三年生枳砧丘陵坡地椪柑丰产栽培研究

STUDIES ON THE HIGH YIELD CULTURE TECHNIQUES FORPONKAN MANDARIN TREES ON TRIFOLIATA ROOTSTOCKS INTHREE-YEAR HILL CULTURE

本试验采用半矮化枳砧(Poncirus trifoliata(L.)Raf.)嫁接椪柑(Citrus reticuala Ponkan)良种“东13号”,在红壤丘陵坡地进行了密植早结丰产栽培研究。结果表明,在每亩坡地上密植180株,采用适当的控梢整形、灌水施肥、促花保果及病虫害防治等技术,三年生枳砧椪柑可获得平均亩产2714公斤的产量。本文对丘陵坡地枳砧椪柑密植、早结丰产栽培的主要技术作了探讨。

In this experiment, studies on the dense planting, early bearing and high yield culture techniques were carried out with Ponkan (Citrus reticulata)cultivar' Dong-13' trees grafted on semi-dwarfing trifoliata rootstocks and cultured in hill land of red loam. In three-year-old hill cultured ponkan trees on trifoliata rootstocks at a density of 180 plants/mu, the high average yield of 2714 kg/mu was achieved by using techniques including adequate trimming, irrigating, fertilizing, disease and pestcontrolling, flower forcing and fruit retention. The main techniques for close planting , early bearing and high yield in hill cultured ponkan trees on trifoliata rootstocks are dealt with in this article.