Four-season cultivation of peas

1. Seed selection

To be able to grow peas all seasons, the selection of varieties is very important. After years of experimentation by experts, the two varieties Zhongzhong No. 6 and Zhongya No. 4 are now selected, supplemented by greenhouses and other facilities for four-season cultivation of pea.

Second, sowing in time

According to experimental demonstration and production practice, in the lower reaches of the Yangtze River, the relationship between the sowing date and the harvest time is as follows: autumn shaded net cultivation in early August-until the end of August-October 1st, autumn open field cultivation in late August-mid-September-October Mid-term, winter film greenhouse cultivation in October-New Year's Day in February of the following year, winter open field cultivation in November-around January 1 of the following year, spring open field cultivation in February-mid-April May, summer open field cultivation in May Early-late May-late June, summer shaded shed cultivation mid May-mid June-early July.

3. Reasonable dense planting

Zhongpi No. 4 and No. 6 are dwarf varieties with a plant height of 40-50 cm, which should be properly densely planted. In spring, summer and autumn, the row spacing is 35cm, the hole spacing is 10cm, 3 grains per hole, and the seed volume is about 10kg for 667 square meters. The winter sowing line spacing is 40cm, the hole spacing is 15cm, 3 grains per hole, and the seed quantity is about 7kg for 667 square meters.

4. Fertilizer and Water Management

Choose fields with good soil fertility, convenient irrigation and drainage, and sufficient light for planting. 667 square meters of nitrogen, phosphorus, potassium three-element compound fertilizer 30--40kg as a base fertilizer, and apply a certain amount of organic fertilizer. In the flower pod stage, 10 kg of urea or 1000 kg of human and animal fertilizers are applied to 667 square meters to promote pod formation.

In the later growth period, according to the growth situation, a mixture of 0.5% urea solution and 0.2% potassium dihydrogen phosphate can also be used for extra-root fertilization. Water should be promptly watered during drought, especially during the flowering and podding stage, the plants are particularly sensitive to water, and water should be added in time. In addition, the peas cultivated in summer should pay more attention to the timely supply of water, which can not only meet the water demand of plant growth and development, but also effectively reduce the surface temperature and promote its normal growth.

5. Timely application of protection facilities

1. Among the anti-freezing measures, the anti-freezing ability of Pea No. 4 and No. 6 is strong at the seedling stage, but the anti-freeze ability drops sharply after flowering, and the pods need to have a certain temperature during the long-grain filling stage. Cover the plastic film and do the cold and heat insulation work. Before the short-term strong cold current comes, it should be temporarily covered with cold protection materials to protect the young green pods from freezing damage.

2. Sunshade cooling measures Summer cultivation is due to high temperature, fast growth, short growth period, and small and small pods. Therefore, it is appropriate to cover the sunshade net in time to effectively reduce direct sunlight, which can reduce air temperature and ground temperature, increase soil humidity, and promote The growth of individual plants increases yield.

Six, timely harvest

Due to the different growing seasons and cultivation methods, the number of days after flowering to picking green pods is very different. Due to the high temperature in summer, the growth rate of pods is fast, and the flowering to harvesting is only 20 days. In winter cultivation, the flowering to harvesting needs More than 30 days, therefore, we must flexibly grasp the harvest date according to the purpose of the pod and the strength of the pod. The pods that are mainly green beans are fully swelled, the beans are 70% full, and the pods are harvested just before the color change begins.

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