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    • 3. 发明授权
    • Soil bed preparation, soil stabilizing, soil conditioning, and soil improving process
    • 土壤肥料制备,土壤稳定化,土壤条件改良和土壤改良工艺
    • US3705467A
    • 1972-12-12
    • US3705467D
    • 1971-05-27
    • JAMES T MCKNIGHT
    • MCKNIGHT JAMES T
    • A01N7/02
    • Y10S47/10Y10S106/90
    • A method of seed bed preparation, and soil improvement, conditioning, and stabilization comprising coating soil particles with a reactive high molecular weight cationic polymer or latex so as to form coated, positively charged soil particles and reacting coated, charged soil particles with an anionic alkalitreated lignin binder to provide a film or a network on the soil of sufficient wet strength to provide the soil with resistance to rainfall and water runoff. In addition to effectively stabilizing the soil, the soil treatment method accelerates the rate of seed germination and decreases the loss of valuable fertilizer material and seed.
    • 一种种子床制备方法,土壤改良,调理和稳定化,包括用反应性高分子量阳离子聚合物或胶乳涂覆土壤颗粒,以形成涂覆的带正电荷的土壤颗粒,并将涂覆的带电土壤颗粒与阴离子碱 在土壤上提供足够的湿强度的薄膜或网络,以使土壤具有抵抗降雨和径流的能力。 除了有效稳定土壤,土壤处理方法加速种子发芽率,减少有价值的肥料和种子的损失。
    • 7. 发明授权
    • Method and apparatus for conserving soil water
    • 保护土壤水分的方法和装置
    • US4027428A
    • 1977-06-07
    • US592246
    • 1975-07-01
    • Daniel I. Hillel
    • Daniel I. Hillel
    • C09K17/52A01N7/02
    • C09K17/52Y10S47/10
    • Natural soil is formed into clods ranging in size from a minimum dimension of about 5 mm to a maximum dimension of about 10 cm, and a hydrophobic agent is applied to the surface of the clods to increase the contact angle of water on the exposed grain surfaces of the clods to an angle greater than 90.degree., which makes the clods water repellent. The clods thus treated are employed to form the top layer of soil. The treated clods conserve soil water by allowing maximal intake of water and by constituting a barrier which reduces water evaporation. Such soil water conservation together with other advantages enable farming on land in regions which could never successfully be farmed before.An apparatus for forming and treating the clods has a lifting device for lifting the top layer of soil of a field to a screening device for breaking up the soil to have a maximum dimension of about 10 cm and to drop the broken up soil back to the field. A chamber having an open bottom surrounds the screening device, and nozzles direct a spray of liquid hydrophobic agent into the chamber to coat the clods. Alternatively, a blower may direct a powdered hydrophobic agent into the chamber. The screening device may be an apertured continuous belt, continuously moving and vibrating between a pair of horizontal axes, the soil being directed by the lifting device to the upper course of the belt.
    • 天然土壤形成尺寸从大约5mm的最小尺寸到约10cm的最大尺寸的粘土,并且将疏水剂施加到地块的表面以增加暴露的颗粒表面上的水的接触角 的土块角度大于90度,这使得地块防水。 这样处理的块体被用来形成顶层的土壤。 处理过的土块通过允许最大摄入水并通过构成减少水蒸发的屏障来保存土壤水分。 这种土壤水分保护与其他优点相结合,可以在以前从未成功耕种的地区的土地上进行种植。