Silage corn refers to the use of fresh corn stems and leaves as a feed for corn, characterized by rapid growth, can get more stem and leaf production in a short period of time. In order to solve the inconsistency in the development of dairy cattle in our county that requires a large amount of silage, the following technologies should be well-handed for silage corn cultivation:
First, use varieties. The Yam silage No.8, a silage corn variety with high plant height, strong resistance to fall, and high biomass yield, was selected.
Second, the appropriate sowing. According to the rising temperature in early spring and the harvest time of the previous crop, the winter-free fields should be planted on April 25-May 5.
Third, no-tillage live. No-till live broadcasting is implemented. The amount of mu for use is 3-4 kg. Digging nests are broadcast on demand and 5-6 pellets are planted. The base fertilizer is 1500-2000 kg of agricultural fertilizer, 25 kg of ammonium bicarbonate, 30-35 kg of phosphate fertilizer, and 8-10 kg of potassium fertilizer. Note that the base fertilizer is isolated from the seed and the seedlings are not burned.
Fourth, deep trench high box. Promptly open the "three ditch" and eliminate wet damage and waterlogging.
Fifth, increase nest increase strains. For silage corn to obtain higher biological yield, the planting density should be increased. Spring sowing maize should be 2.5-feet 1.2-1.3-feet or equal-row spacing 2.0-feet 1.7-1.8 ft., 2 oysters should be kept, and 3500-3600 per mu should be guaranteed.
Six, field management. 1, thinning, Dingmiao. When the corn leaves reach 3-4 leaves, they should be seeded with time. When they reach 4-6 visible leaves, the seedlings should be set in time, so that “four to four stayâ€, that is, to stay weak, to stay small, to go Staying sick and staying healthy, leaving miscellaneous to stay pure, seedlings in a timely manner to make up for lack of seedlings; 2, weeding and weeding. In the 6 - 7 leaves combined with top dressing for 2-3 times the cultivator weeding; 3, top dressing. Miaofei in the 3-4 when the acres of agricultural fertilizer 1000-1500 kg, urea 5-6 kg nest application. When the jointing fertilizer is used in 6-7 leaves, 1,000-1,500 kilograms of agricultural fertilizer and 15-20 kilograms of urea are used to dig nests. Attacking stalk manure before and after tasseling with corn urea 15-20 kg.
VII. Pest control. 1, the prevention and treatment of silkworm: First, sweet and sour vinegar trap adult: 6 copies of sugar, 3 copies of vinegar, white wine 1, 10 copies of water, 90% trichlorfene and mix thoroughly, or add appropriate amount of pesticide with kimchi water. The second is bait trapping larvae. The third is to use 90% trichlorfon 800 times solution or 50% phoxim 800 times solution for spraying in the first 3rd instar larvae stage; 2) to control the corn borer: use insecticidal double water in the 7-8 leaves of corn. The agent is watered and sprayed, and the large bell mouth period is treated with the insecticidal double-grain agent snack; 3. The corn borer: the best suitable period for the prevention and treatment of the corn borer is before and after the tasseling, and the mumus is used 70% water dispersible granules 1.4-1.9 g water 50 kg spray; 4, corn sheath blight, stalk rot: in corn tassels found in sheath blight, stalk rot, mu 20% Jinggangmycin WP 50 g Duishui 50 kg spray Control of sheath blight; mu 50% carbendazim powder 100 g watered 50 kg spray to prevent stalk rot.
Eight, appropriate harvest. The suitable harvesting time of silage corn is the wax ripening period.
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