The latest course of fertilization techniques for High yield of Vicia faba

Broad bean, also known as Luohan beans, Hu beans, orchid beans, it is grain, vegetables, feed and green fertilizer crops, but also many friends like to eat food, or an important legume plant in the south, with high economic value. In order to achieve high yield in planting, fertilization is essential, so how to fertilize broad bean? Let's take a look. 、

1. Characteristics of fertilizer requirement

Broad bean needs a large amount of fertilizer plants, according to data, for every 100 kg of broad bean seed, it needs to consume 7-8 kg of pure nitrogen, 2 kg of phosphorus pentoxide and 5 kg of potassium oxide. At the same time, its demand for all kinds of fertility is also different in each growth period. It absorbs less in the early growth stage, but absorbs more nutrients in the flower and pod stage, and the nutrients absorbed in the flower and pod stage account for about 50% of the whole growing period. If the supply of phosphorus and potassium fertilizer is insufficient at this time, it will affect the late yield, so fertilization is very important if broad bean cultivation wants to get high yield.

2. Apply mixed seed fertilizer

Generally speaking, seed fertilizer should be applied once before sowing, and generally 2 grams of ammonium molybdate per kilogram of seeds should be used to make the seeds sprout as soon as possible, make the roots and nodules of broad bean grow and develop, accelerate the growth of seedlings, help to cultivate strong seedlings, improve cold resistance and increase production.

3. Apply sufficient base fertilizer

It is necessary to apply sufficient base fertilizer when sowing, and the base fertilizer provides nutrition supply for the whole growth period of broad bean, and its application amount accounts for more than 80% of the total fertilizer application. When 30-50 kg of calcium phosphate and 7-15 kg of potassium sulfate are applied per mu, the yield can be increased by 20% when the base fertilizer is concentrated on the root of broad bean, and 1000-2000 kg of mature organic fertilizer or farm fertilizer can be used as base fertilizer, which can be combined with ploughing. Mixing it evenly with soil can increase microbial activity, improve soil fertility, and increase yield.

4. Topdressing in time

The stage of topdressing is mainly seedling stage, branching stage and flower and pod stage. Nitrogen fertilizer is applied at seedling stage, 6-8 kg ammonium bicarbonate per mu or 2-3 kg urea per mu, mixed with water, so as not to burn the roots of seedlings with high fertilizer concentration. when 3-5 true leaves are grown, fertilization at seedling stage can make the plant grow early and promote multiple branches. When the plant begins to branch, 8-10 kg urea per mu and 8-10 kg ammonium bicarbonate per mu at flowering and pod stage should also be irrigated with water to make the plant blossom and bear pods and increase yield.

5. Extra-root fertilization

In addition to topdressing, the plant also needs to be fertilized outside the root, which is usually foliar fertilizer spraying, spraying 1% urea solution and 0.2% boric acid solution at the flowering stage, which can prolong the function of the leaves and make the photosynthesis of the plants synthesize nutrients normally, so as to prevent the plants from premature senescence due to lack of nutrition. Spraying 1% urea solution and 0.2% dihydrogen phosphate dissolved oxygen at one time in Zhuangli can achieve an obvious effect of increasing production.

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