RESPONSE OF CHICKPEA (Cicer arietinum L.) VARIETIES TO IRRIGATION, NITROGEN AND PHOSPHORUS UNDER MIDDLE GUJARAT CONDITIONS
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Date
1997
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AAU, Anand
Abstract
A field experiment was carried out on sandy clay loam soil at Krishi Vigyan Kendra (KVK), Gujarat Agricultural .university, Devataj (Sojitra) to study the "Response of chickpea (Cicer arietlnum L.) varieties to irrigation, nitrogen and phosphorus under middle Gujarat conditions" during rajbi season of 1995-96. Thirty two treatments comprising all possible combinations of two levels of irrigation (no irrigation and irrigation at flowering and pod development stages), four varieties (Chafa, Phule G-5, lCCC-4 and Dahod Yellow) as well as two levels each of nitrogen (0 and 20 kg N ha-1) and phosphorus (0 and 40 kg P2O5 ha-1) were tried in split split plot design with four replications. Irrigation levels were relegated to main plots, varieties to sub-plots and combinations of nitrogen and phosphorus were allotted to sub-sub plots. Irrigating the crop at flowering and pod development stages significantly recorded the highest grain yield (828.17 kg ha-1), while straw yield was not markedly influenced due to irrigation treatments. Irrigation treatments failed to manifest significant effect on plant height, number of primary and secondary branches plant-1, number of flowers plant-1, number of pods plant-1, number of grains pod-1 and 100 seed weight, however, slightly higher values of these characters were recorded under irrigation at flowering and pod development stages. Pod length, harvest index and protein content were significantly higher under irrigation at flowering and pod development stages than no irrigation. The same treatment also recorded the maximum net realization of Rs. 3 621 ha-1 with CBR of 1:1.55. Among different varieties tried the Dahod Yellow being at par with variety lCCC-4 registered significantly higher grain yield (839.82 kg ha-1) than other varieties. While, variation in straw yield among different varieties were not large. Variety Dahod Yellow followed by variety lCCC-4 recorded the highest number of primary and secondary branches plant-1 number of flowers plant-1, number of pods plant-1 and harvest index. On the other hand, variety Phule G-5 showed its superiority over rest of the varieties in respect of plant height, pod length, 100 seed .weight and protein content. Number of grains pod-1 was not significant due to varieties. Variety Dahod Yellow gave the maximum net realization of Rs. 4151 ha-1 with CBR of 1:1.67. Significantly higher grain yield (848.85 kg ha-1) and straw yield (1444.91 kg ha-1) were recorded under 20 kg N ha-1 than no nitrogen, similarly, plant height, number of primary and secondary branches plant-1, number of flowers plant-1% number of pods plant-1, number of grains pod-1, pod length, 100 seed weight, harvest index and protein content were also recorded significantly higher under the same treatment. The highest net realization of Ra. 3978 ha-1 with CBR of 1:1.61 was recorded under 20 kg N ha-1 significantly the highest grain yield (83 7.01 kg ha-1) and straw yield (1440 kg ha-1) were produced under 40 kg P2O5 ha-1 Likewise, growth and yield attributes such as plant height, number of primary and secondary branches plant-1, number of flowers plant-1, number of pods plant-1, number of grains pod-1, pod length and 100 seed weight as well as harvest index and protein content were significantly higher under 40 kg P2O5 ha-1 than no phosphorus. The same treatment also registered the maximum net realization of Rs. 3518 ha-1 with CBR of 1:1.52.
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AGRONOMY, AGRICULTURE, A STUDY