T/GYLCX 11-2024 The efficient cultivation technical specifications for poplar lumber plantations

Scope

Scope: This standard specifies the technical requirements for the efficient cultivation of black locust timber forests, including seedling planting, fertilization techniques, management techniques, and inspection and acceptance for archiving purposes. Applicable to the construction of efficient cultivation of black locust timber forests in enterprises; Main technical content: - High-quality seedlings: Seedlings selected or identified through breeding, with excellent genetic quality, robust growth, well-developed root systems, and free from pests and diseases. - Base fertilizer: Base fertilizer refers to fertilizers applied before crop sowing or transplanting, or at the end or beginning of the growing season for perennial crops, in conjunction with soil cultivation. Its purpose is to create favorable soil conditions for crop growth and meet the basic nutritional requirements of crops. The fertilizers used for base application mainly include organic fertilizers and fertilizers with low mobility or slow fertilizer effect in the soil, such as phosphorus fertilizers, potassium fertilizers, and some trace element fertilizers. - Top dressing: Top dressing refers to fertilizers applied during plant growth to supplement and regulate plant nutrition. The main purpose of top dressing is to make up for the shortage of base fertilizer and meet the nutritional needs of plants in the middle and late stages. Top dressing is applied flexibly, based on the element deficiency symptoms exhibited by crops at different growth stages. Nitrogen, potassium, and trace element fertilizers are the most common types of top dressing. Top dressing can be applied either by soil application or spraying. Soil application is prone to mechanical damage, while spraying is suitable for emergency nutrient deficiency situations, with fast nutrient supply but insufficient supply, so it is mostly used for the application of trace elements with less demand. In agricultural production, base fertil

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