The northern cotton area is covered with plastic film, and the seedlings before emergence and the subsequent soil sealing are two essential operations. The seedling operation is currently carried out mainly by hand. The sealing operation can be replaced by a machine. At present, the Guoxinhejian Park and the Jinghai and Qinghe farm breeding bases are carrying out tractor sealing operations, saving a lot of labor.
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Why do you have to do the sealing work? Because cotton seedlings require higher ground temperature and appropriate soil moisture, the film cover just meets these two needs. Fangmiao practices have destroyed plastic film intact, the film features a raised temperature decrease soil moisture, especially a greater impact on the Cotton surroundings, plus five months late temperatures, the wind increased, the air humidity is lower, it is easy to cause cotton Severe deafness and nighttime ground temperature decline, affecting strong seedlings.
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In addition to warming and moisturizing, the sealing operation has two major advantages: one is to inhibit the growth of weeds around the cotton seedlings; the other is to make the cotton seedlings stable and not to be shaken by the wind.
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In June , the temperature and ground temperature increased further, which can meet the normal fertility needs of cotton plants. The film has completed its stage mission, and it is necessary to carry out membrane breaking and film uncovering operations.
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From the perspective of environmental protection, it is an inevitable development trend to replace the current plastic mulch with 100% biodegradable mulch film and other non-polluting high-tech means.
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Source of information: Farmer Internet
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