Timely harvesting and seed retention skills of planting Peanut

Mastering the suitable harvest time of peanut is very important to improve the yield and quality of peanut. While harvesting peanuts, we should pay attention to selecting and keeping good seeds to ensure high peanut yields in the coming year. The suitable harvest time and seed retention techniques of peanuts are introduced as follows:

First, harvest at the right time. As peanuts are crops that blossom above ground and bear fruit underground, it is generally difficult to see whether the pods are full and mature from the outside. At the same time, peanuts bloom continuously and bear pods continuously, so the maturity of pods is not consistent. Harvesting too early or too late will affect yield and quality. Therefore, it is particularly important to determine the suitable harvest time of peanuts, which can be seen from the following three aspects.

1. Look at the childbearing period. The general growth period of peanut varieties is about 125 days.

two。 Look at the temperature. If the average temperature of day and night is below 12 ℃, peanuts can be harvested if they have stopped growing.

3. Look at the plant. Under normal circumstances, when the peanut enters the late fruiting stage, most of the nutrients in the plant have been transported to the pod, the plant shows senescence, the top stops growing, the upper leaves turn yellow, and the basal and middle leaves fall off. at this time, most of the pod seeds are full and can be harvested.

Second, leave a kind of skill. When selecting seeds, special attention should be paid to choosing pods from plants with the characteristics of this variety, consistent maturity, neat branches and concentrated and full fruit as seeds. The pods of plants with the following symptoms cannot be used as seeds.

1. Greedy green late-maturing plants. This kind of plant developed poorly in the early stage, but grew too much in the later stage, which not only yielded late results, but also had less fruit and poor plumpness.

two。 Prematurely debilitated plants. Peanut pods are not yet mature, but the aboveground plants decline prematurely, and the accumulation of organic matter in kernels is not sufficient. For seed use, not only the germination rate is not high, but also the characteristics of this variety will be lost, which will decline year by year and directly affect its yield.

3. Diseased plants. The pods of plants suffering from Fusarium wilt, leaf spot and peanut rust will not only spread the disease, but also mostly empty pods and shrunken seeds.