不同渗灌深度对设施南瓜生长的影响

南瓜叶大、透气性差,设施栽培湿度大,容易发生病虫害,因此适宜采用节点式渗灌方式来浇水,但渗灌管的合理埋设深度和渗灌管管间距离尚无相关参考数据。本文以引进的3个南瓜新品种贝栗二号(绿皮黄瓤)、新红桔(红皮黄瓤)、黑帝(黑绿皮黄瓤)为试材,以甜栗南瓜为对照,管道埋没的深度设置为10、20、30 cm和传统的滴管方式(CK),分析了不同渗灌深度对南瓜栽培的影响;采用单垄单株栽培,地膜覆盖,留单蔓,进行立架栽培,吊蔓;其余管理按常规生产进行。结果发现,南瓜的根系一般在10~30 cm,因此深度设置为30 cm对于南瓜新品种的产量和品质是比较适宜的。在此基础上,通过综合性状分析,筛选出适合本地区设施种植的南瓜品种为黑帝,其节间距大,口感甜,品质好,产量较高,病虫害少,适合推广种植。

Effect of Different Infiltration Irrigation Depth on the Growth of Protected Pumpkin

Pumpkin leaves are large,air permeability is poor,greenhouse humidity is high,it is easy to cause diseases and insect pests,so node infiltration irrigation is suitable for watering,but the reasonable buried depth and distance between infiltration pipes are not supported by data.In this paper,three new pumpkin varieties,Beili No.2(green skin and yellow pulp),Xinhongju(red skin and yellow pulp),Heidi(black green skin and yellow pulp),were introduced as the test materials,Tianlipumpkin as the control,the buried depth of the pipeline was set at 10,20,30 cm and the traditional dropper way as CK,in order to study the influence of different infiltration irrigation depth on pumpkin cultivation.The experiment adopted single ridge and single plant cultivation,covered with plastic film,left single vine,carried out vertical frame cultivation and hanging vine;other management was carried out according to routine production.The results showed that the root system of pumpkin was generally 10-30 cm,and the depth of 30 cm was suitable for the yield and quality of new pumpkin varieties.On this basis,through the comprehensive character analysis,the pumpkin variety suitable for greenhouse planting in this region wasHeidi,with large internode distance,the sweetest taste,good quality,high yield,less pests and diseases,which was suitable for promotion in this region.