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p> To confirm the strategy, a sequence of autogenous shrinkage and compressive power of concrete with and with out super absorbent polymer (SAP) were evaluated compared with the tactic proposed previously. Using humic acid extracted from Sinkiang Hami brown coal as raw materials,and acrylic acid and acrylamide as monomer,PSA-AM polymer was synthesized by the tactic of solution copolymerization.Based on PSA-AM,a new super absorbent polymer was synthesized by way of including humic acid and fly ash.The brand new polymer had effectively capacity of retaining and adsorbing water,and will promote plant growth,and enhance soil physi-chemical properties.Meantime,its price was decrease relatively.Thus,the brand new polymer had a good economic and use value. Pre-swelling the crystals is a graphic illustration of their water holding capability. The crystals are sewn right into a pouch within the cloth. As these zones are ever dealing with water crisis as a consequence of insufficient and unsure natural precipitation, the issue with water shortage or insufficiency could presumably aggravate supplementarily. The quantity of IC water is enormously vital to shrinkage and energy, because it may affect the water and cement ratio () change, which is one of the crucial parameters in concrete mix proportion. 20 cm respectively. https://ldony.top/9m9i5G of tremendous absorbent might speed up or delay the change of fundamental water uptake layer in different periods, but could not change the pattern; The super absorbent polymer might significantly(P 0.05) improve the proportion of advantageous root(diameter 0.5 mm), promoting root growth and enhancing the root water uptake performance; Treatments which super absorbent polymer had been buried in shallow depth may promote the root growth more significantly, SAP and SAP15 have been higher than SAP35; The super absorbent polymer effect on proportion of maize advantageous root(diameter 0.5 mm) was per the regulation of root primary water uptake layer change, which was obtained from stable isotopes evaluation. Drought stress was utilized at fourteen-go away-stage of sunflower and polymer was added at the identical stage to soil in depth of root improvement. Then again, polymer utility reduced the dangerous results of drought stress whereas software of 300 kg/ha polymer in lengthy irrigation intervals a reasonable seed yield obtained. In all traits, a big lower was noticed with enhance in stress degree. The seedling growth of treated with the compound-SAP was 12-forty seven p.c greater than that of the reference, and the biomass of the group treated with the compound was 1.3-5.6 times larger than that of the reference; the treated with compound SAP was in a position to vital improve water content and circulate of water of plant; the biomass of the group with the same level of fertilizer therapy was 3.88 instances higher than the common. The proportion of superior tobacco considerably increased, whereas the proportion of inferior tobacco considerably decreased, and the web output value of the flue-cured tobacco significantly increased by the treatment with application charge of 60 kg/hm2. The soil bulk density of 0-20 and ＞20-forty cm soil layers was considerably reduced by the treatment with software price of 60 kg/hm2, however the treatments with utility rate of forty five and 75 kg/hm2 had no important effect on soil bulk density. In sum, the suitable software rate of potassium polyacrylate tremendous absorbent ploymer is about 60 kg/hm2 in the tobacco area with yellow brown soil in Qinba mountain area. All application charges of potassium polyacrylate super absorbent polymer promoted the growth of flue-cured tobacco, increased flue-cured tobacco yield, conventional chemical composition and output worth. The rise of the amount of the super absorbent polymer within the concrete mix improves the interior curing properties of the concrete at the identical generate extra voids within the mass of the concrete which in flip reduces the energy of the concrete. Super-absorbent polymer (SAP) is ready to absorb water by multiple times greater than its personal weight. The best proline accumulation (4.001 mg/g dry weight) belonged to irrigation after 200 mm evaporation with 120 kg/ha of polymer, and the minimal leaf proline content material (0.748 mg/g dry weight) was observed at irrigation after 100 mm evaporation with 300 kg/ha of polymer. At the same time, it elevated the dry matter accumulation and nutrient uptake. All the same consept. The T3 for 200 g SAP per tree improved the average soil moisture by about 21.53% as in comparison with T1 in the entire fruit interval, and elevated average diurnal transpiration by about 20.62%. At the same time, the common weight and Vitamin C content material of each apricot fruit had been apparently greater than these of T1 and T2. Sapwood flow velocity (SFV) of a 15-yr-old apricot tree was constantly monitored by Thermal Dissipation Sapwood Flow Velocity Probe at Beiliu orchard in Changping. The authors researched soil water, transpiration, fruit yield and high quality after applying SAP to apricot trees and quantitatively analyzed water using characteristics, and the research provided a theoretical foundation for extremely environment friendly and reasonable water conservation. M. Javad Rousta. 2011. Effect of drought stress and animal manure with super absorbent polymer on yield and its components of Corn. Application of a lower dose of polymer (75 Kg/ha) moderated the damaging effects of drought stress, while larger doses of the polymer (225 and 300 kg/ha) prohibited the dangerous results of drought stress. Matricaria chamomilla, and the impact of tremendous absorbent polymers on reduction of drought stress, a factorial experiment was carried out primarily based on randomized complete block design with three replications in Faculty of Agriculture of Urmia University on 2008. Treatments included water deficit stress (irrigation after 50, 100, one hundred fifty and 200 mm evaporation from pan class A) and various quantities of super absorbent polymer (0, 60, 120, 180, 240 and 300 kg/ha).

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