Tomato planting problems
Not long ago, reporter and agronomist Zhang Baowen came to a tomato greenhouse in Changle County, Weifang City. At this time, the tomato seedlings had just been transplanted. Nevertheless, Mr. Zhang saw the problem at a glance, especially the soil. The surface was obviously reddish and very firm.
The soil is heavily compacted, and it is conceivable that tomatoes will not grow well. However, what is most confusing to the owner of the greenhouse, Liu Donghai, is why the soil turns red? These days he has been thinking about what went wrong.
Expert Zhang Baowen observed on the spot that this was due to red moss caused by improper fertilization and watering. "Red moss is the salt in the soil, which is metabolized after being poured in water." Zhang Baowen said.
Zhang Baowen introduced that most of the salt in the soil comes from fertilization. The nitrogen, phosphorus, and potassium in the fertilizer have accumulated in the soil for many years, and the salt has been precipitated through improper watering, so we saw the current situation. Red moss and other phenomena are a symptom of soil degradation. Improper watering has accelerated the appearance of the problem. In the final analysis, it is Liu Donghai's misunderstanding in fertilization.
Soil compaction and acidification are inseparable from improper fertilization. In a conversation with Liu Donghai, the reporter learned that he had used a lot of tomato fertilizer in a lot of places. "I have applied chicken dung, pig dung, beans, and compound fertilizer." Liu Donghai said.
Experts point out that if the animal manure such as chicken manure and pig manure are not thoroughly cooked, there will be many problems after being applied to the ground.
Long-term application of inferior or incompletely decomposed livestock and poultry feces will increase the burden on the soil. Over time, the problems of compaction, acidification and salinization will occur. In this way, the soil is not conducive to crop growth and will cause damage to the crop's root system.
Zhang Baowen suggested that the application of livestock and poultry manure should be fully decomposed and scientifically and rationally combined with fertilization.
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