Watermelon rational fertilization avoid what?
Watermelon fertilization is very important, some places need attention:
One bogey single application of a large number of nitrogen fertilizer watermelon fertilization is the most concerned about nitrogen, phosphorus, potassium, if a single application of a large number of nitrogen fertilizer, the plant is extremely easy and long, is not conducive to flowering melon and fruit development. According to the study, watermelon is mainly composed of nitrogen nutrition before sitting on melon, and the absorption of potassium is increased sharply after sitting on melon; the nitrogen and potassium levels are basically equal in the hair removal stage of melon, and the absorption reaches the peak in melon stage, and the melon matures. The absorption of nitrogen and potassium was significantly reduced during the stage, and the absorption of phosphorus was relatively increased; the ratio of nitrogen, phosphorus, and potassium was 3.8:1:2.8 for the seedling period, 3.6:1:1.7 for the extension period, and the period of melon growth was high. For 3.5:1:4.6, it is recommended that microbial fertilizers such as fungicide.
Second, bogey use of chlorine fertilizers watermelon is a chlorine crop, the application of chlorine fertilizers (such as ammonium chloride, potassium chloride, etc.) will affect the accumulation of sugar, so that melon taste fade.
Third, avoid excessive application of human excreta, the application of too much human waste, easily lead to plant leggy, so that the melon is difficult, melon skin thick and taste sour, and the best fertilizer fermentation agent for fermentation.
Four bogey in the topsoil fertilization of watermelon topdressing pay attention to deep facilities, after the application of timely soil, especially nitrogen fertilizer, if the form of application, nitrogen is easily volatile ammonia, harm the leaves, but also to reduce fertilizer efficiency.
The five bogey rainy weather fertilization rainy weather, high humidity, soil moisture, fertilizer, fertilizer is not only easy to lose, and can easily lead to watermelon long.
Six bogey fertilization site too close to the roots of the watermelon fertilization site, generally requires about 10 centimeters from the main root; too close to easily burn roots, affecting plant growth.
Seven bogey drought when the top dressing weather is dry, the soil moisture content is low, this time applying chemical fertilizers, will make the cytoplasmic solution of the root cells to infiltrate, resulting in plant physiological water shortage and withered.Hydrolyzed Sponge White Powder
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