Planting method and time of non-shelf beans

The planting method of non-frame beans: after selecting and preparing the land, about 3000 tons of rotten organic fertilizer, 40 tons of superphosphate and 10 tons of potassium sulfate were applied per mu, and sown according to the plant spacing of 30-35 tons. Watering and fertilization should be carried out in the later stage, and 0.3% potassium dihydrogen phosphate can be sprayed to the leaves during flowering. Planting time: the sowing time is slightly different in each region, generally sowing from February to April in spring and from August to September in autumn.

I. planting methods

1. Soil treatment

The main results are as follows: (1) first of all, we should do a good job of land selection and preparation, because the growth period of unshelved beans is relatively short, so we should select high-quality varieties with early maturity, heat resistance, disease resistance, strong adaptability and intermediate or short-day response to photoperiod. And pod setting is more concentrated and pod setting rate is higher.

(2) rotten organic fertilizer 3000kg, superphosphate 40kg, potassium sulfate 10kg can be applied per mu, during which nitrogen fertilizer can not be applied too much, if the local soil is acidic, then a small amount of lime can be added to the soil.

2. Rational sowing

You can choose to use the new high fat film to mix seeds, which is beneficial to improve the germination rate of seeds, and then plan 130cm (bag groove) according to the width of the box, 2 rows of species, 30-35cm plant spacing, and 2-3 plants per hole for direct seeding.

3. Fertilizer and water management

The main results are as follows: (1) during the period of non-frame bean growth, reasonable watering and fertilization should be carried out according to the needs of the plant, and topdressing should grasp the principles of less application before flowering, more application after anthesis and re-application at the peak stage of pod setting.

(2) fertilization from light to thick, usually applied 4 times, when the summer weather is hot, spray an appropriate amount of water to ensure that the soil is in a moist state.

4. Florescence management

The main results are as follows: (1) the flower bud differentiation of unframed beans begins at the seedling stage, usually 20-25 days after sowing, but the flowering date is 35-40 days after sowing.

(2) flowering and podding will only occur when the local accumulated temperature reaches 700800C (860C to 1150 °C), and the flowering period is 12-19 days (25-44 days for vine species).

(3) Farmer's flowering essence of 1500 times liquid or gibberellin solution of 5-25 mg per liter should be sprayed on the leaf surface and stem top before flowering, which is helpful to promote flowering and increase pod formation.

(4) during flowering, 5-25 mg per liter of b-naphthylacetic acid or 0.3% potassium dihydrogen phosphate can be sprayed on the leaves to avoid the phenomenon of falling flowers and pods.

5. Timely harvest

The main results are as follows: (1) the young pods can be harvested about 10-15 days after flowering, but about 15-20 days when the temperature is low, when the pods change from flat to round, the color changes from dark green to light green, and the appearance is shiny.

(2) generally speaking, from sowing to harvesting, sowing in autumn is about 50-55 days, and spring sowing is about 55-65 days, and the yield per mu is about 1000kg.

Second, planting time

The main results are as follows: 1. the planting time of unshelved beans is the same as that of common beans, sowing from February to April in spring and from August to September in autumn.

2. The sowing date in Northeast China is generally delayed by 1-2 months, sowing from late April to mid-May, and sowing in April in most parts of Northwest and North China.

3. The seeds were sown in the northern plateau in early May, in East China half a month later, from late March to early April in East China, and from late February to early March in most parts of Central China and Southwest China, so the sowing time was different in each place.