Carbonate type saline-alkali land soil conditioner and application thereof to pennisetum sinese planting

Abstract

The invention discloses a carbonate type saline-alkali land soil conditioner which comprises the following components in parts by mass: 5-8 parts of rice hull powder, 6-9 parts of peat, 12-14 parts of humic acid-polyacrylic acid, 8-12 parts of fulvic acid, 4-8 parts of biochar, 11-14 parts of cellulose-acrylamide, 20-27 parts of desulfurized gypsum, 5-8 parts of dolomite, 6-9 parts of chitosan, 0.001-0.005 part of brassinolide, 0.3-0.9 part of halococcus morrhuae, 5-8 parts of buddleia powder, 6-8 parts of agropyron sibiricum, and 0.3-0.7 part of a water retaining agent. The invention further discloses application of the soil conditioner to pennisetum sinese planting. The soil conditioner has the benefits that after pennisetum sinese is planted for 12 months, the soil volume weight is reduced, soda in 100 g of soil is 0.08-0.13 milligram equivalent, the total porosity rate of soil is 58.4-62.5%, and the soil moisture permeability is increased by 4.0-4.5 times.

Description

technical field [0001] The invention provides a carbonate type soil improver for saline-alkali soil and its application in the planting of royal bamboo grass, belonging to the technical field of soil improvement. Background technique [0002] Saline-alkali land is a type of salt accumulation, which means that the salt contained in the soil affects the normal growth of crops. According to the incomplete statistics of UNESCO and FAO, the area of ​​saline-alkali land in the world is 954.38 million hectares, of which my country is the largest 99.13 million hectares, the formation of alkaline soil and alkalized soil in my country is mostly related to the accumulation of carbonate in the soil, so the degree of alkalization is generally high, and plants in severe saline-alkali soil areas can hardly survive. [0003] The existing soil improvers have the following deficiencies when improving carbonate-type saline-alkali land: (1) cannot effectively reduce the carbonate content and tot...

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Problems solved by technology

[0003] The existing soil improvers have the following deficiencies when improving carbonate-type saline-alkali land: (1) cannot effectively reduce the carbonate content and total salt content in the soil at the same time; (2) the effect of reducing soil pH is not good; ( 3) The moisture infiltration and air permeability of the soil have not been effectively improved; (4) The degree of reduction in the bulk density of the soil is low

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