How to fertilize roses? When is the best time to top fattening?

Friends who like to grow flowers and plants should be no stranger to roses, and we often see roses on various festivals in our lives. As a bouquet of love, roses have always been very popular in the market. It is not easy to plant roses, but it is easy to master the method. There are large areas of rose cultivation bases in many parts of our country, and many friends like to raise some at home. So the problem of how to fertilize roses may have been encountered by all of us more or less. let's take a look at how to solve it.

How to fertilize roses

1. Characteristics of fertilizer requirement

The rose is different from other bouquets in that it needs different fertilizers during its growth stage, so we should first buy enough fertilizer. Nitrogen, phosphorus and potassium fertilizer is the basis and uses the most. Nitrogen fertilizer is an important nutrient for roses. Only when there is sufficient nitrogen fertilizer, rose plants can grow luxuriantly, lack of nitrogen fertilizer, rose growth is weak, leaves are withered and yellow, but if excessive nitrogen fertilizer is used, the plant will grow too long, making flowers grow malformed and affect yield. Phosphate fertilizer is mainly to promote the root growth of roses, for roses, root development is a key point, which can provide nutrition for petals, branches and leaves, but also maintain the quality of roses.

However, the demand for these three fertilizers varied at each growth stage, with the ratio of nitrogen, phosphorus and potassium at 3:1:2 in the early growth stage and 3:1:3 at the flowering stage. In addition, in addition to these three main elements, roses also need trace elements such as calcium, magnesium, zinc and boron, which should be added when planting.

2. Apply sufficient base fertilizer

What is meant by basic fertilizer? This problem is encountered by many novice rose farmers. Base fertilizer is before planting roses, we first fertilize the land, fertilizing the land is mainly to ensure the nutritional supply of the whole follow-up cultivation. The traditional base fertilizer is mainly organic fertilizer or compound fertilizer, which we can control by ourselves. If the soil is not fully fertilized, it is difficult to provide due help for the subsequent growth needs of roses. Generally, according to the amount of planting per mu, 3000-4000 kg of fully mature organic fertilizer is needed, and a certain amount of compound fertilizer needs to be added. The application of base fertilizer is best after the defoliation in autumn, and the time should be as early as possible, which can make the root sprout new roots and grow vigorously after the beginning of spring next year. If the base fertilizer is applied too late, it will be disadvantageous to the normal growth of the plant.

3. topdressing at the right time

Topdressing is an essential step in cultivating flower bouquets or planting green plants, because additional fertilizers are needed to provide nutrition during the growing period of all plants. At this time, we have to fertilize according to the growth of roses. First, in the budding stage, when the temperature rises and the underground root system begins to grow and develop, it is necessary to fertilize compound fertilizer to promote the rapid growth of branches and leaves of the plant; the second time is in the bud stage, when the bud is in the incubation period, the bud spreads its leaves, and the root growth reaches its peak, which requires a great amount of fertilizer, so it is necessary to apply fertilizer in time. The third time is in the full flowering stage, which is the key period of the rose, which is related to the height of yield and the quality of flowers, but the nutrients of the plant can not meet the needs of growth, so it is necessary to topdressing in time; the fourth time after flowering, the branches and leaves stop growing, the flowers have already matured and harvested, the photosynthesis of the plant is still going on, and a large amount of nutrients are accumulated in the root system, so whether to topdressing can be decided according to the plant condition.

The question of how to fertilize roses is summarized here today by Tuliu.com. Now there are many novice roses growers. It is suggested that we should make a reference according to the actual situation and do not blindly add fertilizer. Too much fertilization may also lead to overnutrition.