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Excessive nitrogen
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Agricultural yield is closely associated with nitrogen application. Thus, reducing the application of nitrogen without affecting agricultural production remains a challenging task. To understand the metabolic, physiological, and morphological response of wheat (Triticum aestivum) to nitrogen deficiency, it is crucial to identify the genes involved in the activated signaling pathways.
13p
vijichea2711
28-05-2021
10
1
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Boron is concerned with the precipitation of excess cation, buffer action, maintenance of conducting tissues and help in absorption of nitrogen. Its primary role is concerned with metabolism both with its uptake and efficient use in plants. Boron also affect the cambial and phloem tissues of storage root or stem apical meristems and leaves, vascular cambia of fruits and other organs which are capable of meristematic activities (Singh, 1991).
6p
chauchaungayxua10
19-03-2021
13
2
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This study, therefore, aimed to investigate the application of biochar from agricultural wastes to remove the excess nitrogen in domestic wastewater. In particular, this work examined the utilization of biochar obtained from coffee husk pyrolyzed at 350 oC to adsorb ammonium. Besides, adding biochar could be a simple and effective method for the initiation of activated sludge granulation to facilitate the treatment of low C/N ratio wastewater.
11p
cothumenhmong9
04-01-2021
13
2
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Cotton (Gossypium hirsutum L.) is the most important fibre crop of the world with significant role in Indian agriculture, industrial development, employment generation and contribution to the national income. It is mainly grown for textile fibre, feed, fuel and edible oil. Despite a firm competition from synthetic fibres, cotton continues to enjoy a place of prime importance in the textile industry.
12p
nguathienthan4
21-04-2020
16
0
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Overuse of nitrogen fertilizers is often a major practice to ensure sufficient nitrogen demand of high– yielding rice, leading to persistent NH4 + excess in the plant. However, this excessive portion of nitrogen nutrient does not correspond to further increase in grain yields.
15p
viuchiha2711
21-04-2020
11
1
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Long term exhaustive cropping practice and indiscriminate use of poor quality water can result in accumulation of salts and sodium that adversely affect crop growth. Salinity and sodicity are the major soil degradation issues primarily in arid and semi-arid regions of the world. The sustainability of agriculture is a matter of deep concern due to widespread removal of nutrients in excess of their application resulting in depletion of major soil nutrient reserves. Nitrogen (N) use efficiency of applied N in saline and sodic soils is low.
10p
nguaconbaynhay4
22-03-2020
13
2
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Fourteen representative mapping units representing upland, midland, mid upland, lowland and near lowland in Jantapur-1 micro-watershed of Lingasugur taluk, Raichur district in Karnataka were characterized and assessed for their nutrients content. The soils were shallow in upper slope and deeper in the lower slopes. Colour of the soil is reddish brown to very grayish brown, moderately to excessive drained, neutral to strongly alkaline in reaction, low to medium in organic carbon and medium to high in cation exchange capacity with wide textural variations.
12p
nguaconbaynhay3
07-02-2020
7
1
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Physical and biochemical properties of apple orchard soils of different productivities (orchard A: 30 t∙ha−1; orchard B: 20 t∙ha−1) were analyzed. Most of the physical properties were similar in both orchards. In orchard A, the horizontal saturated hydraulic conductivity at 10-cm depth was 16.42 cm∙day−1, and was about four times higher tha n that in orchard B (4.41 cm∙day−1).
8p
mentospurefresh
29-11-2019
13
1
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Uric acid is a key product of the metabolism of purines, the backbone of Desoxyribonucleic acid (DNA). Being a fundamental component of every living cell, the total Earth’s DNA base pairs is estimated to weigh 50 billion tons [1], which translates into a huge abundance of uric acid in our planet. It would be naive to think of all these virtual heaps of uric acid as useless, inert waste produces. Indeed, they are not. Uric acid in the environment is a rich source of nitrogen (33% of its weight) to plant life, hence its important role in the universal food chain.
4p
trinhthamhodang1
14-11-2019
13
0
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The experiment was carried out to observe plant growth under different nitrogen level and evaluate effect of nitrogen combination with phosphorus and potassium on carrot, cabbage, onion, potato, and tomato in Tsukuba International Cooperation Center. Root weight of carrot decreased when nitrogen was applied excess, at 200% It was highest at 100% in both with PK and without PK.
10p
vihana2711
02-07-2019
32
1
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A nondeterministic finite automaton was designed to monitor enzymatic regulation and detoxification of excess ammonia in the urea cycle and its disorders. The designed machine is used for the diagnosis of deficiency and for regulating the expression of any of the enzymes involved with acceptance and rejection states in the urea cycle.
5p
vikimsa
22-02-2019
19
0
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This study investigated the relationship between nitrogen and carbon in the thalli of the lichen Evernia prunastri, with an emphasis on the role of the C/N balance in the response of this species to N excess.
6p
vivant2711
01-02-2019
21
1
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Chemical fertilizers play a significant role in increasing plant production however, they may have a negative impact on soil fertility and cause environmental degradation in cases of excessive use. In addition, the highest levels in chemical fertilizer use have already been reached, and further yield increases do not seem possible.
10p
vimb123
11-01-2019
19
1
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How much of a supplemental nutrient to apply should be determined based on prior experience of the farmer, obser- vation of plant growth, knowledge of soil characteristics such as organic matter, cation exchange capacity, phosphorus and potassium supplying ability, and base saturation, knowl- edge of crop needs and field history, and understanding of the nutrient supplying power of the material to be used. An example of nutrient application rates is provided in Table 2. Overapplication can cause problems in crop production as well as in the environment.
20p
conduongdinhmenh
07-05-2013
83
6
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This study was aimed at investigating the physiological role of ferredoxin-glutamate synthases (EC 1.4.1.7), NADH-glutamate synthase (EC 1.4.1.14) and carbamoylphosphate synthetase (EC 6.3.5.5) in Arabidopsis. Pheno-typic analysis revealed a high level of photorespiratory ammonium, gluta-mine⁄glutamate and asparagine⁄aspartate in theGLU1mutant lacking the major ferredoxin-glutamate synthase, indicating that excess photorespiratory ammonium was detoxified into amino acids for transport out of the veins....
16p
vinaphone15
25-02-2013
38
3
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Non-point source controls washed off fields is the largest source of agricultural pollution in the United States. Farmers may utilize to reduce runoff flows and retain soil on their fields. Common techniques include contour plowing, crop mulching, crop rotation, planting perennial crops and installing riparian buffers. Nutrients nitrogen and phosphorus are typically applied to farmland as commercial fertilizer; animal manure; or spraying of municipal or industrial waste water (effluent) or sludge.
5p
tainhacmienphi
19-02-2013
86
6
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The Mangalore coast which is situated at the western part of the Indian peninsula stretching to about 22 Kms of Coastal district of Dakshina Kannada, Karnataka. The healthy condition of the aquatic system depends upon its physical, chemical and biological characteristics which actually fluctuate with season and degree of pollution. Marine ecosystem is one of the richest ecosystems (Cairns & Dickson, 1971). Industrialisation, development activities in coastal zones have placed enormous stress on habitats.
17p
tainhacmienphi
19-02-2013
43
5
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TnrA is a master transcription factor regulating nitrogen metabolism in Bacillus subtilisunder conditions of nitrogen limitation. When the preferred nitrogen source is in excess, feedback-inhibited glutamine synthetase (GS) has been shown to bind TnrA and disable its activity.
11p
cosis54
05-01-2013
32
2
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Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế, đề tài: "The effect of excess nitrogen and of insect defoliation on the frost hardiness of bark tissue of adult oaks...
12p
toshiba6
07-10-2011
59
3
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Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí lâm nghiệp đề tài: Excess nitrogen affects the frost sensitivity of the inner bark of Norway spruce...
6p
toshiba4
20-09-2011
46
2
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