Agricultural technology 1. Rational fertilization and irrigation of tomato roots are developed and strong, and it is resistant to fertilizer, semi-drought-tolerant and not tolerant to crops. Fertilizers are best based on organic fertilizers. In general, the use of pig manure and other farmyard manure is more than 1,000 kg, borax is 1 kg, peanut bran is 50 kg, and compound fertilizer is 50 to 60 kg. Farmyard manure and part of peanut bran and 20 kg of compound fertilizer as base fertilizer, the rest for topdressing.
1.1 cultivating combined with topdressing and planting for about 15 days, at this time the root has been growing, in order to maintain high yield, a cultivating can be carried out. 20 kg of compound fertilizer and 30 kg of peanut bran are applied between the plants, and the soil in the middle of the hoe is covered with a taro to cover the fertilizer, so that the roots are rooted and topdressed to promote vegetative growth. Be careful not to hurt the root system to avoid getting sick.
1.2 Topdressing with the principle of heavy weight and two heads, the application of nitrogen fertilizer before the result is not good, preferably compound fertilizer, appropriate application of potassium fertilizer, 2.5 kg of potassium chloride per application. If it is a type of early maturing or self-sealing top type, it is necessary to apply fertilizer early to promote early growth, and start re-application in the second inflorescence; late-maturing and non-self-sealing top types are generally prosperous, and it is necessary to properly control topdressing and prevent stems and leaves. It grows too prosperous, forming a long seedling, and begins to reapply when the third inflorescence is set. Generally, 15 kg of compound fertilizer is applied, or 10 kg of urea and 5 kg of potassium nitride, which are 3 to 4 times in succession, 7 to 10 days apart. To the fruit harvest period, topdress every 5 to 7 days, 5 kg compound fertilizer each time.
1.3 Water management The first inflorescence of the tomato should not be excessively supplied before the fruit is placed. After the second inflorescence, the fruit begins to enter the fruiting period. The soil should be kept moist and should not be neglected.
1.4 external topdressing of various types of auxin, potassium dihydrogen phosphate, green Fenwei, etc. for foliar topdressing, can promote leaf color green, improve fruit quality, extend harvest time, increase yield.
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