Results conceing existence, uniqueness and local regularity of Inhomogeneous Schrodinger flow from TR^d into S2, are presented by using the difference method,wh
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We study logarithmic gradient estimate to smooth admissible solutions of the Hessian-type equations on Sn. The equations contain a Monge-Ampere equation arising
On the assumption that the total variation of the initial data is sufficiently small,we can use the stability results of Dafermos to get the L2 estimate of the
以华杂棉H318(Gossypium hirsutum L.)为材料,在盆栽和大田种植条件下,采用移栽方式,研究了钾肥用量(kg/ha) (A,0; B,112.5; C,225; D,337.5; E, 450),对棉花生长发育、农艺性状、生理生化、生物质积累、产量以及纤维品质的影响。结果表明,钾肥用量225kg/ha是最适宜的,其棉花生育进程加快,主要农艺性状优良,产量和纤维品质性状较好,生理
我县自1988年以来,在丘陵梯田进行夏甘薯盖草试验。3年平均亩产鲜薯1995.5公斤,比不盖草的对照增产237.4公斤,增产13.80％。1990年在10个丘陵乡镇进行示范推广5000亩,经30个点