旱薄山地板栗早期丰产优质栽培试验

CULTURE TECHNOLOGY FOR ADVANCING HIGH YIELD PERIOD WITH GOOD QUALITY OF CHINESE CHESTNUT IN DROUGHT AND BARREN MOUNTAIN FIELDS

１９８６～１９９５年在五莲县王世疃乡北田庄村，对６．６７ｈｍ２板栗密植园进行丰产优质栽培技术试验，以解决旱薄山地板栗结果晚、产量低、质量差的问题。通过选用良种壮苗、科学整地、施肥、浇水、人工授粉、促成雌花及整形修剪等措施，使板栗试验园最高产量达５６８．４ｋｇ／ｈｍ２。１０ａ累计平均产量为３５３５３．３５ｋｇ／ｈｍ２，平均一级果率达９７．３％，单粒重９．２８ｇ，平均每年每公顷盈利１９０３８．６４元，经济效益显著。

In order to solve the problems of late fruit setting,low yield and poor quality of Chinese chestnut in the drought and barren mountain fields,the culture techniques for advancing high yield period with good quality were studied at 6.67hm2 Chinese chestnut close planting orchard in Beitianzhang village of Wangshijing town of Wulian county from 1986 to 1995.By improving soil through deep tillage,using good strains of seed and stout seedings,plastic film covering,grass covering,foliage dressing and pruning etc.,the highest yield of 568.4kg/hm2,firstclass fruit rate of 93.3%,single kernel weight of 9.28 g and average profit of 19004.44 yuan/hm2.year were achieved in the experimented Chinese chestnut orchard.