Restoring and modifying agent capable of treating sea beaches and saline-alkaline land and improving soil fertility of saline-alkaline land

Abstract

The invention provides a restoring and modifying agent capable of treating sea beaches and saline-alkaline land and improving the soil fertility of saline-alkaline land. The restoring and modifying agent is a granular material with water content of 25 to 30% and is composed of 25-35% of pretreated organic waste, 30-50% of an activated humic acid material, 15-25% of a rock mineral granular material, 2-8% of edible baking soda powder and 2-8% of starchy material. The organic waste comprises organic waste produced in daily life of human beings, discarded leftovers in the catering industry, the straws of various crops in agricultural production, the stems and leaves of various wild vines, the excretion of human beings, livestock and poultry, and leftovers produced in slaughtering of livestock,poultry and fish by human beings; activated humic acid organic matters comprise coal gangue, peat, brown coal and humic acid; the rock mineral granular material is composed of natural rock powder with particle sizes of 0.02-0.005 mm and mainly comprises zeolite, limestone, quartzite, micarex, gypsum, weathered coal, calcium carbonate, etc.; edible baking soda is powdery; and starch is non-ediblestarch or edible starch. The restoring and modifying agent can be mixed with traditional farmyard manure according to a certain ratio before use. 7-8 tons of the restoring and modifying agent is usedper mu.

Description

technical field [0001] The invention relates to a repairing and improving agent for treating beach saline-alkali land and fertilizing the barren soil of the saline-alkali land, which belongs to the agricultural technology category, and in particular refers to the technology of repairing and improving the barren soil of beach saline-alkali land. Background technique [0002] my country has a coastline of more than 18,000 kilometers. Along the way, there are large areas of reclamation and siltation of saline-alkaline barren soil. So far, due to excessive salinity and poor nutrients, a large area of ​​soil has been salinized or salinized, and barren land cannot be planted there. Crops, not being used effectively, have been in a state of abandonment. This kind of soil covers an area of ​​about 600 million mu, of which 210 million mu is saline-alkali land. If effective improvement techniques and methods can be used to turn it into good farmland, this will be of great help in maint...

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Problems solved by technology

[0008] In order to achieve the above purpose, many inventors have proposed some measures to improve soil activity and increase soil organic fertility, but most of the measures are still at a relatively primitive stage, because most beach saline-a...

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