The use of corn stalks to increase soil organic matter in greenhouses includes straw reactors and straw returning.
The straw reactor is to put the whole corn stalk into the shed so that it will rot naturally in the soil, thereby increasing the organic matter of the soil. Specific method of operation: First dig a 60 cm wide and 50 cm deep groove every 60 cm before the vegetable is planted, and then apply the whole corn stalk, with a thickness of about 20 cm, and then apply 10% of the weight of the corn stalk. Into manure or other farmyard manure, or urea or ammonium bicarbonate applied to 5% of the weight of corn stover, and then irrigation so that the farmyard manure or urea evenly distributed on the corn stover, and then backfill the soil. Nitrogen fertilizers such as farmyard manure or urea are mainly used because the decomposition of straw by microorganisms requires a certain amount of nitrogen as an energy source, which can accelerate the decomposition of straw. After using straw reactors in this way, carbon dioxide in greenhouses can be increased in the winter to meet the demand of carbon dioxide for vegetable growth. However, it should be noted that the ditch applied to corn stalks should be used as a line of operation. Colonies that are not applied to corn stalks should be planted to prevent burning of roots. In the second year, corn stalks were planted in the rows of planting vegetables, which were then applied in the sheds for two years, so that the content of organic matter in the sheds was significantly supplemented.
Straw brewing method is relatively simple, first the corn stalks are crushed, and the proportion is 75% to 80%, and then 15% to 20% of the soil is mixed, and then nitrogen fertilizer such as urea is added in a weight of 4% to 5% of straw, and then three The well-mixed, piled into a pile of about 1 meter high, and then fill enough water to fully soak the corn stalks into a mud, and finally use the mud to seal the straw pile. In the past, when a vegetable farmer made straw fertilizer, it usually did not use a mud seal, which often caused dry skin, so that the surface could not be fully decomposed by about 20 cm.
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