This kind of plant needs more P and K and less n (because the plant itself has rhizobia, which can be used to fix nitrogen elements). Therefore, the first choice of these two elements rich fertilizer
In spring, everything wakes up. Most of the plants have entered the vigorous growth and development period. The requirements for various substances are relatively high. At this time, the number of operations can be increased. You can apply oil residue water every ten days or two weeks or so (it should have been fermented).
When the plant appears flower bud and enters flowering stage, you can choose to spray it with (KH2PO4) solution (concentration controlled at about 0.1%).
If in autumn and winter, especially in winter, their growth tends to be slow or stagnant, and there is basically no requirement for nutrients, we can gradually reduce the frequency of fertilization, and stop fertilization completely in the severe cold.
In order to reduce the pressure of fertilization, special attention should be paid to the selection of soil. Basin soil with sufficient nutrients and good drainage performance is the best choice. In this way, you can reduce the number of times to apply fertilizer by manpower, which is not only from nature, but also beneficial to the growth of plants.
In the selection of fertilizer, in order to achieve a comprehensive balance of nutrients, it is necessary to comprehensively consider the phosphorus and potassium elements (do not need to consider the nitrogen elements), not to focus on a particular one, which will make the growth of plants very unbalanced.
Before each fertilization, it's better to go through two steps - to loosen the soil and remove weeds around the plants in advance, which is more conducive to the absorption of nutrients.
