Choosing to keep good peanut seeds is an important part of seizing the high yield of peanuts. According to practice, the peanut planted in spring must be selected for the remaining year's fall peanuts for planting. Because the spring peanuts are seeded, the storage time is long, and the seeds are not well kept, so that the germination rate is low after spring sowing in the following year, resulting in serious shortage of plants. The use of spring peanuts immediately after the harvest type of autumn peanuts, with autumn peanuts reserved for spring peanut seeds, seed vigor, dormant period, low temperature, seedling fast, emergence rate of up to 90%. Therefore, we must vigorously advocate the use of autumn peanuts. In addition, there are four tips for peanut seedlings:
First, early harvest as peanuts, can be harvested earlier than the large area of ​​5 days of harvest, strong vitality, emergence rate is high.
Second, to choose sunny harvesting peanuts must choose to harvest in sunny weather, and immediately in the concrete or bamboo baskets loaded and dried (temperature does not exceed 35 °C), generally control the peanut seed moisture content of 5% -10% is appropriate. After the seeds are dried, they should be subjected to grain selection. The grains and 1 grain (ie, "Bean Bean") should be picked out, and 2-3 or more grains of peanuts should be reserved.
Third, in the low-temperature dry place storage should choose low-temperature dry warehouse storage. At present, the tile storage method commonly used by farmers is to use a tile cylinder. The bottom of the cylinder is filled with red bricks. Fresh ash is placed in the bottom layer of the cylinder. Then peanut seeds are placed on the bottom of the cylinder. The cover is then covered with grass ash. Sealing with mud can also preserve peanut seeds better.
Fourth, avoid heaping or rain after harvest of peanut seeds, should not be stacked or wetted by rain. In the event of rain, seeds should be spread indoors and dried as soon as possible. If the rainy days are too long, these pods should not be used for conservation purposes.
There are two ways for paper sizing, one is in front of the sheet forming (beating or ingredients) add sizing agent in pulp called intracytoplasmic sizing, another is in sheet forming after coating on paper or cardboard surface is called the surface glue.The sizing agent of pulp is mainly rosin sizing agent, synthetic sizing agent, paraffin sizing agent and neutral sizing agent.Surface sizing agent and neutral sizing agent.Surface sizing is mainly to improve the smoothness of the surface of the paper, reduce the porosity and prevent the surface hair and hair loss.The more used is modified and unmodified starch, and the PVA is also used.Other products include paraffin emulsion, animal glue, carboxymethyl cellulose, polyurethane, styrene-maleic anhydride copolymer, acrylate copolymer, dihydroxy fatty acid compound, etc.
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