A high-quality and high-yield fertilization method for repeated planting of watermelons in greenhouses

Abstract

The invention discloses a high-quality, high-yield fertilization method for repeated planting of watermelons in greenhouses, comprising (1) bottom application of high-concentration balanced humic acid complexed organic-inorganic compound fertilizer, high-concentration and high-potassium humic acid complexed organic-inorganic compound fertilizer and Humic acid trace element organic fertilizer, (2) topdressing high-concentration and high-nitrogen humic acid complex organic-inorganic compound fertilizer during watermelon climbing period, (3) topdressing high-concentration and high-potassium humic acid after the young watermelon sits stably Complex organic and inorganic compound fertilizer. The content of humic acid in the bottom application fertilizer of the present invention is high and the dosage is large, the root system of watermelon is well developed and does not grow vigorously, no need to spray foliar fertilizer, the yield of watermelon per mu reaches 8000 kg, the sugar content is 15-30% higher than that of grafted watermelon, and the soil structure is improved. Effective improvement, the soil ecological function has been optimized and improved; while achieving high yields, the number of times of topdressing and pesticide spraying has been reduced, the purpose of simplifying agricultural operations has been achieved, cost saving and efficiency increase have been achieved, and the environmental threat of unreasonable application of fertilizers has been reduced. Increased food and agricultural income and sustainable agricultural development provide a guarantee.

Description

technical field [0001] The invention belongs to the technical field of crop cultivation, and in particular relates to a high-quality and high-yield fertilization method for repeated planting of watermelons in greenhouses. Background technique [0002] Watermelon is one of people's favorite fruits. It is rich in carbohydrates, amino acids and vitamins. It has the functions of quenching thirst, reducing inflammation and heat, diuresis and lowering blood pressure. It has a large market demand and a large planting area. But in the past ten years, the taste of watermelon has changed, and it is not so refreshing and juicy. The reason for the obvious decline in watermelon quality is related to repeated cropping and grafting, but the fundamental reason is that the fertilization method is unscientific and cannot meet the habits and management requirements of watermelon. [0003] All crops show many diseases, poor quality, low yield or decline, which is called the obstacle of repeate...

AI Technical Summary

Problems solved by technology

Avoid repeated cropping of watermelon, the severe occurrence of fusarium wilt in heavy cropping planting, and the phenomenon of dead trees is difficult to control. Grafting watermelon seedlings with pumpkin roots and gourd roots reduces the occurrence of cypress wilt, which can cause dead seedlings and rotten melons caused by splinter blight, blight, anthracnose, etc. There are also many phenomena, the taste and taste are obviously worse, and the time to mature and market is delayed; without grafting and planting, the dead trees are serious, and the taste and taste are better than grafting, but still can not reach the natural taste and sweetness of watermelon.

Although in recent years, in order to improve quality and reduce diseases, melon farmers have changed the single use of inorganic compound fertilizers to combined use of inorganic compound fertilizers and organic compound fertilizers such as chicken manure or pig manure in the cultivation of watermelons in greenhouses, and the quality of watermelons has improved. The salinization and acidification of greenhouse soil is accelerating, and there are many physiological and infectious diseases, which increase the chance of spraying pollution and labor costs

Melon growers feel more difficult and helpless to grow watermelons in greenhouses

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