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plant growth regulator 3

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abatement 1

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Progress in the Study of Triacontanol (TA) and the Prospect of Its Application in Agriculture

Liu Desheng,Zhang Qun,Lu Donghe

Strategic Study of CAE 2001, Volume 3, Issue 2, Pages 91-94

Abstract:

Triacontanol (TA), a long chain fatty alcohol composed of 30 carbon atoms, generally exists in animal

Keywords： triacontanol (TA) agriculture plant growth regulator plant growth promoter

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Effect of Plant Growth Regulator Triacontanol (TA) on the Yield of Rice

Liu Desheng,Lu Xiumin,He Mingzhong,Xiao Huashan,Fan Xiuzhen

Strategic Study of CAE 2002, Volume 4, Issue 11, Pages 82-88

Abstract:

Triacontanol (TA) emulsive powder is a kind of widespread plant growth regulator.

Keywords： Triacontanol rice plant growth regulator

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The Effect of Plant Growth Regulator TA Emulsive Powder on the Yield and Quality of Kelp

Liu Desheng,Zhang Qun

Strategic Study of CAE 2000, Volume 2, Issue 2, Pages 68-73

Abstract:

At present, the breeding area of kelp in China is about 15000 hectares, and annual yield of dry product is 270 000 tonnes accounting for 50% of the total yield of seaweed in the world. TA emulsive powder can remarkably increase the yield and improve the quality of kelp. After the kelp seedling soaked in 2 mg/L TA solution for 2 hours and then put into breeding, the growth of rhizoid can be promoted and the seedling preservation rate can be raised, the content of chlorophyll and fucoxanthin increased, photosynthesis rate raised, accumulation of dry substance increased, activity of PEP carboxylase raised, metabolism of carbon promoted, activity of nitric-reductase raised, metabolism of nitrogen promoted, absorption of nitrogen, phosporous, potassium increased, growth and development promoted, contents of nucleic acid and protein raised, physiological adjusmtent strengthened, anti-disease property strengthened, rate of incidence of disease reduced. The yield of dry substance increased by 6.5 t per hectar in average compated with the treatment on the blank, that is increased by 35% . At the sametime, 24.24 kg iodine, 1.665t brown alg gum, and 1.278 t mannitol in kelp are increased per hectar. TA emulsive powder is a pioneer product at home and abroad. It has the advantages of non-toxic, high efficiency, low cost, no deterioration and convenience in storage and transport, etc. It has been popularized in 15 000 hectares in the whole country and the economic benefit is more than 300 million yuan.

Keywords： triacontanol kelp plant growth regulator

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Progress in the Study of Triacontanol (TA) and the Prospect of Its Application in Agriculture

Wen Ruimei,Du Guodong

Strategic Study of CAE 2001, Volume 3, Issue 2, Pages 71-78

Abstract:

The purpose of this article is to examine the methods and equipments for abating waste gases and water produced during the manufacture of semiconductor materials and devices. Three methods and equipments are presented in this article to control three different groups of electronic wastes. The first group includes arsine and phosphine emitted during the manufacture in semiconductor materials. The abatement procedure for this group of pollutants consists in adding iodates, cupric and manganese salts to a multiple shower tower (MST) structure. The second group includes pollutants containing arsenic, phosphorus, HF, HCl, NO₂ and SO₃ emitted during the manufacture of semiconductor materials and devices. The abatement procedure involves mixing oxidants and alkali liquor in an oval column with a separator in the middle. The third group consists of the ions of As, P and heavy metals contained in the waste water. The abatement procedure includes adding CaCO₃ and ferric salts into the waste water in a flocculation-sedimentation compact device. Test results showed that all waste gases and water after the abatement presented in this article passed the effluent standards set by the National Environmental Protection Bureau. ^[1]

Keywords： waste gases waste water abatement pollutant semiconductor