Chemical fertilizer

Ebook "Fundamentals of soil science (8th edition)" revision of a bestselling text shows that soil is three-dimensional and dynamic. This concept is developed in the first two chapters and is built on throughout the book. Chapters 3 through 7 explore soil physical properties and water, with expanded coverage of tillage and traffic and an increased emphasis on water and wind erosion processes. Chapters 8 through 11 discuss the biological aspects of soils as well as their mineralogical and chemical properties.

382p giangdongdinh 28-05-2024 3 1   Download

The basic aim of this study was to compare the denitrification efficacy of 2,5-dichloroaniline, Ammonium Thiosulphate and their combination (1:1) with previous studies. Ammonium Thiosulphate was not used as a nitrification inhibitor in previous research. Our findings depict that there was significant variation among the chemicals, soil and levels in denitrification for early seedling growth of wheat.

8p dianmotminh02 03-05-2024 4 1   Download

The research on the structure of the phytoplankton community in relation to the physicalchemical parameters of seawater needs to be carried out to see indicators of fertility and availability of natural food in the waters that will be used as a marine aquaculture location. To find out the relationship between physico-chemical parameters and phytoplankton abundance, Principal Component Analysis (PCA) was used. Some physico-chemical parameters observed were temperature, brightness, pH, salinity, coated oxygen (DO), phosphate, nitrate, and ammonia.

7p longtimenosee06 27-03-2024 4 2   Download

Tomatoes and eggplants are foods that have a lot of nutritional values for humans. Applying farming methods to get good quality products such as being free of pathogenic microorganisms and free of heavy metals needs concerned. In this study, we analyzed cultivation soil and irrigation water samples around tomato and eggplant cultivating areas of farmers who used chemical fertilizers and pesticides.

4p vialfrednobel 21-12-2023 2 2   Download

Rosemary was used popularly in food industry; perfumery, cosmetic and pharmaceutical production. The content and chemical composition of rosemary essential oil were changed by cultivating condition aslo by content and type of fertilizer applied.

7p vialfrednobel 21-12-2023 2 2   Download

Achyranthes bidentata Blume is a precious herb. In the chemical composition of its root, saponin is the main compound that when being hydrolyzed form oleanolic acid - an active ingredient in liver cell protection, anti-tumor and antiviral agent, anti-HIV and HCV in vitro.

5p vialfrednobel 21-12-2023 4 2   Download

Continued part 1, part 2 of ebook "Handbook of agricultural economics - Vol 3: Agricultural development: Farmers, farm production and farm markets" provides readers with contents including: plant biotechnology for developing countries; markets, institutions and transaction costs; efficiency and equity effects of land markets; labor decisions, contracts and organization; fertilizers and other farm chemicals; agricultural mechanization - adoption patterns and economic impact; rural financial markets in developing countries; natural resources; soil quality and agricultural development; the eco...

419p lytamnguyet 04-08-2023 4 2   Download

Chemistry is a close combination of theory and experiment which is a bridge of the Natural Sciences such as Physics, Biology, Medicine, and Geology. Experiential learning activities using experiments in teaching chemistry play a very important role in the new general education curriculum.

13p viantman 07-04-2023 6 3   Download

In conclusion, activation by cycloheximide was the most qualified chemical for artificial activation and preimplantation development of the Bos gaurus-taurus interspecies embryo. However, H3K9me3 immunostaining can only detect the Bos gaurus pronucleus formation at the zygote stage.

8p vimalfoy 08-02-2023 5 1   Download

In order to investigate the effect of drought stress and the application of chemical and biological fertilizers of potassium and maize cultivars on micronutrient uptake, protein content, and proline changes, an experiment was conducted as a split-plot based on a randomized complete block design with three replications.

11p lyhuyenthu 31-01-2023 4 1   Download

Continued part 1, part 2 of ebook "Plant biology and biotechnology (Volume I: Plant diversity, organization, function and improvement)" provide readers with content about: pre-fertilization - reproductive growth and development; post-fertilization growth and development; seed biology and technology; mineral nutrition of plants;... Please refer to the part 2 of ebook for details!

408p langmongnhu 14-12-2022 12 3   Download

Maternal exposure to chemical fertilizer and disadvantaged maternal socio-economic status (SES) have been found to associate with increased risk of low birth weight (LBW). However, whether the two factors would interact to elevate the risk of LBW remains unknown.

11p viferrari 28-11-2022 7 2   Download

Continued part 1, part 2 of ebook "Elements of the nature and properties of soils (Third edition)" provide readers with content about: soil acidity, alkalinity, aridity, and salinity; organisms and ecology of the soil; soil organic matter; nutrient cycles and soil fertility; practical nutrient management; soil erosion and its control; soils and chemical pollution;...

346p hanlinhchi 11-11-2022 13 3   Download

One experiment was conducted with 3 treatments and 5 repetitions in a completely randomized design. The treatments including TM1: NPK fertilizers; TM2: manure of ducks fed with silaged banana stem (BM); TM3: manure fed with banana stem, molasses and wort (BM-W). The objective was to evaluate the yield of water spinach when applying duck manure fed with banana stem, molasses and wort in replacing the use of NPK fertilizers.

8p vikoenigsegg 26-09-2022 7 2   Download

The flood susceptible map was generated by merging the slope map and the stream network maps. The results indicate that about 42.59% of the study area were highly prone to flooding. The areas susceptible to flooding were mainly made up of agricultural lands with high usage of chemical fertilizers for farming, which may leach into nearby rivers, streams, lakes and groundwater during flood occurrence.

12p thebadguys 15-01-2022 19 0   Download

The values of potentially mineralizable N estimated using first order kinetics model related well to the observed cumulative MN at 16th week. No significant difference was observed between CF and SRF treatments for available P content in the 2nd week. Significantly higher P content was observed in CF compared to SRF treatment in the 4th week, whereas in the 8th week, some SRFs released significantly higher content than CF.

10p schindler 30-12-2021 23 0   Download

To the best of our knowledge, no study has investigated replacing chemical fertilizers with fish effluents in marjorana production in a combined aquaculture agriculture system. The main objective of this study was to investigate the effect of Nile tilapia (Oreochromis niloticus) fish effluent water on the growth parameters, herbage yield, and essential oil composition of sweet marjoram.

7p schindler 30-12-2021 14 0   Download

Soil type is a vital determinant of soil fertility because of its characteristic biological, chemical, and physical properties. However, the soil fertility of upland soil is probably changed by different agricultural management practices regardless of soil type. This study investigated the features of soil fertility (bacterial biomass, total carbon (TC), and total nitrogen (TN)) in upland fields in Japan. One thousand soil samples from different soil types were collected from upland fields located on 36 prefectures in Japan.

8p schindler 30-12-2021 9 0   Download

The objectives of this study were to study the existing highland agricultural land use patterns; to analyze the environmental sustainability of highland agricultural land use patterns; and to determine the optimal highland agricultural land use patterns. Environmental indicators of concern were soil fertility, water quality, and chemicals used in crop cultivation.

6p guernsey 28-12-2021 10 0   Download

Organic agricultural production has been taking place in many countries around the world with a strong shift from traditional agriculture to sustainable agriculture in order to create high-value agricultural products with food safety, environmental protection and climate change adaptation. Organic agricultural production is considered as the natural farming with strict control of irrigation water, unpolluted soil and no use of chemical fertilizers, pesticides, herbicides, growth stimulants and plant varieties, livestock and materials derived from genetically modified organisms.

7p vimichaeldell 04-12-2021 21 1   Download