Water and fertilizer utilizing method for root limitation type culture of grapevine

Abstract

A method for applying the fertilizer and water to grapevine to limit its root domain includes the method A for applying nutritive liquid and the method B for irrigation. The said method A features that the integrated high-concentrating liquid fertilizer is applied twice per week before the kernel hardening period and the low-concentration one is then applied after the kernel hardening period. Said method B features that the irrigation standard is that the water potential in soil is 158.5 kPa before germination, 31.5 kPa from germination to the fruit softening period, and 158.5 kPa in later phase.

Description

technical field [0001] The invention relates to a method in the technical field of cultivation of agricultural and forestry crops, in particular to a method for using fertilizer and water in restricted cultivation of grape roots. Background technique [0002] It is generally believed that fruit trees are perennial crops, and only by cultivating a strong and tall tree structure can they have high yield and longevity. Therefore, the concepts of "deep roots and big trees" and "deep plowing and more fertilization" have dominated people for a long time. However, this traditional method has at least the following disadvantages: ① In order to cultivate tall trees, it is necessary to form a specific tree shape through heavy pruning, which will cause young trees to grow excessively, with few flowers, low yield and poor quality; ② deep plowing Fertilization in a wide area makes the root system widely distributed, and it is difficult to judge the exact location of the root system. Fer...

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Problems solved by technology

However, this traditional method has at least the following disadvantages: ① In order to cultivate tall trees, it is necessary to form a specific tree shape through heavy pruning, which will cause young trees to grow excessively, with few flowers, low yield and poor quality; ② deep plowing Fertilization in a wide area makes the root system widely distributed, and it is difficult to judge the exact location of the root system. Fertilization has a certain degree of blindness; some fertilizer components applied in the early stage sometimes do not move to the root system or extend to the fertilizer until the fruit quality is formed. parts, causing delay in fertilizer effect

After searching the literature of the prior art, no literature reports identical or similar to the subject of the present invention have been found