Method of using salt tolerant zoysia japonica for reducing salt content of severe saline alkali soil
A technology for saline-alkali soil and severe saline-alkali land is applied in the field of reducing the salt content of severe saline-alkali soil by using salt-tolerant Zoysia japonica, which can solve the problems of inability to grow crops, poor soil structure, and high improvement costs, and achieves reduction of soil water evaporation, The effect of rapid formation and rapid growth
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Embodiment 1
[0026] 1) The construction season is July 2014, and the site is in Tianjin Dagang Oilfield;
[0027] 2) The soil is coastal heavily saline-alkali land with a salt content of 2.1%. Apply 13 cubic meters of cow dung per mu as the base fertilizer. Combined with plowing the land for 30 cm, mix the cow dung into the soil and rake it flat;
[0028] 3) Pave salt-tolerant Zoysia grass BD-61, the turf is 33-100 cm in strips, and the turf should be planted tightly, leaving no gaps as much as possible. After paving, use a shovel to pat down the soil and keep the soil moist until the root system is established;
[0029] 4) Irrigate with frozen water at the end of November 2014, water thoroughly before turning green in spring of 2014, and apply compound fertilizer NPK: 17-20-8, 20 kg / mu every month during the growing season;
[0030] 5) Cut the grass strictly according to the 1 / 3 principle, cut the grass about once every 7 days, and cut the grass at a height of 3cm;
[0031] 6) Effect eva...
Embodiment 2
[0038] The construction season is summer, and the location is Longju Town, Dongying City, Shandong Province.
[0039] 1) The soil is coastal sandy saline-alkali land with a salt content of 1.1%. Apply 13 cubic meters of cow dung per mu as the base fertilizer, combined with plowing the land for 30 cm, mix the cow dung into the soil, and rake it;
[0040] 2) Plant salt-tolerant Zoysia grass BD-61, about 15-20 grass stems per hole, plant according to the ratio of 1:5, keep the soil moist until the root system is established;
[0041] 3) Irrigate with frozen water at the end of November 2014, water thoroughly before turning green in the spring of 2014, and apply compound fertilizer NPK: 17-20-8, 20 kg / mu every month during the growing season;
[0042] 4) Cut the grass strictly according to the 1 / 3 principle, cut the grass once every 7 days, and cut the grass at a height of 3cm;
[0043] 5) Effect evaluation:
[0044] Such as diagram 2-1 , 2-2 ;
[0045] After 15 days of ber...
Embodiment 3
[0050] 1) The construction season is July 2016, and the location is in Hebei Province;
[0051] 2) The soil is coastal severe saline-alkali land with a salt content of 3.1%. Apply 13 cubic meters of cow dung per mu as the base fertilizer, combined with plowing the land for 30 cm, mix the cow dung into the soil, and rake it;
[0052] 3) Salt-tolerant Zoysias BD-61, the turf is 33-100 cm in strips, planted tightly, leaving no gaps as much as possible; after planting, pat down with a spade to keep the soil moist until the root system is established;
[0053] 4) Cut the grass strictly according to the 1 / 3 principle, cut the grass once every 7 days, and cut the grass at a height of 3cm;
[0054] 5) Effect evaluation:
[0055] Such as Figure 3-1 , 3-2 ;
[0056] Bermudagrass turf takes root in 3 days, and after 15 days, the survival rate of bermudagrass reaches over 95%;
[0057] The soil salinity is significantly reduced, the organic matter content is increased, and the stru...
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