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首页> 外文会议>World Congress of Soil Science >Gross soil modification of duplex soils through delving and spading
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Gross soil modification of duplex soils through delving and spading

机译：通过漂白和铲除重复性土壤的土壤修饰

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摘要

Duplex soils in South Australia present a number of constraints that have been observed to reduce root growth and plant yield. This paper investigates two soil modification processes that have been developed to mix soil horizons, thus reducing the impact of some subsoil constraints. One technique is called "clay delving", and involves using a specially designed ripping tine that peels clay from the B horizon, through the A horizons to the surface. The other technique is called "Spading" and involvesthe use of a "spader" machine. This machine uses a series of off-set, rotary "spades" to mix the surface horizons to a depth of approximately 30-40cm. Both soil mixing procedures have been used to bring up and mix in clay from the B horizon, as well as to mix in surface materials such as hay, green manure crops, surface applied clay, lime and gypsum. Trial data gathered from measuring changes in the soil, as well as measured changes in plant yield are presented from 2 field trials. Significant improvements in subsurface and subsoil root growth have been observed, and plant dry matter growth has been recorded to improve considerably.
机译：南澳大利亚的双工土壤存在许多约束，已被观察到降低根系生长和植物产量。本文调查了已经开发出混合土壤视野的两种土壤改造过程，从而降低了一些底土的影响。一种技术被称为“粘土漂白”，并涉及使用专门设计的撕裂叉，从B个地平线剥离粘土，通过地面到表面。另一种技术被称为“散向”，并Vestorve使用“散丝器”机器。该机器采用一系列旋转的旋转性“黑桃”将表面视野混合在约30-40厘米的深度。两种土壤混合程序都已用于从B地平线上粘土粘土，以及在表面材料中混合，如干草，绿色粪便，表面施加的粘土，石灰和石膏。从2场实地试验中提出了从衡量土壤中测量变化的试验数据以及植物产量的测量变化。已经观察到地下和底层生长的显着改善，并且已经记录了植物干物质生长以显而易见。

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