One, lost "pawn" security "car"
Remove the earliest flowering first or second flower or the first and second fruits of the tomato flower head to reduce nutrient consumption and accumulate sufficient nutrients to supply the above other flowers and fruits. The fruit size is the same, maturity is close, and deformed fruit is less.
Second, more flowers, less fruit
For each flower on the flower head to open more points, generally leave 4 to 5 high quality fruit per panicle, must point 8 to 9 flowers. When the young fruit diameter is as long as 1 cm, 4 to 5 fruits of similar appearance and size will be selected to eliminate the larger fruit, malformed fruit, defective fruit, and pest and fruit. When it matures, the fruit is uniform and uniform.
Third, promote coloring before cooking
When the tomato fruit matures, the 40% ethephon 100 to 200 times liquid can be spotted on the spike branch (5 to 8 mm long) above the stalk with a brush, prompting premature fruit ripening and coloring, increasing yield. . However, it should be noted that when the flower is spotted, it cannot be located at the "joint" (stem and branch junction), otherwise it will cause serious fruit drop phenomenon; do not spray ethephon on the fruit, otherwise it will not only cause premature aging of the plant, It will also affect the commercial nature of the fruit, and the ripened fruit will not tolerate transport; the concentration of ethephon cannot be too high and the time cannot be too early, otherwise it will cause the fruit to ripen prematurely, resulting in reduced production and income.
Fourth, topdressing potassium fertilizer
When the tomato lacks potassium, its coloration is poor, tendon rot is easy to occur, and its yield is low. Therefore, when the fruit diameter exceeds 3 centimeters and begins to enter the inflating stage, the water is sprayed with 10 to 20 kilograms per acre. Potassium sulphate to increase the weight of the fruit, reduce the hollow fruit, make it taste good, bright color.
Chloride is a common inorganic anion in water and wastewater. Chloride ions are found in almost all natural water,and their levels vary widely. In rivers, lakes. In marshes, chloride levels are generally low,but in seawater,salt lakes,and some groundwater levels can be as high as tens of grams per liter. In the human survival activities,chloride has very important physiological functions and industrial uses.Because of this,a considerable amount of chloride ions are contained in domestic sewage and industrial wastewater.
If the content of chloride ion in the book reaches 250mg without litres,the corresponding cation is sodium,will feel salty; High levels of chloride in water can damage metal pipes and buildings and hinder plant growth.
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