High-calcium-brackish-water and fresh-water root-divided alternative irrigation method and application of high-calcium-brackish-water and fresh-water root-divided alternative irrigation method to planting of cedars in saline and alkaline land
A technology of alternating irrigation and brackish water, applied in the field of irrigation, can solve the problems of slow growth rate of plants, waste of water resources, and low medicinal value of plants, so as to improve the growth rate, improve the medicinal value and reduce the transpiration rate. Effect
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Embodiment 1
[0049] Example 1 A method of alternately root-split irrigation using high-calcium brackish water and fresh water
[0050] A method for alternate root irrigation using high-calcium brackish water and fresh water, comprising the following steps:
[0051] 1. Laying of salt barrier layer:
[0052] Lay the salt barrier layer in the planting area, the upper surface of the salt barrier layer is 80cm away from the ground surface;
[0053] The salt barrier layers are sequentially from bottom to top: coarse stone layer, fine penny grass layer, fine stone layer, and mixed soil layer;
[0054] (1) Coarse stone layer laying:
[0055] The coarse stone layer includes: zeolite, ceramsite, pebble;
[0056] The diameter of the zeolite is 1.5cm-2cm, the diameter of the ceramsite is 2.0-2.5cm, and the diameter of the pebble is 3.0cm-4.0cm;
[0057] Described zeolite, ceramsite, pebble are mixed according to the volume ratio of 1:2:4;
[0058] The rough stone layer is 20cm thick.
[0059] (2...
Embodiment 2
[0094] Embodiment 2 A kind of alternate root irrigation method using high-calcium brackish water and fresh water
[0095] A method for alternate root irrigation using high-calcium brackish water and fresh water, comprising the following steps:
[0096] 1. Laying of salt barrier layer:
[0097] Lay the salt barrier layer in the planting area, the upper surface of the salt barrier layer is 90cm away from the ground surface;
[0098] The salt barrier layers are sequentially from bottom to top: coarse stone layer, fine penny grass layer, fine stone layer, and mixed soil layer;
[0099] (1) Coarse stone layer laying:
[0100] The coarse stone layer includes: zeolite, ceramsite, pebble;
[0101] The diameter of the zeolite is 1.5cm-2cm, the diameter of the ceramsite is 2.0-2.5cm, and the diameter of the pebble is 3.0cm-4.0cm;
[0102] Described zeolite, ceramsite, pebble are mixed according to the volume ratio of 1:3:5;
[0103] The rough stone layer is 23cm thick.
[0104] (2...
Embodiment 3
[0139] Embodiment 3 A kind of alternate root irrigation method using high-calcium brackish water and fresh water
[0140] A method for alternate root irrigation using high-calcium brackish water and fresh water, comprising the following steps:
[0141] 1. Laying of salt barrier layer:
[0142] Lay a salt barrier layer in the planting area, the upper surface of the salt barrier layer is 100cm away from the ground surface;
[0143] The salt barrier layers are sequentially from bottom to top: coarse stone layer, fine penny grass layer, fine stone layer, and mixed soil layer;
[0144] (1) Coarse stone layer laying:
[0145] The coarse stone layer includes: zeolite, ceramsite, pebble;
[0146] The diameter of the zeolite is 1.5cm-2cm, the diameter of the ceramsite is 2.0-2.5cm, and the diameter of the pebble is 3.0cm-4.0cm;
[0147] Described zeolite, ceramsite, pebble are mixed according to the volume ratio of 1:3:6;
[0148] The rough stone layer is 26cm thick.
[0149] (2)...
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