Tomatoes are warm vegetables, straight root systems, larger roots, and infinity-growing tomatoes can grow on their anniversary, harvest continuously and produce well。
(1) premium
Tomatoes range from seedlings to two real leaves. Premiums are generally neither fat nor watered. The surface should be kept dry and wet before planting, and water can be sprayed during drying, and external fat can be sought when there is a shortage of fat。
(2) the flowering season
After the planting of the tomatoes, essentially the bouquets have been divided, from the first flower to the fruit, and the bouquet period for the flowering is an important turning point for the transition of the tomatoes from nutrition to reproduction and nutrition. Post-planted management of hydro-fertilizers would benefit from pre-control and post-conciliated management measures. At the time of planting, sufficient water was installed, and five days later, the seed water was cooled, and the soil was subsequently maintained with a relative water content of about 65 per cent until the first ear of the fruit swelled to 3 cm in diameter, and the second ear of the fruit began to swell and then to follow up on the water。
(3) outcome period
The majority of the period between the first chorus and the end of the harvest is the outcome period. This period is characterized by the simultaneous growth of fruit and scavengers, the persistence of contradictions between nutritional and reproductive growth, and the frequent cyclicality of growth peaks, which often necessitates the adjustment of the scavenger relationship through such measures as the management of branches, scavengers and fatty water, in order to prevent acrimony or fruit from becoming redundant. Water should be 80 ~90 per cent in the field, with attention to small-scale water draughts, ensuring a balanced supply of soil moisture, and preventing fissures from being caused by dry and wet. High soluble potassium nitrogen fertilizer (1:1. 5) can be applied with fertilizer integration devices. Approximately 5 m3 per acre, fertilization of 3-5 kg, weekly application in spring and autumn, one application per week and one application every two weeks in winter。
There is a high demand for potassium fertilizer in the case of tomatoes with long reproductive periods, especially during the outcome period, where the principle of compost fertilisation in greenhouses is to re-apply nitrogen, phosphorus fertilizers in the preceding period, and to increase potassium fertilizers and microfertilizers in the medium and later period。
