Lemon planting methods are as follows:
1, the best time to propagate.
Lemon is supposed to be a four-season flowering and fruiting species, while the northern potted plants are mostly spring flowering and fruiting.
2, the best growing soil.
Lemon likes acidic soil, so lemons must be raised often water ferrous sulfate water (north), like light, management is more rough, move to the house in winter around 0 degrees, and orange is similar to the way of raising.
3, growth humidity requirements.
Lemon in the growth and development of the need for more water, but too much water and not easy to rot. Generally speaking, the spring is the period of the tips and leaves, buds and flowers, to moderate watering. Summer light, high temperature, need more water. However, it should be in the right amount at the right time, otherwise it will cause fruit drop. Autumn is the autumn growth, fruit rapid expansion period, there must be sufficient water. Late fall and winter is the flower bud differentiation period, the potting soil, on the other hand, should be on the dry side.
4, the optimal growth temperature.
Generally need to put the plant at noon suitable for growth in the average annual temperature of more than 15 ℃, the optimal growth temperature of 23 ℃ to 29 ℃, more than 35 ℃ to stop growing, -2 ℃ that is, frost damage. Lemon summer generally do not need to be cooled, before the frost into the room, after the Qingming out of the room, can be safe overwintering.
5, the best growth of light.
Lemon for light-loving plants, however, the sun is too strong, the growth and development.
Precautions for breeding lemon trees:
1. Spreading fertilizer.
Lemon prefer fertilizer, in addition to potting, potting full base fertilizer, the growing period should adhere to the principle of thin fertilizer. The number of times and the amount of fertilizer, according to the growth, the climatic period to determine. Such as the application of liquid fertilizer to fully fermented cake fertilizer water is good, cake water ratio of 1:200. northern soil alkaline, can be added to the fertilizer solution of ferrous sulfate, with a slightly acidic nutrient solution.
2, watering points.
Lemon in the growth and development of the need for more water, but too much water is not easy to rot the roots. Generally speaking, the spring is the period of the tips of the leaves, buds and flowers, to moderate watering. Summer light, high temperature, need more water. However, it should be in the right amount at the right time, otherwise it will cause fruit drop. Autumn is the autumn growth, fruit rapid expansion period, there must be sufficient water. Late fall and winter is the flower bud differentiation period, the potting soil should be on the dry side.
3, pruning essentials.
Pruning is generally divided into winter and summer pruning. Winter pruning should be in line with the "delete dense stay sparse, weak stay strong" principle, cut off the dead branches, short cut weak branches and no first empty role of the long branches. Summer pruning in the non-fruitful trees mainly short cut too long branch tips, in the fruit trees to erase the summer tips, short cut the canopy periphery in the upper part of the decline of the branches.
4, potting soil replacement.
Potted lemons in the spring March to April must be turned pots to change the soil. If the pot is too small, can be changed to adapt to the pot, if the pot is still suitable, the original pot can be replaced with new soil, change the pot for the soil should be applied to the bottom of the fertilizer.
5, breeding points.
Pay attention to the fertilization of pots, foliar spray fertilizer, cultivate strong fruiting mother branch. The main measures to preserve the fruit, one is to strengthen the supply of fertilizer and water, the accumulation of nutrients; the second is to carry out artificial pollination; the third is the thinning of flowers and fruits. Lemon fruit is large, need more nutrients, normal leaf to fruit ratio of 30 to 40: 1.
In accordance with the principle of weak to stay strong, evenly distributed, first of all, thinning too many over-dense flower buds; and then in the young fruit of 1 cm in size, thinning part of the fruit; finally in the physiology of fruit drop, in accordance with the ratio of fruit to determine the fruit of the leaf. Can also be weak branches do not stay, strong branches only stay 1 fruit.
6, disease and insect control.
Pest control lemon pests are red spider, shellfish, aphids, etc., available 80% dichlorvos emulsion 1500 times spray control.