Soil Productivity Optimization Model

[Kikis]

Soil ProductivityOptimization Model from Entisols Soil after Demolition of Parent Materials and Giving of CompostingWeeds

 

 

 

This study aimed toincrease productivity Entisol soil in Pangkep (The one of Regency in SouthSulawesi Province) area to be planted soybean crops. In general, this studyconducted in six stages, namely:

 

1. The process ofland survey and identify locations that are categorized as having type Entisolssoil. Include identification of factorsof climate, topography, landscape, soil chemical and physical conditions on theground Entisols as initial data.

 

2.Observations of physical and chemical soil data after treatment demolition andsoil organic matter.

 

3.Testing continued with the planting of crops will be observed the growth andproduction.

 

4. Provide recommendations on how toEntisols soil management based on the results of experiments cond

 

 

 

1. Background

 

Entisols soil Pangkepnumerous in South Sulawesi Province, the spread includes dry climates withrainfall of less than 1500 mm / year .. Land Entisols numerous in thehighlands, and the basic areas mountain slopes. These lands belong to marginaland its use is not optimal due to the physical condition of soil that is notpossible for the purpose of crop cultivation. Entisols soil tend not to developa deep solum due to climatic factors in this low rainfall in which the processof water infiltration and leaching of water into the soil solum less soinhibited the formation of soil horizons. These conditions cause the soil andshallow Entisols have solum solum only has A and C. Solum A or layers ofvarying thickness (10-30 cm) and is dominated by the mineral quartz sand andsoil, while the solum C is dominated by parent rock mold that has not beenperfect, and difficult to be penetrated by water and plant roots. Theseconditions become limiting factors to crop cultivation, so that the user effortis often directed to non-cultivation purposes.

 

Intensive tillage canreduce soil density Entisols. Demolition of the land until the solum C orparent material is expected to reduce the physical barriers to rooting andwater permeability. Solum C, which revealed expected to mold quickly, but thespeed is very dependent pelapukannya with the presence of water andmicroorganisms. To accelerate the weathering process of organic materials is alikely alternative. The use of organic materials to improve the physical,chemical, and biological soil by providing organic matter into the soil, thesoil becomes more crumb structure due to the elastic properties of organicmaterials, in addition to the water holding capacity of soil also increased.Content of organic matter in soil can also increase the number ofmicroorganisms so that the decomposition process can run faster. Based on this,the combination of demolition and the use of soil organic matter is expected toimprove soil physical properties Entisols that can support plant growth.

 

2. SpecificObjectives

 

This study aims toobtain data on soil productivity improvement efforts Entisols and chances forcultivation of soybean crop, so the marginal status of land owned by landEntisols be turned into productive land and can be planted by crop cultivation.In particular, this study aims to:

 

1. Knowing theinfluence of parent material and the dismantling of weeds as compost organicmaterial to changes in physical and chemical conditions on the ground Entisols.

 

2. Knowing the growthand yield of soybean in soil after demolition Entisols parent material and theprovision of compost weeds.

 

3. Primacy Research

 

Entisols there islots of land in the district classified Pangkep difficult cultivated marginalland. The land is classified as N1 class with the inhibiting factors of theshallow soil depth. Efforts to increase productivity to be fit for the purposeof crop cultivation can be cultivated through effort pembangkaran parentmaterial, with the hope of the host when exposed to mold, so that the soil physicalinhibiting factors can be reduced. Weathering process can also be acceleratedby providing additional input in the form of organic matter into the soil, sothe activity of microorganisms that will make the process of decomposition canalso be increased. Utilization of microorganisms in accelerating the weatheringprocess can be done by means of bacterial culture originating from EM4 isexpected to multiply rapidly as a result of organic matter derived from compostweeds that are acquired from approximately the location of the study.

 

If the process ofdecomposition of soil parent material has occurred, then the soil is expectedto be ready and able to support plant growth, In this study selected soybeanplants, because plants are short-lived, easy to measure the growth andproduction and can be used as indicators of soil fertility by looking at thedevelopment of nodules formed .

 

Based on dataobtained from both soil and plant factors, it can be recommended a package oftechnology on how to land management Entisols of its status as marginal landinto productive land suitable for cultivation purposes.

Edited February 27, 2011 by Kikis