Kingenta Ecological Engineering Group Co.

Linyi, China

Kingenta Ecological Engineering Group Co.

Linyi, China
Time filter
Source Type

Cao Y.C.,Northwest Agriculture and Forestry University | Cao Y.C.,Kingenta Ecological Engineering Group Co. | Yang R.,Northwest Agriculture and Forestry University | Liu S.,Northwest Agriculture and Forestry University | And 3 more authors.
Shengtai Xuebao/ Acta Ecologica Sinica | Year: 2017

This study focused primarily on the biodiversity of microbial communities in soil between the rhizosphere and non-rhizosphere in summer and autumn among four types of common trees-the Tooth Oak (Quercus aliena var. acutidentata), Chinese pine (Pinus tabuliformis), armand pine (Pinus armandii) and spruce (Picea asperata)-on the Qinling Mountain, China, using the micro BIOLOG method. We found that:(1) The Average Well Color Development (AWCD) of the soil in the rhizosphere was significantly different from that in the non-rhizosphere in most of the seasons, with AWCD in the non-rhizosphere being higher than that in the rhizosphere, except for the soil where spruce was grown in autumn. (2) Biodiversity of microbial communities differed remarkably between rhizosphere and non-rhizosphere in the soil where the four different types of trees were grown in either summer or autumn. For soil where tooth oak was grown, the biodiversity of microbes in the rhizosphere was lower than that of the non-rhizosphere in both summer and autumn, and both these values were in lower in summer than in autumn. While the biodiversity of microbes in soil among the other three coniferous trees showed similar trends to that of tooth oak in summer, they exhibited the reverse of this trend in autumn. Furthermore, the biodiversity of these soils in autumn was lower than that in summer in the non-rhizosphere but higher in the rhizosphere. (3) The results of principal component analysis indicated that the biodiversity of microbial communities in the soil for these four types of trees was significantly different, and the principal component scores for biodiversity among the four studied species in either the rhizosphere or non-rhizosphere in different seasons also varied substantially. The highest score among all studied species was found in the non-rhizosphere of the soil where tooth oak grew, followed by that of armand pine, and spruce, with that of Chinese pine being the least. The principal component score for the soil in the rhizosphere varied with season-in summer, the score was relatively high for Chinese pine and armand pine and lower for spruce. In autumn, the score was relatively high for Chinese pine and spruce and lower for tooth oak. The correlation between the comprehensive score and biodiversity index in all cases was positive or extremely positive. (4) Redundancy analysis showed that the combined effects of soil properties have a significant impact on the biodiversity of microbial communities in the soil. © 2017, Ecological Society of China. All rights reserved.

Yang X.,Shandong Agricultural University | Li C.,Shandong Agricultural University | Zhang Q.,Kingenta Ecological Engineering Group Co. | Liu Z.,Shandong Agricultural University | And 3 more authors.
Field Crops Research | Year: 2017

Potassium (K) is one of the most important nutrients influencing plants, including cotton growth and metabolism. Because of toxicity from chloride ions, potassium sulfate (K2SO4) usually is used instead as a potassium fertilizer, especially for cotton, although it is lower in K2O content and dearer than potassium chloride (KCl). The objective of this study was to investigate the effects of polymer-coated potassium chloride (PCPC) fertilization on cotton yields, yield components, fiber qualities, potassium use efficiencies and leaf senescence under saline conditions. A 2-yr field experiment was conducted in the Yellow River Delta of China with a high-yielding cotton cultivar (‘Guoxin 99-1’). The experiment had the following six treatments with varying potassium fertilization: 70% PCPC mixed with 30% K2SO4 applied once before planting; PCPC applied once before planting; K2SO4 (KCl) applied twice with one application (40%) before planting and second application (60%) during first bloom stage; K2SO4 (KCl) applied once before planting; and fertilization none potassium as the control. The release rate of PCPC appeared to be slow before the squaring stage, but accelerated between the first bloom and boll-setting stages, and then decreased during the late stage including harvest. The number of cotton bolls was 8.99–19.71% higher and seed yields 4.39–28.10% higher, in 70% PCPC mixed with 30% K2SO4 treatment than in the other potassium fertilizer treatments. Also, the potassium recovery efficiency and net profits were increased by 3.38–40.90% and 5.77–137.26%, respectively, in the 70% PCPC mixed with 30% K2SO4 compared with the other potassium fertilizer treatments. Available soil potassium contents, fiber qualities and leaf photosynthetic indices were all significantly improved by using PCPC instead of the more standard potassium fertilizers. Hence, combining PCPC with K2SO4 at a 7:3 potassium ratio can delay leaf senescence, increase yields and fiber qualities, and improve potassium use efficiencies and economic benefits in cotton. © 2017

Mi W.,Yangzhou University | Zheng S.,Yangzhou University | Yang X.,Shangrao Normal University | Wu L.,Zhejiang University | And 3 more authors.
European Journal of Agronomy | Year: 2017

Controlled release urea (CRU) and urea with nitrification inhibitor could improve yields and nitrogen use efficiency (NUE) in a number of production systems. However, their effectiveness will be strongly influenced by environmental conditions. The objective of this research was to evaluate the effects of CRU and urea with nitrification inhibitors on grain yield and nitrogen use efficiency under different rice cropping systems. A five-year experiment on double rice cropping systems and a two-year experiment on single rice cropping systems were conducted using four treatments: not N fertilized (CK), prilled urea with split applications (PU), single basal application of polymer coating of sulfur-coated urea (PSCU) and prilled urea with the nitrification inhibitor 2-chloro, 6-(trichloromethyl) pyridine (NPU). The fertilizers were applied at the rate of 180 kg N ha−1 under a subtropical monsoon climate in China. The results suggest that NPU significantly increased the five-year average grain yield and NUE when compared with the PU treatment by 9.7% and 10.3% for early rice, and 9.6% and 8.8% for late rice, respectively. However, PU treatment produced a similar two-year average rice grain yield and 3.1% higher NUE when compared with the NPU treatments for single rice. PSCU treatment significantly increased average grain yield by 5% and 3.7% compared to the PU treatment of late rice and single rice, respectively. In addition, PSCU treatment resulted in the highest total N uptake and NUE during 2012–2015 for late rice and 2014–2015 for single rice, indicating synchronized N release in accordance with the N requirement of rice. However, the use of PSCU was not effective in improving grain yield or NUE of early rice owing to the delayed release of N during the tillering-heading stage. Overall, our results suggest that urea with nitrification inhibitor is preferable to urea for double rice cropping systems, and that PSCU is more suitable for single rice. © 2017 Elsevier B.V.

Ma Q.,Zhejiang University | Ma J.,Shandong Agricultural University | Sun Y.,Zhejiang University | Chen J.,State Key Laboratory of Nutrition Resources Integrated Utilization | And 2 more authors.
Acta Physiologiae Plantarum | Year: 2017

Sucrose is crucial for plant growth, but research about the effect of sucrose on the uptake of different nitrogen (N) and the metabolism of glycine is lacking. The uptake of glycine by pakchoi, when it was in a mixture of glycine, nitrate, and ammonium or acted as the single N source under different sucrose levels were detected in a sterilized environment. The optimal sucrose level for pakchoi growth varied with N supply; it was 6 μM in the single N source of glycine, while it was 15 μM in the mixture. The N contribution of glycine increased under the optimal sucrose, while the N contribution of ammonium decreased. The effect of exogenously supplied sucrose on the uptake and metabolism of glycine is dependent on the N supply. With the single N source, the metabolism of glycine to serine in roots rather than uptake was the limiting step under a high sucrose level (300 μM). In the mixed nitrogen, active uptake and the metabolism of glycine to serine are the limiting steps under high sucrose level. Externally supplied sucrose affects the absorption and metabolism of glycine by pakchoi greatly, and this effect varied with nitrogen supply. © 2017, Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków.

According to a recent market research report published by Transparency Market Research, the global controlled release fertilizers market is anticipated to expand at a CAGR of 5.6% during the period between 2016 and 2024. The report, titled “Controlled Release Fertilizers Market - Global Industry Analysis, Size, Share, Growth, Trends and Forecast 2016 - 2024,” projects the global controlled release fertilizers market to be worth US$3.92 bn by 2024. The overall market stood at a valuation of US$2.41 bn in 2015. Controlled release fertilizers are a type of enhanced efficiency fertilizers. These granulated fertilizers release nutrients gradually into the soil. Controlled release fertilizers are usually encapsulated or coated with inorganic or organic materials such as polyacrylonitrile (PAN), polysulfone (PSF), and cellulose acetate (CA). These materials regulate the pattern, rate, and duration of plant nutrient release from the fertilizers. Usually, controlled release fertilizers are used in horticulture and agriculture applications. The report states that the rapid growth in population worldwide has led to a gradual shift towards sustainable agriculture to ensure food security. As a result, the demand for fertilizers such as controlled release fertilizers has surged. However, the lack of awareness among farmers and the high cost of controlled release fertilizers compared to conventional chemical fertilizers are expected to hamper the growth of the global controlled release fertilizers market during the forecast period. The overall market has a huge potential to grow with prospective applications of controlled release fertilizers across lawns and gardens. On the basis of product type, the report has segmented the global controlled release fertilizers market into polymer coated urea, polymer sulfur coated urea/sulfur coated urea, polymer coated NPK fertilizer, and others including coated micronutrients. During the forecast period, polymer sulfur coated urea/sulfur coated urea is anticipated to dominate the overall market. This product segment held over 45% of the market in 2015. The report studies the global controlled release fertilizers market across five key regions: Latin America, Asia Pacific, the Middle East and Africa, North America, and Europe. In 2015, Asia Pacific emerged as the largest market for controlled release fertilizers, in terms of volume, closely followed by North America and Europe. The rapid growth of the Asia Pacific controlled release fertilizers market can be attributed to the growing demand from the horticultural and agricultural fields. During the forecast horizon, the market is anticipated to witness modest growth across Europe and North America. Describing the competitive landscape, the report profiles some of the key players in the global controlled release fertilizers market such as Greenfeed Agro Sdn. Bhd., ATS Group, The Scotts Miracle-Gro Company, Compo GMBH & Co. KG, HIF TECH SDN. BHD, Agrium Inc, Shikefeng Chemical Industry, Ekompany Agro B.V., AgroBridge (Malaysia), Agrium Inc, Haifa Chemicals ltd, ICL Specialty Fertilizers, Central Glass Co Ltd, Kingenta Ecological Engineering Group Co. Ltd., and The Chisso Corporation. Profiles of the market players include parameters such as financial overview, company overview, business strategies, and recent developments. Global controlled release fertilizers market has been segmented as: Transparency Market Research (TMR) is a global market intelligence company providing business information reports and services. The company’s exclusive blend of quantitative forecasting and trend analysis provides forward-looking insight for thousands of decision makers. TMR’s experienced team of analysts, researchers, and consultants use proprietary data sources and various tools and techniques to gather and analyze information. TMR’s data repository is continuously updated and revised by a team of research experts so that it always reflects the latest trends and information. With extensive research and analysis capabilities, Transparency Market Research employs rigorous primary and secondary research techniques to develop distinctive data sets and research material for business reports.

Gao X.,Shandong Agricultural University | Li C.,Shandong Agricultural University | Zhang M.,Shandong Agricultural University | Zhang M.,National Center for Quality Supervision and Testing of Fertilizers Shandong | And 3 more authors.
Field Crops Research | Year: 2015

Numerous studies on the traits of controlled release urea in agronomic production and the environmental protection were conducted in various crops system. However, understanding the effect of controlled release urea on potato production and nitrogen use efficiency was currently limited. In the present study, the effect of newly developed controlled release urea (CRU) including polymer coated urea (PCU) and polymer coating of sulfur-coated urea (PSCU) on the N use efficiency, tuber yield and quality of potato (Solanum tuberosum L.) that was grown on silt loamy soil were investigated in a field experiment over 2 yr at different sites. The application rate of polymer-coated urea (PCU) and urea was 150kgNha-1, and polymer sulfur-coated urea (PSCU) was applied at 150kgNha-1 and 225kgNha-1. The N release rates from CRU synchronized the N requirement of potatoes at different stages. The CRU treatments significantly increased total tuber yields by 8.77-19.88% in 2012 and 14.36-26.46% in 2013 in comparison with the urea treatment during the same year. The marketable tuber yield percentage was pronouncedly promoted by the application of PCU and PSCU in both years. N fertilization significantly enhanced the vitamin C, soluble protein and starch content. The significant difference of vitamin C concentration in tuber was only observed in 2013 between PCU and PSCU treatments. The application of PCU and PSCU markedly improved the N agronomic efficiency and apparent N use efficiency, but obviously decreased the N physiological efficiency relative to urea treatment in 2012 and 2013. Furthermore, enhancing dose of PSCU did augment total tuber yield and did not increase the marketable yield percentage, but decreased the apparent N use efficiency compared with PSCU treatment. Consequently, moderate amounts (150kgNha-1) of PSCU and PCU are recommended to replace urea for gaining greater yields of potato and nutrient use efficiency. © 2015 Elsevier B.V.

Chen H.,Kingenta Ecological Engineering Group Co. | Hu Z.,Kingenta Ecological Engineering Group Co. | Li X.,Kingenta Ecological Engineering Group Co. | Zhang F.,Kingenta Ecological Engineering Group Co. | And 2 more authors.
Archives of Agronomy and Soil Science | Year: 2016

A greenhouse pot experiment was conducted with peanuts (Arachis hypogaea L., Fabceae) to evaluate iron compound fertilizers for improving within-plant iron content and correcting chlorosis caused by iron deficiency. Peanuts were planted in containers with calcareous soil fertilized with three different granular iron nitrogen, phosphorus and potassium (NPK) fertilizers (ferrous sulphate (FeSO4)–NPK, Fe–ethylendiamine di (o-hydroxyphenylacetic) (EDDHA)–NPK and Fe–citrate–NPK). Iron nutrition, plant biomass, seed yield and quality of peanuts were significantly affected by the application of Fe–citrate–NPK and Fe–EDDHA–NPK to the soil. Iron concentrations in tissues were significantly greater for plants grown with Fe–citrate–NPK and Fe–EDDHA–NPK. The active iron concentration in the youngest leaves of peanuts was linearly related to the leaf chlorophyll (via soil and plant analyzer development measurements) recorded 50 and 80 days after planting. However, no significant differences between Fe–citrate–NPK and Fe–EDDHA–NPK were observed. Despite the large amount of total iron bound and dry matter, FeSO4–NPK was less effective than Fe–citrate–NPK and Fe–EDDHA–NPK to improve iron uptake. The results showed that application of Fe–citrate–NPK was as effective as application of Fe–EDDHA–NPK in remediating leaf iron chlorosis in peanut pot-grown in calcareous soil. The study suggested that Fe–citrate–NPK should be considered as a potential tool for correcting peanut iron deficiency in calcareous soil. © 2016 Informa UK Limited, trading as Taylor & Francis Group

Kingenta Ecological Engineering Group Co. | Date: 2015-12-03

Fertilizers; humus; fused phosphate fertilizers; calcium superphosphate fertilizer; compost.

Kingenta Ecological Engineering Group Co. | Date: 2016-01-07

Fertilizers for agricultural use; fertilizers; compost; humus; fused phosphate fertilizers; calcium superphosphate fertilizer; chemical fertilizers.

Kingenta Ecological Engineering Group Co. | Date: 2016-01-07

Fertilizers for agricultural use; fertilizers; humus; calcium superphosphate fertilizer; chemically converted compound fertilizer; chemical fertilizers; fused phosphate fertilizers.

Loading Kingenta Ecological Engineering Group Co. collaborators
Loading Kingenta Ecological Engineering Group Co. collaborators