Mr.Mahentesh ,
Plan perfectly and undertake conversion operation in the order of priority …because situation differs from location to location …if feasible proceed with investing your money on land conversion and if it does not seem feasible simply please leave it and look for other alternative …
1.You said dry land - means no existing water sources like open well, borewell , tank or canal and purely depends on rainfall . so you need to determine the source of water and available or possible quantity which can be best made available for future crop cultivation …
In such a situation first you look for ground water potential . If that does not click then try nearby source and bring water through pipeline .If any of these sources do not work positively , then you may be obliged to rely purely on rainwater . If rain water is the only available choice then do determine quantity of rainfall received in different month or seasons ( South west monsoon , North east monsoon and summer shower ) .Based on the time and amount of rainfall that your location receive , decide your farming operation…
Generally dry land means those land which is located in such a region receiving rainfall around 600 mm per year …In that case you try water conservation measures like check dam , percolation ponds , farm ponds , summer ploughing , broad bed cultivation etc…
If land is undulated terrain with bushes , plan to remove and clear bushes during rainy season and level the land and divide it into small compartment so as to collect and store rain water insitu…
Do not use chemical fertilizers in dry land area unless otherwise need arises …in case of need use chemical fertilizers in small quantity only during critical period of crop growth , like flowering and fruiting . As far as possible use more organic manure which sustain crop growth in dry land …
In case of land being lateritic or sandy which has poor moisture retention , mix the existing soil with black clayey soil which improve water holding capacity of the soil .
Use mulch that is most important factor in dry land cultivation - variant of mulch is organic and synthetic …As far as possible use organic mulch …
If you grow seasonal crop , then adjust your sowing time to effectively utilize rainwater …
In nutshel the conversion of dry land into productive land necessitate efforts to find available water source . Other things come next in the process …
Different crop needs different level of water to produce economic yield …For example for Paddy and banana it needs 1200 to 130 mm, sugarcane 2000 to 2200 mm, sorghum and maize - 500 to 700 mm.groundnut 400 to 500 mm.pulses and sunglower 300 to 350 mm…
Native crop plants sustain well in dry land…Hybrid crops could not produce much in dry land situation …
Intercropping with suitable companion crops is advisable in dry land situation …
So the conversion of dry land into productive land depends on so many factors that are location specific …It is a comprehensive subject . Farmers needs to be prudent and intelligent to apply his mind to the specific situation …
You just learn from others experience and select those techniques which best fit your situation vis a vis apply your mind in case of exigency . Because ultimate aim of farming is to gain , not to loose …
In case of dry land , better opt for integrated farming …with different components like short duration rainfed crops , goat , fodder , drought tolerant fruit crops like Tamarind …There are lot of options and choices …so plan your program after studying all the parameters that are relevant to your condition …
Stay blessed
Ramu,
chennai