The requirements of the latest knife bean on the growth environment
Knife bean is a winding herbaceous leguminous vegetable, which generally eats young pods and seeds. Distributed in the south of the Yangtze River, planted in the subtropics and tropics. It can also be used as green manure and livestock feed. Planting knife bean has strict environmental requirements and certain restrictions, generally, it has its own requirements for climate, temperature, moisture, fertilizer nutrition, light and soil, which can grow well in a suitable environment.
1. Climate
Only in tropical and subtropical climatic conditions can the growth process be completed, blossom and bear pods, grow normally, and there is no germination in cold areas. even if they sprout, they do not grow fully, or fall flowers and pods. Planting in subtropical areas should also pay attention to the influence of late spring cold and appropriate late sowing.
2. Temperature and humidity
Temperature-loving and heat-resistant, seeds germinate above 18 degrees, germination of long leaves should be between 18 and 28 degrees, flowering temperature should be between 25 and 30 degrees, pod setting temperature should not be lower than 20 degrees, and should not exceed 35 degrees. The soil moisture was maintained at about 70% before unearthed at the seed stage and at the seedling stage, and decreased to 40% at the flowering stage, and 50% at the fruiting period.
3. Fertilizer nutrition
Do not water before flowering, should be ploughed once, avoid falling flowers, Ye Wang long-term topdressing once, apply 60 jin compound fertilizer per mu, mainly nitrogen fertilizer. After podding and then topdressing, 30 jin of calcium superphosphate and 20 jin of potassium dihydrogen phosphate were applied per mu, with less nitrogen fertilizer. During the peak period of pod setting, two times of fertilizer should be sprayed, and at the same time, the heart should be picked and the branches should be thinned, and the nutrition should be concentrated on pod setting, so that compound fertilizer can be sprayed once in the later stage to prolong the pod setting time.
4. Lighting
Knife beans like strong light, to accept a long time of light, especially in the flowering and podding period need a lot of light, lack of light will drop flowers and pods. Generally, it can be satisfied when the climate is suitable, but the planting should not be too dense, it is necessary to maintain a suitable row spacing, be able to fully accept the light, and improve the light and utilization rate.
5. Soil
Planting soil should have good water and fertilizer conservation, high growth temperature and strong light, rapid transpiration, and water conservation is very important. it grows like fertilizer, and fertility is the best soil, which can not be solidified and restrict root growth to absorb water and nutrients. It is easy to rett the roots after rain. It cannot be saline-alkali land, it is easy to die and plant dead seedlings. Can not be low-lying land, respiratory growth is easy to be abnormal.
Planting knife beans requires that the environment should be adjusted and improved according to its needs, to achieve the best growth environment, the growth will be better, although extensive management, casual planting can survive, but artificial planting is to provide the best growth conditions. I don't know what you think, but you can refer to your own understanding and adjustment.
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