The modle with400kg and above for yield per mu, 10% and under for protein content in thegrain was as this: per mu application of N was 8.33 to 9.18kg, per mu applicationof P_2O_5 7.38 to 8.28kg, sowing norm per mu 285.2 to 307.0 thousand grains andthe date of first water 2.39 to 3.1 leaves.

Since the discovery of first water channel (AQP1) from red blood cell membrane by Agre et al in 1992, rapid and serial progresses have been made in characterization of AQP structure and function.

The paper quantitatively explains the basic law of energy conversion for water sail machine by the mathematical method, introduces the basic technical features of first water sail power station at home and abroad.

It was found that the energy of binding the O+ ion to the first water molecule is appreciably higher than those of binding to the subsequent water molecules.

The first water molecule adds with an energy of about 100 kJ/mole, while the other three molecules add with the same energy of 56 ± 2 kJ/mole.

Contrary to expectations, the Rb2SO4-(NH4)2-SO4-H2O appears to be the first water-salt system containing continuous solid solutions in which the mentioned rule is not obeyed.

Contrary to expectations, the (Rb2SO4-(NH4)2-SO4-H2O appears to be the first water-salt system containing continuous solid solutions in which the mentioned rule is not obeyed.

A series of organotin poly(ethylene glycols) were synthesized including the first water soluble organotin polymers.

In this experiment, We selected the four major controlled factors whichwere the application of N and P_2O_5 fertilizers, sowing norm and the dateof first water as independent variables, and the protein content, starch contentand perunit area yield for brewer's barly as aim function's four elementquadratic regression equations of the four factors with each aim functionwas built up respectiv ely through the study of the relationships betweenthem. On this basis, after the single and double frequency analysis,...

In this experiment, We selected the four major controlled factors whichwere the application of N and P_2O_5 fertilizers, sowing norm and the dateof first water as independent variables, and the protein content, starch contentand perunit area yield for brewer's barly as aim function's four elementquadratic regression equations of the four factors with each aim functionwas built up respectiv ely through the study of the relationships betweenthem. On this basis, after the single and double frequency analysis, reducing indimention for optimum value and analysis to eaeh major factor and so on,the extent and change tendency of the four major factors that affected theprotein and starch contentof brewer's barley was discussed. the modles of theoptimum agricultural measures having protein content in 8.96 + 1.34% andstarch content in 56.76 + /3.55% in the grain were obtained. The modle with400kg and above for yield per mu, 10% and under for protein content in thegrain was as this: per mu application of N was 8.33 to 9.18kg, per mu applicationof P_2O_5 7.38 to 8.28kg, sowing norm per mu 285.2 to 307.0 thousand grains andthe date of first water 2.39 to 3.1 leaves.

Since the first water quality mathematical model was presented in 1925, through nearlg seventy years study and develop, many different models have been prosented. The process of studying this models in abroad can be devided to four periods, calculation method has been developed from one-dimension to three-dimensions. Definite models have been thorougly studied and applied in home. Now the two developing directions of models are continuously using new technique to improue existing models and build up and...

Since the first water quality mathematical model was presented in 1925, through nearlg seventy years study and develop, many different models have been prosented. The process of studying this models in abroad can be devided to four periods, calculation method has been developed from one-dimension to three-dimensions. Definite models have been thorougly studied and applied in home. Now the two developing directions of models are continuously using new technique to improue existing models and build up and apply indefinite models.

After several years study。We found that the survival rate of plantution from di-rect seeding was very low,only 14/0% in JiLantai and 14.1%in Xin Jiang. Under the condi-tions of first water,the survival rate of plantation by tree planting were:first years value was43.1% and second years value was 48.7.But for container seedling,they were 84.4% and66.7% respectively in rain season(no irrigation)。During dry seasons,if desiccant had beenadded in container,the first years survival rate and second...

After several years study。We found that the survival rate of plantution from di-rect seeding was very low,only 14/0% in JiLantai and 14.1%in Xin Jiang. Under the condi-tions of first water,the survival rate of plantation by tree planting were:first years value was43.1% and second years value was 48.7.But for container seedling,they were 84.4% and66.7% respectively in rain season(no irrigation)。During dry seasons,if desiccant had beenadded in container,the first years survival rate and second years were 79.1%and 59.5% re-spectively,If nodesiccant they were 66.5% and 53.2% respectively.Using the grey systme decision theory which was under the conditions of multigoals andmultisituations to perform the grey decision for plemtation by container seedling,by directseeding and by tree seedling. Results showed tbat the solution of effect matrix was plantationby container seedling,which was guided by multigoals and multisituations.Multigoals: first years survival rate of seedling,second years survivai rate of plantation,height,stem diameter at ground level,crown area and investment cost.Multisituations: JiLantai.Xinjiang and Gansu. Considering every method of planting,the plantation by container seedling was an effec-tive technique for rejuvenation and regeneration of cakcayr forest.