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目前显示的是 六月 19, 2018的博文

Dora Rootguard(trichoderma harzianum) Good effect on root growth

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Why does crop quality decline after continuous cropping?

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In some plants,stems and leaves appear scorching and shrinking,and some even die.Some pest structures also change.This is what the performance of continuous cropping obstacle in different crops. 


The reasons are generally the following aspects:
1.Continuous cropping causes symptoms of deficiency in soilField crops have a long reproductive cycle.The vegetable has a short growing period and a high multiple cropping index. However,whether the same crop or vegetable is grown on the same land for a long or short period,it will absorb more elements, and the element in the soil will be in short supply.Some will also lead to changes in the pH of the soil,and the availability of certain elements in the soil will also decrease.As a result, some cotton will have potassium deficiency,some cabbage will have calcium deficiency, and some will suffer from Zinc Magnesium deficiency.
2.Serious harm of pests and Pathogens in soilThe common diseases in continuous cropping fields are infectious diseases and …