Environmentally Friendly Non‐Metal Solar Photocatalyst C 3 N 4 for Efficient Nitrogen Fixation as Foliar Fertilizer

2020 ◽  
Vol 5 (26) ◽  
pp. 7720-7727 ◽  
Author(s):  
Yifan Liu ◽  
Xiuying Huang ◽  
Zirui Yu ◽  
Lulu Yao ◽  
Shanshan Guo ◽  
...  
Author(s):  
Umair Riaz ◽  
Laila Shahzad ◽  
Wajiha Anum ◽  
Anam Waheed

Beneficial microbes are used as the best alternative against the synthetic fertilizers and pesticides. The beneficial microbes not only help with plant growth, nutrition uptake, nitrogen fixation, but also help in acquiring the ions, not freely available to plants to uptake; these microbes also guard the plants by secreting toxic chemicals by inducing defense systems against pathogens. These microbes can provide best choice to look forward to sustainable agriculture and sustainable ecosystem. The addition of soil inoculants in the form of microorganisms or bio stimulants promise more environmentally friendly approaches for augmenting crop yields. The crop becomes less reliant on chemical fungicides and herbicides as many strains of microorganism have abilities of controlling pests. In this chapter, the interaction of beneficial plant bacteria, bio stimulants, effects on native microbial communities, and bacteria influencing economically important crops are discussed.


Author(s):  
Keila Fernanda Raimundo ◽  
Thainá Aparecida Rafael Silva ◽  
Ana Maria Da Silva ◽  
Otavio Akira Sakai

Helianthus annuuss L. is an annual oilseed crop that grows well in various types of soil. Sunflower oil can be used for several purposes, including human consumption, biodiesel production, and as an ingredient in cosmetics, pharmaceuticals, and veterinary products. Sewage sludge application can provide essential nutrients for plant development. This study aimed to determine the efficiency of ethanol and hexane in extracting sunflower oil and assess the effects of sewage sludge application and inoculation with Azospirillum brasilense on sunflower oil yield. Sunflower oil was obtained from dried ground seeds by Soxhlet extraction. Thrity-eigth samples were used and the experiment was carried out in a completely randomized block design. Each treatment had four repetitions. The following doses were applied: 0 (control); 5,000; 10,000; 20,000; and 40,000 kg/ha sewage sludge. Seeds were either inoculated (150 mL per 50 kg of seed) or not. Hexane and ethanol did not differ in extraction efficiency. The seeds inoculated with the bacteria and the presence of sewage sludge showed a higher yield, being 42% with higher doses of sewage sludge. The results show that ethanol, an environmentally friendly and sustainable solvent, is as efficient in extracting sunflower oil as hexane. Sludge fertilization and inoculation of sunflower with A. brasilense improve oil yield, probably by enhancing nitrogen fixation and uptake. The results show that ethanol, an environmentally friendly and sustainable solvent, is as efficient in extracting sunflower oil as hexane. Sludge fertilization and inoculation of sunflower with A. brasilense improve oil yield, probably by enhancing nitrogen fixation and uptake.


2019 ◽  
Vol 7 (24) ◽  
pp. 14462-14465 ◽  
Author(s):  
Tengfei Li ◽  
Xudong Yan ◽  
Lujun Huang ◽  
Jinghan Li ◽  
Lulu Yao ◽  
...  

Due to its fuel-efficient and environmentally friendly nature, the electrocatalytic nitrogen reduction reaction (NRR) has drawn significant attention.


WRPMD'99 ◽  
1999 ◽  
Author(s):  
Larry A. Roesner ◽  
Robert W. Brashear

INEOS OPEN ◽  
2020 ◽  
Author(s):  
N. A. Samoilova ◽  

The enzyme-containing magnetic composites are presented. The magnetic matrix for enzyme immobilization is obtained by sequential application of an amine-containing polysaccharide—chitosan and a synthetic polymer—poly(ethylene-alt-maleic acid) to the magnetite microparticles to form the interpolyelectrolyte complex shell. Then, the enzyme (trypsin) is immobilized by covalent or noncovalent binding. Thus, the suggested composites can be readily obtained in the environmentally friendly manner. The enzyme capacity of the resulting composites reaches 28.0–32.6 mg/g. The maximum hydrolysis rates of the H-Val-Leu-Lys-pNA substrate provided by these composites range within 0.60·10–7–0.77·10–7 M/min.


2015 ◽  
Vol 525 ◽  
pp. 41-51 ◽  
Author(s):  
PLM Cook ◽  
V Evrard ◽  
RJ Woodland

Author(s):  
S.F. Ledgard ◽  
G.J. Brier ◽  
R.N. Watson

Clover cultivars grown with ryegrass were compared in an establishment year under dairy cow grazing. There was no difference in total annual productton but summer production was greater with Pawera red clover and with Kopu or Pitau white clovers. Clovers differed little in the proportion of nitrogen fixed, except during summer when values were highest for Pawera. Pawera was less prone to nematode attack than white clover cultivars but was more susceptible to clover rot. Resident clovers and high buried seed levels (e.g., 11-91 kg/ha) made introduction of new clover cultivars difficult. Sown clovers established best (50-70% of total clover plants) when drilled into soil treated with dicamba and glyphosate. Keywords: white clover, red clover, nematodes. nitrogen fixation, pasture renovation


2020 ◽  
pp. 9-12
Author(s):  
Viktor E. Lyubimov ◽  

Health of dairy cows ensures human health, so it is important that dairy products do not contain antibiotics that are used to treat any inflammation, including mastitis. In Russia at present, the problem of mastitis in cows exists with both attached and loose housing of cows. Mastitis of dairy cows are the great problem in milking husbandry. Losses from mastitis in milk yield can reach 15-20%. The main reasons for the occurrence of nonspecific mastitis of cows are the shortcomings of the working components of the milking machine: the degree of deterioration of the nipple rubber and the violation of machine milking technology (the reduction in pre-milking time and vacuum fluctuations account for 70% of all causes). Treatment of mastitis with antibiotics is effective, but not environmentally friendly and unacceptable. For the treatment of inflammation of the udder, it is necessary to use more environmentally friendly methods of treatment, one of which is the exposure to ultra-high frequency electromagnetic field tested by medicine. Use of three types of medical-mobile milking machines with the same method of exposure to ultrahigh-frequency electromagnetic fields on cow's nipples through electrodes in milking cups: LPDA-1-UHF, LPDA-2-UHF and LPDA-UHF-30 M, is described in the article. Author proved that cows with subclinical forms of mastitis recovered faster during milking with exposure to the ultrahigh frequency than when treated by antibiotics, and milking with the ultrahigh frequency device helps to recover 82% of the affected quarters with clinical forms and 100% of cows with subclinical forms of mastitis or with udder irritation. The high efficiency of the method of exposure to electromagnetic fields of the ultrahigh frequency during machine milking by means of medical-mobile milking machines LPDA-UHF for the prevention and treatment of mastitis of cows was shown.


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