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Super Absorbent Polymer Secrets

<p> THE EFFECT OF SUPER ABSORBENT POLYMER ON YIELD, ANTIOXIDANT ENZYMES (CATALASE AND SUPEROXIDE DISMUTASE) ACTIVITY AND CELL MEMBRANE STABILITY IN MUSTARD UNDER WATER DEFICIENCY STRESS CONDITION. RAHMANI, M., HABIBI, D., SHIRANIRAD, A., DANESHIAN, J., VALADABADI, S., MASHADI AKBAR BOUJAR, M., KHALATBARI, A., 2010. THE EFFECT OF SUPER ABSORBENT POLYMER ON YIELD, ANTIOXIDANT ENZYMES (CATALASE AND SUPEROXIDE DISMUTASE) ACTIVITY AND CELL MEMBRANE STABILITY IN MUSTARD UNDER WATER DEFICIENCY STRESS CONDITION. With laboratory test and field experiment, this paper studied the water conservation performance of four types of super absorbent polymer (SAP) in deionized water and loam soil, and the effects of the type and dosage of SAP on the soil water storage and maize yield. In order to study the effects of super absorbent polymer and plant growth promoting rhizobacteria (PGPR) on yield and yield components of maize (double cross 370), the experiment was done in Karaj region/ Iran in 2009. The experiment was conducted as a randomized complete block design with 4 replicates and in two separate experiments under drought stress and normal conditions. 2015. Contribution of integrated nutrient management practice for sustainable crop productivity, nutrient uptake and soil nutrient status in Maize based cropping systems. The water conservation performance of SAP in field was affected by the water uptake by crop.</p>

<p> Agriculture Hydrogel is a revolutionized super absorbent Polymer for conservation and optimum use of water for crops while dropping costs of irrigation and increasing crop yield even in adverse climatic surroundings. 101.3% and the relative standard deviation is 2.96%.The method can be used for controlling the quality of residual acrylic acid in super absorbent polymer. • Low soluble content and residual monomer: These polymers have maximum active substance content and very minimum soluble content which makes them very ideal for use in agro industries. My Web Page as the low cost plant cellulose (taken from the fallen leaves, crop caudex and haulm) and the starches are suggested to prepare the SAP. Other materials are also used to make a superabsorbent polymer, such as polyacrylamide copolymer, ethylene maleic anhydride copolymer, cross-linked carboxymethylcellulose, polyvinyl alcohol copolymers, cross-linked polyethylene oxide, and starch grafted copolymer of polyacrylonitrile to name a few. In this paper,the super absorbent polymer(SAP)was fast polymerized at high temperature with using starch as the skeleton,acrylic acid(AA)as monomers,potassium persulfate(K 2S 2O 8)n as the initiator.The best formula was obtained by orthogonal experiments,and the products exhibited values of 1550 g H 2O/g sample in deionized water and 95 g H 2O/g sample in deionized oater and 95 g H 2O/g sample in 0 9 wt% NaCl solution.</p>

<p> The SAP composed of polyacrylate and with smaller particle size presented a higher water conservation capability in deionized water and loam soil, with the evaporation rate reduced to 0.76 and 0.75 times of CK. The results showed that the water conservation performance of SAP was highly related to its type and particle size. Excess or scarcity would restrain the water conservation of SAP. The effects of discharge power, plasma treatment time, initiator dosage, acrylic acid dosage, vacuum degree and neutralization ratio on water absorbency and grafting reaction time of the products were studied by single factor experiments. 40%, in which the distilled water absorbency of the product reached its maximum of 509 g/g and the grafting reaction time approached its minimum of 2min. This process has the advantages of simple operation, easy control, high grafting efficiency, short production cycle, low cost and so on, which meet the industrial production requirements of super absorbent polymer. The greatest proline accumulation (4.001 mg/g dry weight) belonged to irrigation after 200 mm evaporation with 120 kg/ha of polymer, and the minimum leaf proline content (0.748 mg/g dry weight) was observed at irrigation after 100 mm evaporation with 300 kg/ha of polymer. Results of Analysis of Variance (ANOVA) showed the significant effect of irrigation on dried flower, the numbers of capitol per plant, capitol diameter and receptacle height, and non significant effect on single capitol weight and leaf soluble carbohydrates.</p>

<p> But, the maximum and minimum numbers of capitol per plant (199.22 and 91.22) were obtained from 100 and 150 mm evaporation from pan, respectively. In this research, chlorophyll a and b had the reducing trend from irrigation after 100 mm evaporation from pan. Global survey shows the 21st century has witnessed a slow and steady decline of irrigation water potential conjugated with the rising population &amp; improved economic activities among countries specially located in arid and semi-arid parts of the world. The country accounts for quite ten percent of the world’s kid population. SAP demand will be mainly driven by the demand from disposable baby diapers from emerging nations, like China and India, as they are expected to witness a steady growth rate of about 15-20 percent in the future. GONG Xin-ling1,2, GAO Jun-xia3, YIN Guang-hua1, ZHANG Zi-kun1,2, LIU Zuo-xin1 (1Key Laboratory of Liaoning Water-Saving Agriculture, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; 2Graduate University of Chinese Academy of Sciences, Beijing 100039, China; 3Institute of Resource and Environmental Technology, Zhengzhou Institute of Aeronautical Industry Management, Zhengzhou 450015, China). Yongliang 4 in the Hetao irrigation Area, Nei Menggu, China.</p>

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