When greenhouse cucumbers are suitable for water, fertilizer, and temperature, if they adopt the following five technical measures, they can greatly increase their output. The specific measures are:

First, the sprayed leaf fertilizer spray 0.3% urea solution at the seedling stage, can promote early-onset seedlings, can also be sprayed 0.5% of ferrous sulfate solution, and promote seedling robust. In the 7th leaf, spraying 0.2% boric acid solution can prevent fruit drop and fruit drop. When a large number of melons are sprayed, a mixture of 0.3% potassium dihydrogen phosphate and 0.3% urea is sprayed to increase the yield of melon.

2. The first tendril of cucumber plants must appear from the big shed. The volume must be taken once every other day. The volume of growth should be reduced, the coarse growth of stems should be increased, the percentage of main vines should be increased, and the number of side vines should be increased. The output increased by 15% and the total output increased by 10%.

Third, increase the use of gas fertilizer to increase gas fertilizer that increases carbon dioxide, significant increase in production. Put a few barrels of fertilizer solution in the summer and autumn shed, and use the fermentation method to produce carbon dioxide. In winter and spring, carbon dioxide is produced by using a stove or burning biogas, and the carbon dioxide concentration in the shed is kept between 1000 and 1800 mg/kg, which is halved on cloudy days. 20 days of guacamole application can increase yield.

Fourth, artificial pollination cucumber flowers are grassy, ​​male and female points. In Daejeon, they rely on insects to pollinate, and there are no insects in the shed, which often causes poor pollination and affects the melons. After the cucumber blossoms, the male stamens are used to gently wipe the female stigma several times to reduce shedding and picking melons and hyacinths.

Fifth, set the reflector screen Install reflective mirrors in the greenhouse north wall, you can increase the cultivation of light to 120% of the outdoor light intensity; also in the northern wall of the greenhouse brush white ash, improve the light intensity of the cultivation bed, thereby increasing production.

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