Soil is usually the most available growing medium and plants normally grow in it. It provides anchorage, nutrients, air, water, etc. for successful plant growth. Modification of a soil an alternate growing medium tends to be expensive. However, soils do pose serious limitations for plant growth, at times. Presence of disease causing organisms and nematodes, unsuitable soil reaction, unfavourable soil compaction, poor drainage, degradation due to erosion, etc. are some of them.
Further, continuous cultivation of crops has resulted in poor soil fertility, which in turn has reduced the opportunities for natural soil fertility build up by microbes. This situation has lead to poor yield and quality.
Further, continuous cultivation of crops has resulted in poor soil fertility, which in turn has reduced the opportunities for natural soil fertility build up by microbes. This situation has lead to poor yield and quality.
In addition, conventional crop growing in soil (Open Field Agriculture) is difficult as it involves large space, lot of labour and large volume of water. And in some places like metropolitan areas, soil is not available for crop growing. Another serious problem experienced since of late is the dif ficulty to hire labour for conventional open field agriculture.
[EBOOK] HYDROPONICS (Department of Agriculture, Ministry of Agriculture), COPY RIGHT BY ALBERT
CLICK HERE TO DOWNLOAD THIS EBOOK
Keyword: ebook, giáo trình, hydroponics, aquaponics, Department of Agriculture, Ministry of Agriculture, soil-less culture, thuỷ canh, trồng rau thuỷ canh, trồng cây thuỷ canh, trồng cây trong dung dịch, trồng cây không cần đất
Không có nhận xét nào:
Đăng nhận xét
levantaihg@gmail.com