I. Technical summary
Integrated hydro-fertilizer technologies are new technologies that, by means of pressure systems (or natural terrain deviations), conserve soluble solids or liquid fertilizers, depending on soil nutrient content and crop fertilisation patterns and characteristics, with irrigated water, by means of controlled pipe systems that provide regular, quantitative water, fertilizer and save labour。
Ii. Preparation for broadcasting
1. Land selection
Soils should be selected for well-deep, medium fertility and easily drained beach water。
2. Flow bottom fertilisation to protect against underground pests。
High-quality refined organic fertilizer of 5,000 kg per acre; combined with a deep conversion of arable land, 1. 5 kg per acre of organic octaphos-methyl emulsion is effective in combating subterranean pests such as thorium and thorium. A combination of 10 kg of urea per acre, 30 kg of ammonium dimethyl, 15 kg of potassium sulphate and 40 kg of bio-organizing fertilizer in the field。
3 - the whole place
To meet the five-word criterion of flat, loose, broken, clean and complete
4. Feed preparation
(1) varieties selection: dripping maize chooses a rich, reversible mix of good mid- and late-cut maize。
(2) seed quality. Seeds with a purity of more than 95 per cent, a purity of 98 per cent, a growth rate of not less than 90 per cent and water content of less than 13 per cent were selected。
Iii. Required institution
The seeding can begin when the 5 cm earth layer temperature in the spring is stabilized for three consecutive days at 10-12°c (25 april). Precision dots; acreages of 2 to 2. 5 kg; wide and narrow seeding; sowing depths of 3 to 4 cm; and requests to be aired, leaving 3800 to 4500 acres。
V. Strengthening field management
1. Diffusion seedlings
When a seedling is found to be blocked by a thin membrane, it should be released immediately, either by 10 a. M. Or after 4 p. M. Or in the dark。
2 and time seedlings
When a seedling grows to three-leave-time seedlings, to five-six-leave seedlings, and when it is discovered that it is missing, it can be filled by having two plants in its neighbour。
Management of seedlings to the bottom
1. Post-relay management is timely in “specify, replant, install hair pipes” to ensure whole seedlings; early drops of seed water (1-2 days after broadcast) are about 20 m3 per acre。
Seeding. 3 to 4 leaf-based seedlings, which are required by design。
The three and eight leaves are fertilized. General urea 2. 5 kg/acre, phosphorus, potassium fat 2 kg/acre. The drop volume is about 15 m3。
Vii. Management of the phase from the top to the top
This is a loudspeaker period, which is the key to the management of water fertilizers and a time of many agglomerations, ears and grains. The image of the fruitful seedlings is balanced development of the field community, growing alone, strong, thick and large, thick tubing, thick leaves, green leaves, and well-developed females and males. Management measures: mainly dripping, fattening。
Viii. Management of the maturation period from male to maturation
Cropland corn looks like a well-organized group, a single strong, large speckling, green-planted, and normally slow to fall yellow at a later stage. The management measure for this period is to keep the water fertilizers green and the fields wet to ensure that the soil is not dry. Pyramid drops, 20 m3 acre drops; 7. 5 kg of urea and 3 kg/acre of potassium dihydrophosphate。
Ix. Quite access
Corn buns are dried and most of the leaves turn yellow and should be harvested in time。
