نتایج جستجو برای: nutrients

تعداد نتایج: 39638  

Journal: :journal of agricultural science and technology 2014
w. jiang x. h. sun h. l. xu n. mantri h. f. lu

zinc has previously been reported to alleviate salinity stress in plants. in this study, we monitored various biomass and chlorophyll fluorescence parameters to determine the optimum zinc sulfate concentration that can be used as foliar spray to alleviate salinity stress in glycine soja. the plants subjected to a series of salinity levels (nacl concentration of 0, 100, 200, and 300 mmol l-1), a...

Journal: :journal of rangeland science 2013
somayeh naseri mohammad ali adibi seyed akbar javadi mohammad jafari mohammad zadbar

one of the ordinary methods to protect, rehabilitate, and enhance an ecosystemfunction in arid and semi-arid areas of the world is sand dune stabilization using biologicalpractices. plantation of species on the soil plays a great role in sustainable management ofthe ecosystem. this research studies the effects of cultivation of haloxylon ammodendronand atriplex canescens on physical-chemical ch...

Journal: :international journal of environmental research 2015
j. viji p. neelanarayanan

paddy straw is one of the most abundant agricultural by-products in tamil nadu, india. itcontains high amounts of cellulose and lignin. the fungal strains were isolated from naturally decomposingsites of paddy straw. eight fungal strains were isolated and later these eight fungi were used for finding outtheir potential for the degradation of lignin and cellulose content of paddy straw. among ei...

Journal: :آب و خاک 0
فلاح فلاح قلاوند قلاوند قنبریان قنبریان یدوی یدوی

abstract poultry manure contains considerable nutrients and its application to agricultural land may boost soil fertility. in order to study the effects of poultry manure and its incorporation method with soil on soil chemical properties, a field experiment was conducted at the ecological research center of zagroos, 30 kms from northeastern of khorramabad for two consecutive years (2004 and 200...

Journal: :Animal : an international journal of animal bioscience 2011
G Maxin H Rulquin F Glasser

Dietary changes alter dairy cow milk fat concentration (MFC) and yield (MFY) through modifications in the supply of nutrients, which act as precursors or inhibitors of mammary fat synthesis. The current models used to formulate dairy cow diets cannot predict changes in milk fat. The knowledge of the effects of the nutrients on milk fat would help to progress toward this prediction. To this end,...

Journal: :Endocrinology 2003
Silvana Obici Luciano Rossetti

Obesity is the result of an imbalance between energy intake and energy expenditure. Under most circumstances, the increased availability of nutrients is tightly coupled with nutrient-sensing mechanisms that in turn activate appropriate behavioral and metabolic responses. The latter responses include decreases in food intake and the production of endogenous nutrients and increased expenditure of...

2009
Yasuhiko TEZUKA Hidetake HAYASHI

Surface water of Lake Yunoko, a small eutrophic lake in central Japan, was bottled, enriched with glucose and/or mineral nutrients, and incubated for five days in the surface layer of that lake. Bacteria reacted promptly to the addition of glucose. When, however, an ample amount of glucose was added to the lake water, certain mineral nutrients, possibly nitrogen, became secondarily limiting to ...

2002
Scott R McWilliams

All vertebrates require certain amounts of energy, protein and ‘essential’ nutrients. Dietary sources of energy include carbohydrates, protein and fat. Dietary protein is necessary for satisfying an animal’s protein requirements. Certain dietary nutrients are classified as ‘essential’ because they are required for synthesis or functioning of crucial chemical compounds, yet they cannot be synthe...

2017
N. B. Comerford

The soil supports plants, is the physical determinant of root growth and extent, and is the main reservoir for plant-available water and nutrients. Therefore, the soil controls the availability of most essential plant nutrients. It regulates availability by means of biophysiochemical processes, which are functions of soil and plant properties. This chapter introduces the concept of soil nutrien...

2014
P. Seetharam M. Ramanaiah

to18 th Febrauary 2013 in the coastal waters of the Bay of Bengal. Marked variations observed with respect to almost all nutrients determined. The detectable ranges of ammonium, nitrite, nitrate, phosphate and silicate were 0.026-23.52, 0.018-0.41, 0.026-4.46, 0.18-7 and 0.37-20.31μM respectively. The higher concentrations of nutrients were observed on 15 th February 2013. Among these five nutr...

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