How much is a jin of kidney beans now? Plus scientific fertilization techniques
Kidney bean is an edible legume plant. Its scientific name is common bean, commonly known as the second-season bean or four-season bean. The tender pods or seeds can be used as fresh vegetables, and can also be processed into cans, pickled, frozen, and dried. So how much is a jin of kidney beans now? What fertilizer is best? What scientific fertilization techniques are there?
How much is a jin of kidney beans now?
The following are compiled prices, for reference only.
Hubei Wuhan Baishazhou Agricultural and Sideline Products Grand Market Co., Ltd. - white kidney bean price: 11.00 yuan/kg
Beijing Dayang Road Agricultural and Sideline Products Wholesale Market - white kidney bean price: 12.00 yuan/kg
Beijing Shunxin Shimen Agricultural and Sideline Products Wholesale Market - white kidney bean price: 17.00 yuan/kg
On April 11, 2018, the average price of white kidney beans was as follows: 11.5 yuan/kg (flat)
What fertilizer is best for kidney beans?
Apply about 1500 kg of farmyard manure per mu, and 40-50 kg of compound fertilizer (30 kg of phosphate fertilizer, 10-15 kg of potash fertilizer) as base fertilizer. For topdressing, appropriately apply compound fertilizer twice during the early flowering stage and the pod-setting stage, 10-15 kg per mu each time.
Appendix: What scientific fertilization techniques are there for kidney beans?
(1) Fertilizer requirements
After kidney beans emerge, the root system begins to absorb various nutrient elements from the soil. As the plant grows, the amount of nutrient absorption gradually increases and is stored in the stems and leaves, reaching its maximum at flowering and fruiting. When the pods enter the elongation stage, the nutrients stored in the stems and leaves are rapidly transported to the pods to meet their growth needs. The element that kidney beans absorb most from the soil is potassium, followed by nitrogen, phosphorus, calcium, boron, etc. Although the plant requires a relatively large amount of nitrogen, after root nodules form, rhizobia can fix nitrogen from the air to meet growth needs, so a large amount of nitrogen fertilizer is not needed in production.
(2) Fertilization techniques
Kidney beans have a moderate fertilizer requirement. According to their requirements, the reasonable fertilization techniques are as follows:
1. Fertilization principles. In view of problems in kidney bean production such as most farmers not having a sufficient understanding of scientific fertilization, insufficient application of organic fertilizer, applying whatever fertilizer is available, and unreasonable fertilizer ratios, the following fertilization principles are proposed.
(1) Base fertilizer as the main part, topdressing as a supplement
(2) Combine organic fertilizer and inorganic fertilizer
(3) Increase the application of organic fertilizer
(4) Reasonable ratio of nitrogen, phosphorus, and potassium
(5) Supplement trace elements such as molybdenum, zinc, and boron
2. Fertilization recommendations
According to the “3414” fertilizer efficiency test on kidney beans and the results of large-scale demonstration and extension, the fertilization recommendations are as follows:
(1) For a target yield of 2500-3000 kg/hm2, apply 35,000-40,000 kg of organic fertilizer, 30-40 kg of nitrogen fertilizer (N), 75-85 kg of phosphate fertilizer (P2O5), 40-50 kg of potash fertilizer (K2O), and an appropriate amount of trace fertilizer.
(2) For a target yield of 2000-2500 kg/hm2, apply 30,000-35,000 kg of organic fertilizer, 20-30 kg of nitrogen fertilizer (N), 65-75 kg of phosphate fertilizer (P2O5), 30-40 kg of potash fertilizer (K2O), and an appropriate amount of trace fertilizer.
Special note: First, if compound (mixed) fertilizer is applied, only potassium sulfate type compound (mixed) fertilizer can be used, because kidney beans have poor tolerance to chloride ions, and applying ordinary compound (mixed) fertilizer affects growth; second, potash fertilizer should not be applied in large amounts, otherwise the seeds are prone to hardening, affecting eating quality and commodity value.
3. Fertilization methods. According to the characteristics of different fertilizers and the fertilizer requirements of kidney beans, different fertilizers have different application methods:
(1) Organic fertilizer is applied as base fertilizer concentrated in the planting holes, and can also be used as covering-hole fertilizer.
(2) Nitrogen fertilizer: when soil fertility is moderate or above, it is not applied as seed fertilizer, but all as topdressing, which can be appropriately applied at the bud stage and pod-setting stage.
(3) Phosphate fertilizer is applied concentrated in the planting holes as seed fertilizer.
(4) 50% of potash fertilizer is applied as seed fertilizer, and 50% is applied as topdressing at the bud stage.
(5) Trace fertilizer: from the early flowering stage to the pod-setting stage, spray the leaves with 0.2-0.3% potassium dihydrogen phosphate plus 0.2% borax solution, continuously spraying 2-3 times at intervals of 7-10 days. Molybdenum fertilizer is used as seed fertilizer and applied by seed dressing.