Modifier for newly-cultivated cracked alkaline soil and improvement method
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A technology of improver and alkaline soil, which is applied in the field of Xinken cracked alkaline soil improver and improvement. It can solve the problems of little research and high organic matter content, and achieve good improvement effect, high yield and high seedling preservation rate.
Inactive Publication Date: 2015-08-12
NINGXIA UNIVERSITY
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Furfural slag is a kind of strongly acidic biomass with high organic matter content and certain effective components of nitrogen, phosphorus and potassium. It can be used as a soil improver. There are few domestic studies on furfural slag improving soil.
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Embodiment 1
[0034] A new reclamation cracked alkaline soil improvement agent, the raw materials are calculated according to the usage amount, including the following components:
[0035] Desulfurization gypsum 30m 3 / hm 2 , furfural slag 22.5m 3 / hm 2 , yellow sand 120m 3 / hm 2 , cow dung or sheep dung 60m 3 / hm 2 , the pH of the furfural slag is 1.5-3.6.
[0036] The improved method includes the following steps:
[0037] S1: Laser leveling: deep plowing of the field land, leveling the ground with a laser leveling instrument, the height difference does not exceed 2cm;
[0038] S2: Application of improver: Excavate a trough perpendicular to the drainage ditch in the field, the trough is 20cm wide, 80cm deep, and 800cm apart, then loosen the soil along the vertical direction of the trough, and the depth of deep loosening is 80cm; Desulfurized gypsum, cow dung or sheep dung and yellow sand are evenly spread on the soil surface;
[0039] S3: Rotary plowing and ridge making: the trac...
Embodiment 2
[0043] A new reclamation cracked alkaline soil improvement agent, the raw materials are calculated according to the usage amount, including the following components:
[0044] Desulfurization gypsum 22.5m 3 / hm 2 , furfural slag 15m 3 / hm 2 , yellow sand 90m 3 / hm 2 , cow dung or sheep dung 60m 3 / hm 2 , the pH of the furfural slag is 1.5-3.6.
[0045] The improvement method is the same as that of Example 1, and will not be repeated here.
Embodiment 3
[0047] A new reclamation cracked alkaline soil improvement agent, the raw materials are calculated according to the usage amount, including the following components:
[0048] Desulfurization gypsum 25m 3 / hm 2 , furfural slag 20m 3 / hm 2 , yellow sand 100m 3 / hm 2 , cow dung or sheep dung 60m 3 / hm 2 , the pH of the furfural slag is 1.5-3.6.
[0049] The improvement method is the same as that of Example 1, and will not be repeated here.
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Abstract
The invention provides a modifier for newly-cultivated cracked alkaline soil and an improvement method. The modifier comprises the following raw materials by mass: 22.5 to 30 parts of desulfurized gypsum, 15 to 22.5 parts of furfural residue, 90 to 120 parts of yellow sand and 60 parts of cow dung or sheep manure. The modifier provided by the invention is applicable to newly-cultivated cracked alkaline soil with a pH value of more than 9, total salt content of more than 3g/kg and an alkalization degree of greater than 25%; through combination of the modifier and the improvement method provided by the invention, the modified soil has a pH value decreased to less than 7.6, an alkalization degree decreased to less than 15.3% and total salt content decreased to less than 1.66 g/kg, the physical properties of the soil are improved, a good environment suitable for growth of crops is created, and oil sunflower has an emergence rate of more than 95% and output of more than 3870 kg/hm<2>. The modifier and the improvement method provided by the invention provide technical support for improvement and utilization of the newly-cultivated cracked alkaline soil and controlling of soil moisture and salt content of the newly-cultivated cracked alkaline soil, and also provide scientific bases for formulation of an irrigation system.
Description
【Technical field】 [0001] The invention relates to a new cracked alkaline soil improver, in particular to a new cracked alkaline soil improver and an improvement method. 【Background technique】 [0002] In 2014, led by the National Development and Reform Commission, ten ministries and commissions jointly promulgated the document "Guiding Opinions on Strengthening Saline-Alkali Land Management", emphasizing that saline-alkali land is an important strategic resource for reserve cultivated land in my country, and saline-alkali land management is a long-term, comprehensive and systematic work. Due to my country's limited cultivated land and large population, the development and utilization of saline-alkali soil, the largest land reserve resource, plays an important role in ensuring my country's land security, food security and ecological security, as well as achieving comprehensive, coordinated and sustainable development. Aiming at the worldwide technical problem of improving and...
Claims
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Application Information
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