Propagation, plantation and management technologies of monopidial bamboos

Presentation given by Wang Anguo,  29 August 2015, Huachen Hotel, Hangzhou, China

Aspects should be aware for propagation, plantation and management technologies of monopidial bamboos

  • The soil should be loose, fertile, thick, with good air dand water permeability. Sand soil is recommende, common red soil are aso suitable.
  • The location would better be convenient for transportation and improving soil. Areas around the farmyards can also be used if possible.Shoot producing bamboo prefers humidity and light, not wind. The bootom part of slopes between 5-15 degree are suitable for it and would best if there is water souce nearby.Other condition : Market, transportation and plantation are also supposed to be taken into consideration for site selection. For selling fresh shoot purpose, transportation is main factor.
  • Land preparaton for loosing soil, improving soil qualuity, increasing of soluble salts and effectivenes. Three kinds of land preparation : overall, strip, and lump ones. Land preparation affects planting quality. The application of different typesdepends on land situations. In the sloopy area less than 15 degrees overall land preparation should be adopted, between 15-25 degress strip land preparations greater. Step 1. Clearing and loosening soil. Step 2. Digging drainage ditches ; Drainage ditches should be built. The distance between ditches should be 10-20 cm.Step 3. Digging pits : Usually the palanting density is 1200-1500 plants per ha, the spacing is 2,5mx3m or 2mx3m. For high yielding plantation the planting density is 1500-2505 plants per hectare. The spacing can be of triangular or quincunx grid. Pits size is 60cmx40cmx40cm.
  • Planting bamboos : The pit should be wide and deep enough for the rhizome and root, pit bottom should be flat to make sure that no space left under roots. This is an important factor affecting planting survival rate, then fill the soil into the pit.
  • The rhizome should be 20-25 cm deep, 3-5 cm deeper than original host, neither too deep or too shallow. If too deep, the rhizomes and buds cannot get enough oxygen and nutrient and even decay if waterlevel is high.Press soil firmly : Cover the stump sith soil and press the soils firmly, then fill in the surface soil and civer with anothe r layerof loose soil making it higher than ground surface.
  • Irrigation : After planting bamboo, irrigation should be followed timely. It best o cover soil surface with straw to reduce water evaporation.The survived seedling should be transplanted tiely from the containers to the filed.
  • Weeding and loosening soil : This activity are able to solve them to prompt bamboo growing, each years weeding and loosening soil should be conducted 2-3 times. First time is shallow plow in mid pebruary, Second times is in may-june, 25 cm deep to promote rhizome extending. Third times is in september –otober when new rhizomes have come out. Do not injure rhizome or buds. Soils surrounding new rhizome should be plowed to improve their extension. Loosening can be done along with fertilizing.
  • Adequate fertilizing : with the increase of bamboo stocking, fertilizer amount should be increased accordingly, to improve bamboo survival rate and forests formation.Fertilizing usually is adopted twicw a year, imn May-june and august-september. The fertilizer can be scattered in the field directly, or solved in water for irrigation, the solution consistency should be thin. Various fertilizer can be used for new stand with frequent small amount . For growing seasons, active fertilizer is recommended.
  • Reasonable keeping shoots for new stems :  For new stand, the sapcing of selected shoots and mother stem should be big, in order to prove rhizome extension ability and forest formation. Stand protection measures : livestock should be keep out of the stand. The stem tips should be removed. Attention shpuld be paid to disease and pest control, aspecially to shoot borers and defoliators control.

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