient cycling processes in soil are largely the outcome of biochemical processes resulting from the activity and interactions of a
openaire   +1 more source

Nutrient Management of Soil Grown Crops

2009
The management of the fertilization of soil grown crops in greenhouses can be distinguished in the addition of fertilizers before cultivation, the base dressing and those added during the cultivations period of the crops, the top dressing. The growing period of the crops in greenhouse production varies strongly.
Sonneveld, C., Voogt, W.
openaire   +1 more source

Nutrient Budget and Soil Nutrient Status in Greenhouse System

Agricultural Sciences in China, 2010
This paper is based on nutrient budget and its effects on soil nutrient status in typical greenhouse system in China to provide a basis for raising the utilization rate of fertilizers and maintaining the sustainable development of agriculture in the greenhouse.
Hai-ying YU, Ting-xuan LI, Xi-zhou ZHANG
openaire   +1 more source