求英语达人翻一下，不要机器翻译的

来源：百度知道 编辑：UC知道 时间：2024/05/12 10:37:10
不同地膜不同覆盖模式下玉米地土壤全磷与速磷的动态
摘要：本文研究了不同地膜不同覆盖方式对玉米生长四个时期土壤全磷与速磷含量的影响。采用普通地膜、渗水地膜和微孔地膜三种，分别为窄幅（80 cm）和宽幅130 cm）两种。覆盖方式分为平铺和起垄覆盖两种。分别在大田玉米出苗期、拔节期、抽穗期、成熟期采集土样。整理好土样后用速磷用0.5mol•L-1NaHCO3 法全磷用HClO4+ H2SO4消煮钼蓝比色法。结果研究表明：在玉米生长的四个时期成熟期全磷含量最低，拔节期速磷含量最低；同一种地膜采用不同的覆盖方式对土壤全磷和速磷含量有不同的影响；不同地膜同一覆盖方式对全磷和速磷含量影响不大。
关键词：不同地膜覆盖；玉米不同发育期；全磷的动态；速磷的动态。

Plastic film covering different modes of different corn soil total phosphorus and phosphorus-speed dynamic
Abstract: This paper studies the different coverage in different film growth on corn during the four-speed soil phosphorus and total phosphorus content. Ordinary plastic film, water film and the microporous film three, respectively, within a narrow range (80 cm) wide and 130 cm) in two. Coverage means the coverage is divided into two types of tile and the ridge. Daejeon corn in the seedling stage, jointing stage, heading stage, the mature collecting soil samples. After finishing with a good soil phosphorus speed with 0.5mol • L-1NaHCO3 law P with HClO4 + H2SO4 digestion molybdenum blue colorimetry. Results show that: in the period of maize growth stage of the four lowest total phosphorus content, phosphorus content jointing stage the lowest speed; with a plastic film covering the use of different methods on soil total phosphorus content of phosphorus and speed have