Pollution-free greenhouse watermelon growing method

Abstract

The invention relates to the field of pollution-free greenhouse watermelon culture and particularly discloses a growing method for a first batch of greenhouse watermelons and a second to fifth batch of greenhouse watermelons. According to the climate and growing characteristics of the greenhouse watermelons in the Yangtze River basin, fertilizer and pesticides are applied according to different growing periods of the watermelons, so that the watermelons at the different periods fully obtain required nutritional ingredients, stable, full and normal growth is maintained, the yield and the quality of the greenhouse watermelons are improved, and the pollution-free and high-quality greenhouse watermelons are obtained.

Description

technical field [0001] The invention relates to the field of watermelon planting in a pollution-free greenhouse, and specifically discloses a cultivation method for the first batch of watermelons in a pollution-free greenhouse and two to five batches of melons. Background technique [0002] The main root system of watermelon, the leaves are alternate, with deep lobes, shallow lobes and entire margins. The fruits are spherical, oval, elliptical, cylindrical and so on. The fruit surface is smooth or grooved, and the epidermis is green-white, green, dark green, dark green, black, with fine netting or strips in between. The pulp has milky white, light yellow, deep yellow, light red, bright red and other colors. The meat is divided into tight meat and sand flesh. Seeds flat, ovoid or oblong, smooth or fissured. The seed coat is white, light brown, brown, black or brown, monochromatic or variegated. It is a long-day plant and likes strong light. The light saturation point is ...

AI Technical Summary

Problems solved by technology

Watermelons have a large demand for calcium, ranking third, close to nitrogen. Traditional fertilization only pays attention to the application of balanced compound fertilizers such as Norway (15*3), which often results in excessive nitrogen, insufficient potassium, and calcium deficiency. The color is not red, the sugar content is low, the defects such as umbilical rotten melon, hollow melon and yellow heart melon increase

[0005] And for watermelons, different types of elements are needed in different periods. For example, the demand for calcium in watermelons is greater than that of nitrogen during the vine stretching period. The ratio of nitrogen and calcium is imbalanced, and the nitrogen is too much. When the humidity is high, it is easy to cause the melon vines to grow excessively, resulting in low yield of the first batch of melons.

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