First, the way of interplanting
There are two kinds of interplanting methods: 1:1 and 1:2, which can be determined according to the size of the watermelon plant. The distance between watermelon plants is less than 25 cm, which is 2:1, that is, two holes of watermelon, one peanut, and about 500 holes per 667 square meters. The plant spacing should be more than 25 cm. It should be 1:1 planting method, that is, the number of watermelon and peanut holes is equal, about 1000 holes per 667 square meters. The planting position of peanuts is on the film of 10-15 cm behind the ridge of the two holes.
Second, the variety selection
Early-maturing varieties with a growth period of 120-130 days were selected, and the local four-grain red and Luhua No. 9 were the main varieties, and Luhua No. 8 was the matching variety. In order to promote the germination and emergence of seeds, the seeds with full grain and bright seed coats are selected about 10 days before sowing. After 2 to 3 days of varnishing, the shells are peeled and the seeds are selected for seeding. Seeding with carbendazim WP before planting, the dosage is 0.5% of the seed amount, to prevent stem rot in the seedling stage, etc., two seeds per hole, about 1 kg per 667 square meters of seed.
Third, increase the base fertilizer
On the basis of conventional fertilization of watermelon, 5 kg of nitrogen and phosphate fertilizers are added.
Fourth, seeding technology
From late April to early May, peanuts and watermelons are planted at the same time. First, watermelons are planted, and then peanuts are planted. When seeding, the holes are drilled with a perforated rod. The hole depth is 3 to 4 cm, the pore diameter is 4 cm, and 2 seeds per hole are flat. Placed at the bottom of the hole, randomly pick up the wet soil cover after sowing, cover the small mound with the ridge surface 3~4 cm higher than the ridge surface to protect the film, 10~15 days after sowing, when the peanuts emerge, the seedlings will be The surrounding soil is smashed, revealing the fertile cotyledons, in order to promote the first pair of side branches to grow early and grow fast, and when the mound is cleared, the seedlings are replanted.
V. Field management
In the early stage of symbiosis between watermelon and peanut, the tube was mainly watermelon, and in August of the symbiotic period, the peanut was in the pod stage. In this period, the field tube of peanut was the main, and the main field management measures were: 1 pressure vine. In mid-July, the peanuts entered the lower needle period, and the half-iron bauxite was pressed in the middle of the peanut stems, causing the peanut stems to fall to the ground. The middle and upper fruit needles are inserted into the soil as soon as possible, increasing the number of results. 2 to prevent leaf spot disease. From mid-June to mid-August, we used carbendazim and anti-cyanin to control leaf diseases such as leaf spot and rust, and sprayed foliar fertilizer to promote growth. 3 pest control. Spray phoxim or dimethoate to control aphids to prevent the spread of viral diseases. In the middle and late June, the buds were irrigated with phoxim to prevent umbilical sputum, and in July, the genus was killed by the enemy to kill the cotton bollworm. Yin water. After the watermelon is collected, it is refilled with water for 1 or 2 times, each time 30 to 40 cubic meters per 667 square meters.
Sixth, harvest
From the end of August to the beginning of September, the flowers will be harvested and the peanuts will be harvested in mid-September.
7. Economic benefits
Generally, 667 square meters of peanuts produce about 60 kilograms, 667 square meters of income is 150-180 yuan, the cost is about 60 yuan, and the net income per 667 square meters is 80-100 yuan. The watermelon and peanut intercropping not only utilizes the idle land after the melon, but also improves the soil fertility.
(Wai Dan)
Ningbo Kyson Cool Electronic Technology Co., Ltd. , https://www.kysonrefrigeration.com