By way of f-CaO chemical analysis and thermal analysis, the article studied the influence of K_2O on the mineral of C_2S or C_4A_3 which chiefly formed a cement of high silicon belite sulphur aluminate cement.

Effects of inorganic fertilizers on biological nitrogen fixation and seedling growth of some agroforestry trees in Bangladesh;

The pot experiments were conducted to study the effects of lake sediment and inorganic fertilizer combined application on soil chemical properties and heavy metal(Cd) of winter wheat seed.

In the present experiment,both organic and inorganic fertilizers were applied to study the effect of different ratio of organic and inorganic fertilizer on yield and nitrate content in Chinese cab-bage.

The effects of inorganic fertilizer on the living microbial numbers in microbial-organic-inorganic compound fertilizers were studied by indoor simulated experiment with plating count.

The mathematic models of optimization growing hot pepper F1 hybrid Yuejiao -3 in the autumn-winter were studied with the quadratic regression orthogonal combination design, in which the sowing date, space between plants, organic fertilizer and inorganic fertilizer input were employed as the adjusting factors.

The effects of different application schedule of organic and inorganic fertilizer on lint yield and practical characters of cotton bolls of Sumian 8 were studied.

Effect of organic manure and chemical fertilizer on soil nutrient;