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植物生长发育所需的营养,一是通过根系从土壤中吸收的无机元素,一是通过绿叶进行光合作用制造的有机物质。因此,土壤结构和物理特性的好坏,无机元素的含量丰缺,是关系到植物生长发育正常与否的一个重要条件。在同一地段相同的管理条件下,整地深度和起畦的高低不同,对菠萝的生长和产量有无影响?我们带着这个问题在
The nutrients needed by plant growth and development are inorganic elements that are absorbed from the soil through the root system and organic matter that is produced through photosynthesis through green leaves. Therefore, the soil structure and physical properties are good or bad, the abundance of inorganic elements, is an important condition related to plant growth and development of the normal or not. In the same area under the same management conditions, the depth of land preparation and prickly heat of different levels, the pineapple growth and yield have no effect? We bring this problem in