Selection of nursery land for cultivation of orange rootstock seedlings with sugar

Nursery land should choose places with convenient transportation, good water supply and good power supply, which are slightly farther away from the orange orchard or separated by natural barriers, so as to reduce dangerous diseases and insect infections. It is required that the terrain is flat, the slope does not exceed 5 degrees, and there is no air and water pollution nearby. The soil should be sandy loam, loam and light loam with deep, slightly acidic, loose and fertile texture and less diseases and insect pests. The thickness of the soil layer is generally not less than 30cm, and the groundwater level is not more than 1m, pH 5.5, 7.5. The nursery should be well drained and irrigated in summer. do not choose the garden where bayberry has been planted to cultivate seedlings and continuous cropping in the nursery, and the newly opened land is the best.

1. Selection of nursery land in farmland

(1) in plain water network areas, it is necessary to avoid choosing places with low-lying terrain, poor drainage and heavy soil consolidation.

(2) Cold paddy fields and rotten paddy fields should be avoided in mountainous areas.

(3) as vegetables and potatoes, farmland with serious diseases, insect infections and weeds in the soil should also be avoided as nursery sites.

two。 Mountain nursery land should be selected in the middle and lower part of the hillside, agricultural sloping land or sparse woodland, shrub land, cutting land should be opened up as nursery land, and should be built into horizontal terraces. It is appropriate to choose the sunny southeast slope and southwest slope. The depression where the cold current converges, the mountain pass with serious wind damage, the dry and barren mountain top and the valley with insufficient sunlight are not suitable to be used as nurseries.