High-quality and high-yield fertilization method for continuous-cropping planting of watermelon in greenhouse

Abstract

The invention discloses a high-quality and high-yield fertilization method for continuous-cropping planting of watermelon in a greenhouse. The high-quality and high-yield fertilization method comprises the following steps: (1), applying a high-concentration balanced humic acid complex organic-inorganic compound fertilizer, a high-concentration high-potassium humic acid complex organic-inorganic compound fertilizer and a humic acid trace element organic fertilizer at the bottom; (2), topdressing by using a high-concentration high-nitrogen humic acid complex organic-inorganic compound fertilizerin a vine climbing period of the watermelon; (3), after young watermelons are stably set, topdressing by using the high-concentration high-potassium humic acid complex organic-inorganic compound fertilizer. By the high-quality and high-yield fertilization method, a bottom fertilizer is high in humic acid content and large in using amount, a root system of the watermelon is developed and not prosperous, a foliar fertilizer is not required to be sprayed, the yield of the watermelon is 8000kg per mu (a Chinese area unit), the sugar content of the watermelon is 15-30% higher than that of graftedwatermelon, the soil structure is effectively improved and the ecological functions of soil are optimized and improved; the number of topdressings and the number of pesticide applications are reducedwhile high yield is achieved, so that the goal of simplifying the farming operation is achieved, cost reduction and efficiency improvement are achieved, environmental threat caused by unreasonable application of the fertilizer is reduced and a guarantee is provided for income increase of grain farmers and sustainable agricultural development.

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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