Fertilization techniques of Taro

Taro is a perennial plant with few root hairs and weak fertility absorption, but sufficient fertilizer is needed for its growth, so in addition to selecting fertile and loose soil with strong water and fertility conservation, it is also very important to master fertilization techniques. So how to fertilize taro? Let's take a look.

1. Fertilization period

During the growth of taro, the greater demand for fertility is mainly in the seedling stage, stem expansion stage and mature stage. The seedling stage includes the process from seed stem germination to the early stage of tuber growth, when the fertilization motion is to spray foliar fertilizer to break the seed dormancy period, make it germinate and grow, and plant. On the other hand, the tuber growth period is the expansion period, which usually lasts for 45 days, and 80% of the yield is formed during this period, so a large amount of fertilizer is needed at this time, and fertilizer should be applied once, combined with foliar fertilization. The mature stage needs less fertility. To stop applying foliar fertilizer, the dormancy period can be as long as 4 months.

2. Base fertilizer

The root system of taro is fleshy fibrous root, and its extensibility is weak, so it likes the deep, loose and fertile soil. It is necessary to turn the soil before planting to make the soil loose and permeable, and to apply sufficient base fertilizer during soil preparation to maintain the continuous supply of soil fertility. General application of organic fertilizer or compost per mu 1000-1500 kg, in the mix of 100kg-200kg compound fertilizer, trench application, the ditch depth of 10-15cm.

3. Topdressing

Taro has a long growth cycle and needs a large amount of fertilizer, so after applying enough base fertilizer, it is necessary to apply fertilizer many times to ensure its demand. the main fertilizer is to promote seedling, tiller, taro, sun taro and strong taro.

Fertilizer for promoting seedlings: when the seedlings grow 3-4 true leaves, when combined with ploughing and weeding, the absorption of fertility is weak, so the construction uses thin manure and urine fertilizer, generally applying 40% manure and urine fertilizer 500 kg per mu. In the mix of compound fertilizer 4 kg and urea 10 kg, drenched after fertilization to reduce fertility concentration.

Tillering fertilizer: apply tiller fertilizer in the middle and last ten days of April, apply peanut bran 50 kg per mu, pig and cow manure 500 kg per mu, shallow furrow application, cover the soil in time after fertilization, and flatten the shallow trench after the tillering of the plant is over.

Taro fertilizer: taro fertilizer was applied at the beginning of tuber expansion in late May. Peanut bran 50 kg and human and animal manure 500 kg per mu were applied at a distance from the planting hole.

Sun taro fertilizer: sun taro fertilizer was applied in late June, because the small taro that occurred at this time was called Sun taro. This time, 500 kg of manure and urine fertilizer was applied per mu.

Strong taro fertilizer: when some taro leaves begin to turn yellow in late July, fertilizer and water should be controlled to avoid the continuous growth of new leaves, affecting the maturity of the corm and the accumulation of nutrients. Generally, 50 kg of peanut bran and 10 kg of compound fertilizer are applied per mu.

The above is the fertilization technology of taro. I hope it can help you. If you want to know more about taro planting, please follow us.