苗木晚季施肥研究现状与展望

doi:10.11707/j.1001-7488.20110727

Abstract

Abstract:

Late-season fertilization(LSF), which is developed for preventing nutrient dilution during seedling hardening, is usually performed after the establishment of seedling apical bud. It has been found that late-season nutrient dilution can be alleviated by LSF. Seedling hardening, new root growth, growth, nutrient uptake, and survival after planting could be enhanced by LSF. Also, bud break might be advanced as well. However, most previous reports on LSF focused on fertilizer of nitrogen, whereas the effect of potassium on seedling cold hardiness is inconclusive, and other nutrient elements used as LSF are even much less reported. Usually LSF is applied for quite limited times, or at a constant rate. LSF, with a steady-state nutrient loading has been proven to significantly improve nutrient uptake during hardening.

Key words: late-season fertilization, seedling, nutrient, nitrogen, phosphorus, potassium

CLC Number:

S723.7

Wei Hongxu;Xu Chengyang;Jiang Lini. Current Development and Prospect on Late-Season Fertilization to Tree Seedling[J]. Scientia Silvae Sinicae, 2011, 47(7): 172-180.

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Current Development and Prospect on Late-Season Fertilization to Tree Seedling

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