1, PengShi soil humidity is big, high temperature, moisture evaporation is big, with the moisture evaporation, underground part salt was taken to the soil surface, causing the accumulation of the salts in the soil surface.
2, because the season vegetables cultivation, films covered time is long, PengShi soil not wash the shower of rain, soil salinization phenomenon, and severe, when the soil drought, have obvious florescence.
3, continuous cultivation PengShi, because of the large fertilizer rate, the rest of the fertilizer in several years of accumulation, especially human excrement, YaFen, pig, chicken manure, fertilizer, etc., in the absence of rain wash the shower, salt injury is easy to occur.
How to prevent the soil salt injury?
1, reasonable fertilization, don't be too much at a time, when fertilizer to small amounts of many times.At the same time reduce the use of chlorine fertilizer.
2, reasonable water, timely watering when soil drought, salt and salt leaching.For soil soil salt content is higher, in front of the vegetable planting, can advance first pouring a water, covered soil.
3, variety selection, for high salty soil, can choose a few more salt resistant varieties.
