How to raise strawberry seedlings short and strong

Water and fertilizer management: adequate amount of water should be irrigated in summer, and quick-acting fertilizer should be applied before the peak growth period. Loosening soil and weeding: combined with mid-ploughing and weeding, 48% trifluralin EC was sprayed with chemical herbicide 48% trifluralin EC at 150-200ml / mu and 40-50kg / mu. Removal of leaf buds: removal of dead leaves and buds on the mother plant. Prevention and control of diseases and insect pests: special attention should be paid to the control of underground pests, aphids, red spiders, anthrax and leaf spot.

First, how to raise strawberry seedlings

1. Water and fertilizer management

(1) Water application

① strawberries like the sun and generally live in loose, fertile, sunny soil with good drainage and irrigation.

② root distribution is relatively shallow, mainly distributed in the shallow soil layer of about 15-20cm. When the summer temperature is high, soil water evaporation is easy to suffer drought, resulting in drought or death of seedlings. At this time, strawberry seedlings should be irrigated with enough water to meet the basic needs.

③ but should not use flood irrigation at one time, it is appropriate to choose ditch irrigation before and after dusk.

(2) fertilization

Topdressing strawberry seedlings after watering, applying quick-acting fertilizer before the peak growth period, watering with diluted human feces and urine in the amount of 500kg/ mu, or mixed application with urea 5.5kg/ mu diluted with proper amount of water, 3-4 times.

2. Loosen the soil and weed

The main results are as follows: (1) Strawberry seedlings are often loosened in the seedling stage, and combined with mid-tillage and weeding, it is beneficial to keep the soil loose, so that the stolon seedlings are easy to take root on the soil surface.

(2) for weed damage caused by too many weeds, this situation can be sprayed with chemical herbicides. Before growth, 48% trifluralin EC 150-200ml/ mu is mixed with water 40-50kg/ mu, diluted and sprayed on the soil surface can be effective. Weeds in 3-5 leaf stage of Monocotyledon can be effectively controlled by leaf spraying.

3. Remove the leaf bud

The main results are as follows: (1) when the strawberry seedlings grow new leaves, the leaf buds should be removed in time, mainly to remove the withered leaves and the flower buds on the mother plant, which can concentrate nutrients and reduce unnecessary loss, so as to promote the growth and development of rhizomes.

(2) in order to prevent a large number of leading stems, pressure vines and stolons from growing, they can be evenly dispersed to prevent cross or overlap from hindering growth, and small soil blocks are used to press stems at the long seedlings, which is beneficial to the deep root system to grow into strong seedlings.

(3) in order to increase the number of stolons and seedlings of strawberry seedlings, plant hormone 920 can be sprayed during the peak growth period, dissolved with 1g 920 powder and proper amount of alcohol, and then diluted with 20kg water. Pay attention to uniform spraying, do not re-spray or miss spray.

4. prevention and control of diseases and insect pests

(1) Underground pests

It can be irrigated and killed with 1000 times of 90% crystal trichlorfon or 1000 times of phoxim EC.

(2) aphids and red spiders

Can be used omethoate, imidacloprid, acarbao, Lesbon and other spray.

(2) anthracnose and leaf spot

Before the peak season of strawberries or in the rainy season, 50% carbendazim wettable powder, 70% methyl thiophanate wettable powder and 75% chlorothalonil wettable powder can be used for 4-6 times alternately.

Matters needing attention in raising strawberry seedlings

1. In the rainy season, drain strawberry seedlings in time to avoid stagnant water; during the peak growth period of stolon and the rooting period of seedlings, dry and wet can be seen by proper watering; drought resistance and seedling protection should be properly shaded to prevent seedling burns in summer drought season.

2. After thinning and pseudo-planting, the seedlings were raised in the greenhouse, and the seedlings with 3-4 leaves were transferred to the pseudo-planting bed in batches from late June to early August.

2. False planting and raising seedlings from late August to early September, in addition, the new seedlings in the greenhouse after late August and the middle of September in the open field should be removed in time.