Summary of the invention
Not in place for present stage to gold and silver grass research, the present invention aims to provide a kind of cultivation method of gold and silver grass, is to administer stony desertification, build ecotope, shakes off poverty and sets out on the road to prosperity, developing animal husbandry provides the important channel of a sustainable development.
To achieve these goals, the present invention is by the following technical solutions:
Cultivation step of the present invention comprises: 1, wholely, ploughed and do furrow in the soil of fertile soil, ditch begins to rehearse; 2, grow seedlings, select the good soil of fertility, deep plough, cut weeds, do furrow, desinsection, sowing; 3, fertilising, take high nitrogen fertilizer as main; 4, transplant, 5, field management, to cut weeds in good time, intertillage is loosened the soil, and keeps rich water sufficient, toothing; 6, crop rotation, plants or crop rotation between carrying out with the gold and silver grass after pulse family or other gramineous plantses and domestication; 7, over wintering, realizes by kind of the method that hide in stem hole, booth is protected root and simple and easy conservation.
Beneficial effect of the present invention:
Gold and silver grass vitality of the present invention is strong, easily breeding, well developed root system, drought-enduring, waterlogging, impoverishment tolerant, vegetable protein is up to 8.4%, raw fiber is low, mouthfeel is good, it is the animal feed of the high nutrition of high-quality, life-span is long, survival rate is high, plant and once can gather in continuously more than 20 year, output and can gathering in for 1 year 10 times, formation speed is fast, plantation just can obtain economic benefit then, root system has adsorption and dissociation heavy metal, the effect of organic contamination, and can in soil, produce complicated physical and chemical processes, rich collected manure usefulness power, plantation is simple, can be directly used in animal feed, be conducive to develop animal husbandry, can make bio-organic fertilizer, improve the ecological environment, improvement soil, conserve water and soil, greening sand prevention, can produce biomass carbon, gas, wet goods renewable energy resources, can purified water source.Improve water source quality, strengthen fertility, shake off poverty and set out on the road to prosperity, create more jobs.
The specific embodiment of the present invention:
The cultivation step of gold and silver grass comprises:
1, wholely---must deep plough, 30 centimetres of general tilling depth; Furrow are done in arable land, and furrow length varies in different localities, and furrow are wide 2 meters to 4 meters; The whole ground of hack; Ditch begins to rehearse.
2, grow seedlings---require nursery soil fertility better, the convenient row of filling, deep ploughing, removes weeds, and meticulous whole ground, does furrow, and furrow length is made by oneself, wide 1 meter to 1.5 meters; Trench digging; Execute insecticide control soil insect and sting food kind of stem tender shoots, for obtaining early seedling, can, in front and back sowing mid-March, hut be after planting set and with film, cover, and keep soil moisture, to guarantee full stand; The temperature in seedbed is controlled at 20~25 ℃, when growth of seedling goes out 3~4 true leaves, can use chemical fertilizer 1 time, executes 2~3 kg urea for every mu; Intertillage after fertilising, is buried in the earth ,Ru Yu seedbed arid by chemical fertilizer, should irrigate; During growth of seedling to 6~8 slice true leaves, can transplant the seedling in ,Mei Mu seedbed and can plant 30~40Mu soil.
3, fertilising---gold and silver grass is to need fertile more herbage, only, the in the situation that of high nitrogen fertilizer, just can give full play to its productive potential.Experiment shows, on the soil of better-than-average fertility, uses purity nitrogen (chemical fertilizer) more than 20 kilograms for every mu, or fertilizer (barnyard manure), more than 1000 kilograms, adds appropriate chemical fertilizer and topdresses, and could obtain larger effect of increasing production.Using of fertilizer, makes base manure mainly with fertilizer, is topdressing and is using, to promote the growth of aftergrass with chemical fertilizer gradation during cradling; At soil, lack the area of phosphorus, use 15~20 kilograms of superphosphate, as base manure, use for every mu; Dressing fertilizer not only can improve output, and can improve the nutritional quality of herbage, and along with the increase of fertilizing amount, the content of plant crude protein is corresponding raising also, and therefore, after cradling, topdress is particular importance at every turn.Topdress each every mu and use 15 kilo sulfuric acid ammoniums, after using, will intertill, fertilizer is buried in the earth; Gold and silver grass has certain susceptibility to zinc, during soil zinc deficiency, usually occurs that blade turns white, chlorosis between the lighter's leaf, the whole chlorosis of severe one blade so that dead, find this situation, available 0.05%~0.1% solution of zinc sulfate, every spray in 7~10 days 1 time, connects and sprays 2~3 times.
4, transplant---early plant, be an important ring that obtains high yield in good time, and temperature is basicly stable can transplant at 12 ℃; 30 centimetres of X60 centimetre of seeding row spacing, plant 3000 strain left and right for every mu.
5, field management---when gold and silver grass has just moved into field, because temperature is not high, grow slower, weeds are invaded soil very soon, and therefore early stage weeding is very important, and along with temperature gos up, the growth of gold and silver grass is accelerated, Feng Hanghou, and weeds are suppressed; After alive, will intertill and loosen the soil in time, keep rich water sufficient, cradle, cradling rear stubble height be 15~18 centimetres, after cradling, intertill in conjunction with fertilising at every turn.
The vegetative period of 6, crop rotation---gold and silver grass is similar to spring and summer corn, and just growth utilizes the time longer than corn, is the trophic structure of balanced feed, between carrying out, plants or crop rotation with the gold and silver grass after pulse family or other gramineous plantses and domestication.
7, over wintering---can be divided into three kinds of modes: 1. plant stem hole and hide: method is identical with sugarcane conservation, in severe winter, arrive the eve, growth 90 days above stalwartnesses, the full kind stems of lateral bud are cut down and removed after blade and the tender tip, be bundled into wisp and cheat Tibetan, 15~20 of every bundles; 2. booth is protected root, according to the width of booth, digs the heatable adobe sleeping platform that 1~2 degree of depth is 50~60 centimetres of left and right, before early frost arrives, plant is cradled to 15~18 centimetres of toothings, then root has been dug, intensive being emitted in preprepared hole, tamps, steps on tightly with fine earth Jiang Genjian space, then waters, heavy real soil, canopy temperature remains on 10 ℃ of left and right, and the seedling of so neither can freezing to death can suppress again growth, can also avoid the nutrient of too much consumption self, be conducive to improve breeding in spring; 3. simple and easy conservation, selects larger the digging pit to tailo of the gradient, and the same booth of cultivation management technology, after kind stem buries, covers straw screen or mat above again.
8, root or seedling through over wintering, when spring temperature goes back up to more than 10 ℃, from protecting, shift out, land for growing field crops breeding again, seed root propagation is after kind of a root is tripped out, the strip off of tillering, keep 1-2 transplantation of seedlings, propagation of seed stock is to take out the kind stem that hide in hole, select not go rotten, kind stem or sections that lateral bud is full, every section one joint, carry out cuttage, with a sections of a joint, the bury cuttage of 3 centimetres of joint, growing 70 days above stipes also can cottage propagation, in the situation that soil moisture is suitable, within after cuttage 7~10 days, take root, seedling, at this moment want timely intertill and clean tillage, during arid, to suitably irrigate.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also change and revise above-mentioned embodiment.Therefore, the present invention is not limited to embodiment disclosed and described above, to modifications and changes more of the present invention, also should fall in the protection domain of claim of the present invention.In addition,, although used some specific terms in this specification, these terms just for convenience of description, do not form any restriction to the present invention.