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Current Category » Rainfed Agriculture

Proportionate Cropping

In this system land area allocated to crops of different growing duration on the basis of long term probabilities of soil moisture. Research conducted at OCS Haryana Agricultural University, Hisar allocating 40% of land to guar U 20 d durational. 40% to pearl millet (70 days) and 20% to mungbeen (50 days) enabled to harvest all three crops in good rainfall years and at least two crops in all but severe drought years (Virmani, 1989). Thus, proportionate cropping can help to decrease the risk of loss and increase over all productivity.

Moisture deliverinacy and cropping system:
In covered and rained regions because of combined effect of variable rainfall. High Evapotranspiration rates and poor water tolding capacity of soils crops are often exposed to suhoptimal moisture availability our mg our or more capital plenological stages of crop growth. The adverse effect of moisture deficiency can be minimized by choosing crop or crop varieties with duration appropriately fitting to moisture availability periods (Table B).

Table8. Potential cropping systems in relation to rainfall and soil type.

Rainfall (mm)

 Soil type

 Water availability

 Potential clopping

 

 

 period (week)

 systems

350 - 600

 Alfisols and shallow

20

 Single Water if crop

 

 Vertisols

 

 

350 - 600

 Aridisols and Entisols

20

 Single crop enther

 

 

 

 water if or ran

350 - 600

 Deep Vertisols

20

 Single ran crop

600 - 750

 Alfisols and entisols

20 - 30

 Intercropping

750 - 900

 Entisols, deep Vertisols

20

 Double cropping with

 

 Alfisols, Inceptisols

 

 monitoring

 0 - 900

 Entisols, deep Vertisols.

20

 Double cropping

 

 deep Inceptisols

 

 

  
(Source: Katyal et al., 1994)

Contingent crop planning:
Weather aberrations are important features of deyland agriculture. One season seldom matches with another. As such every year poses a new situation. It if therefore, not enough to develop the tectrology for normal weather conditions but strategy needs to be developed for aberrant weather suitability. In fact these aberrations are the part of the propping situations.
Analysis of weather data and crop conditions at Solapur reveals that out of a years, 3 years are normal and ? Years are abserval in scar rate tract. Water delayed onset of monsoon 20 - 30% of the total cropped area team.


Table 9. Contingent crop planning on shallow and medium deep sols (45 cm depth) of scarcity zone of Maharashtra.

On set of monsoon

 Crops suggested

 (Fortnight)

 

 June II

 Pearl millet, sorghum, pigeanpea, sunflower, green

 

 gram black gram, proundnut, horse gram, kindney bean,

 

 castor, etc. and intercroppings.

 July I

 Pearl millet, sorghum, horsegram, kidney bean, pigeon pea,

 

 groundnut, sunflower, castor etc. & intercroppings

 July II

 Pigeonpea, sunflower, horse gram, kindney bean castor

 August I

 Pigeonpea, sunflower, horsegram, castor.

 August II

 Pigeonpea, sunflower, castor

 September I

 Rabi sorghum (M - 35 - 1) for fodder or selection 3 for

 grain

 

(Source : Patil et al., 1981)
monson for shallow to medium deep soils of scarcity tract of Maharashtra (Table 9).

Current Category » Rainfed Agriculture