三门县甜瓜—秋马铃薯轮作栽培技术OA

This paper summarized the efficient rotation model and key cultivation techniques of muskmelon and autumn potatoes in Sanmen County,Zhejiang Province.In terms of crop scheduling,muskmelons were sown in mid-to-late December,transplanted in early January of the following year,and harvested from early April to the end of July.Autumn potatoes were sown in mid-September and harvested in early December.Key cultivation techniques for muskmelons include selecting varieties with strong resistance and good marketability,such as Dongfangmi No.1,and applying sufficient base fertilizer;using nutrient bowl seedlings with controlled temperature and humidity;adopting a double-vine creeping cultivation method;implementing integrated water and fertilizer management in the field with reasonable topdressing;improving fruit set through pruning,fruit thinning,and assisted pollination;and implementing integrated pest management.Key cultivation techniques for autumn potatoes include selecting the local Xiaohuangzhong variety,disinfecting and pre-sprouting the seed tubers,thoroughly cleaning the field and deep plowing before sowing without applying base fertilizer;sowing at a density of 5 000 to 5 500 seeds/667 m2;focusing on seedling control in field management,timely topdressing and irrigation,intertillage and hilling;and focusing on the control of early blight,late blight,and underground pests.This rotation model yields significant economic benefits(net income increased by 2 800 yuan/667 m2 compared to monocropped muskmelon),prominent ecological benefits(improved soil structure,efficient utilization of residual potassium from muskmelons,reduced soil-borne diseases and pesticide application),and good social benefits(increased employment opportunities,ensured local potato supply).This study provides a reference for crop rotation cultivation in relevant regions.